Components

Kids wearing out their Strider? That's a good thing! Upgrade their out-of-doors adventures with these aluminum wheels. These lightweight 12-inch wheels are a great upgrade for trail riding and come with tires and tubes.

Teravail's 27.5 x 3.0” Coronado offers the best of multiple worlds. You get the increased ground clearance, stability, and angular momentum of a 29er plus the larger footprint and flotation that a 3” wide tire offers. A mild and open center tread works with the slightly more aggressive side knobs to offer traction and efficiency in sandy terrain.

From loose snow to icy freeze-thaw and everything in between, Wrathchild craves the best and worst winter conditions. Deep center lugs aggressively claw into unconsolidated snow for extreme acceleration and braking traction. Super-tall side lugs dig into loose snow to provide predictable and confident cornering. It doesn't matter whether there's ice on the road ahead, the Wrathchild is available in both studded and non-studded models. Let Wrathchild bring out your inner-child and go carve up some local trails.

Globally renowned and truly timeless, the B17 Standard is the saddle that secured Brooks' place in cycling history. It's been in constant production since 1910, providing cyclists around the world with over one hundred years of sublime support and unrivaled comfort. Each B17 Standard shapes itself to its rider, leading to a personal, customized saddle that fits like no other. And of course, it features Brooks' full grain, premium leather top secured by their trademark rivets for the ultimate in style, comfort, and durability.

Continental's Gatorskin Folding combines 3 flat-protection technologies into one fast-riding, high-mileage racing and training tire. It features a super-fine 180 thread-per-inch casing, a bead-to-bead layer of DuraSkin, and is finished with a Kevlar-reinforced top layer. The result is a tire with a lightweight folding bead that rolls and corners with the best of them while providing flat protection second to none. - DuraSkin sidewall protection - PolyX puncture protection - Weight: 220/240/320/325 grams (23c/25c/28c/32c)

The all-new Vanhelga has been redesigned with more aggressive side lugs for added confidence while cornering in loose terrain and updated center lugs that decrease rolling resistance and increase braking traction. Modified siping has made the tread more pliable than ever, allowing the tire to better conform to and grip uneven terrain. With an increased casing volume, the Vanhelga is Ideal for trail riding in loose snow. Dual compound rubber lengthens tread life in the center of the tire while enhancing cornering control on the sides. The tubeless-ready design delivers a super supple ride quality, further enhances grip, and saves weight. In addition to these technological advancements, Vanhelga’s deep and open tread pattern sheds snow and tracks flawlessly when the trail becomes soft and sloppy. - Aggressively siped lugs for enhanced braking, acceleration, and cornering control - Shovel-design side lugs provide increase braking traction and more stable cornering than the previous Vanhelga tread pattern. - Increased ramping on center lugs increases rolling efficiency. - Recommended for 64-100mm wide rims - Dual compound rubber (60a in center, 52a on sides) - Tubeless-ready

Teravail's Kennebec delivers serious loose-conditions traction in plus sizes that take the focus off the who's-wider argument, instead zeroing in on real-world performance demanded by today's riders. Available in two casing types, there is a Kennebec to fit your severe duty dirt needs. Teravail designed the 2.6" Kennebec to offer the best balance of volume, weight, and traction. A slightly smaller casing than standard plus-sized 29er tires reduces weight and rolling resistance while working on a wide range of rim widths. Riders still feel the benefits of increased traction and lower air pressure found in a larger volume casing.

Continental's Town & Country is a durable workhorse on and off the road, built for stability, traction, and value. Police bike squadrons throughout the world use the Town & Country because of its puncture resistance, high mileage and low rolling resistance. The slick center rolls smoothly on pavement and the recessed tread offers control in the corners.

Teravail's Kennebec delivers serious loose-conditions traction in plus sizes that take the focus off the who's-wider argument, instead zeroing in on real-world performance demanded by today's riders. Available in two casing types, there is a Kennebec to fit your severe duty dirt needs. Plus-sized tires on a smaller 27.5 diameter wheel have many benefits. The large volume 2.8" casing offers incredible traction in loose and rough conditions. The confidence inspiring width delivers climbing and descending prowess not found on standard-width tires. The outer diameter is equal to a standard 29" tire which offers extra ground clearance, added stability, and greater angular momentum.

A new addition to the Race Face flat pedal line up: the Chester Pedal. This tough and burly nylon composite body provides a large platform with the same grip as traditional alloy pedals via the bottom loading 8 hex traction pins per side. Thin and lightweight is the name of the game with Chester, featuring a cro-mo axle that is fully sealed and a 100% serviceable bearing and bushing system. This pedal offers great performance for a wide range of riders at a price that leaves plenty of cash in pocket to spring for that round of bevies at your local watering hole after hammering out a day of hot laps with the crew. - Nylon composite body - Replaceable steel pins (8 per side) - Fully sealed - Serviceable - Smooth and durable sealed bearing and bushing system - Cro-mo axle - Thin and lightweight concave platform - Large platform with same grip as traditional pedals

Fabric's Scoop saddle is designed to provide flexibility and great ergonomic feel for all genres of cycling. Starting with their unique flexible base, vacuum bonded upper, and custom design rail, the Fabric Scoop is proven to be the perfect balance of comfort, performance and simplicity. Wide choice of colours & specification -The Scoop is versatile. A regular ‘Best in Test’ winner, it is available in a wide range of specifications and colours to suit the needs and budget of every kind of rider. 3 rider profiles -Choose the Scoop to suit. There are 3 profiles of Scoop saddle; Flat for a more aerodynamic riding position, Shallow for all-day performance and Radius for a more upright, comfort focused position. Durable & flexible -Our unique 3 part bonding process not only results in super comfort but also an easy to clean saddle with smooth lines and superb durability. -Width: 142mm -Length: 282mm -Base: Nylon -Rail: Hollow Cro-moly -Upper: Lightweight PU foam -Cover: Waterproof microfibre

- MODEL NO: CS-HG400-9 - SERIES: SHIMANO ALIVIO M4000 Series - Compatible chain: HG 9-speed - Speeds: 9-speed - Type: HG

As we have visited dealers throughout the world we have heard a common theme, customers want an option for a thicker bar tape! 89 inch rolls and 78 grams per set. (including plugs) The 3.2 mm thickness DSP tape is the thickest version in the DSP line. DSP (Durasoft Polymer) features increased shock absorption and a tacky feel in dry or wet conditions.

The Ergon grip with a full size, multi-position bar end for maximum hand positions, increased leverage, and stability when climbing or during out-of-the-saddle cycling. Perfect for commuting, touring, or for those who like a longer bar end. The bar end angle can be adjusted independently from the angle of the grip for the perfect personal fit and the bar end doubles as a clamp to lock the grip in place and prevent movement while riding. Like all the grips in the GP-Series, the GP5 eliminates numb hands, aching fingers, and tired forearms. The GP5 is made from 100% German, TÜV-certified rubber compounds of the purest quality. - Not suitable for use with carbon handlebars - Uses: touring, commuting - Clamp: fiberglass composite with rubber inserts

Thomson's Elite Seatpost is perhaps one of the most recognizable bicycle components in the world and it has earned its reputation as a super-strong, light and reliable beauty. With roots in the aerospace industry, Thomson builds the post with a tough and light 7000-series aluminum body, an elliptical extrusion that adds strength and stiffness, and a head and seat clamp forged and machined from a block of aluminum to eliminate any possible weak areas. Plus, its simple-to-use 2-bolt seat clamp allows speedy, infinite and secure seat angle adjustment from minus 5 degrees to plus 29 degrees. Upgrade your favorite ride to a Thomson seatpost and start riding in style.

At a time when mountain bike tires were unquestionably gum walled, the VelociRaptors came out in black and haven't looked back ever since. They changed the game in 1994 with a steering specific front and a rear that could really dig. The VelociRaptors continue to be popular because to put it simply...they just work. Try riding one of the most classic combos of all time. Usage: XC / Trail Conditions: Dry to Wet / Hardpack to Mud - Comp Tube-Type: 829g, DNA compound

Teravail's Cumberland offers a stable platform for loaded-down riding on rugged dirt trails and chunky jeep roads. The low-profile, medium spaced knobs in the center maintain low rolling resistance while providing reliable climbing and braking traction. Meanwhile, large side knobs rarely seen on tires that can go the distance bite deeply to deliver outstanding angular stability on loose and rough surfaces. Available in two casing types, there is a Cumberland to fit your severe duty dirt needs. The large volume casing offers excellent traction and inspires confidence while climbing and descending. The outer diameter is equal to a standard 29" tire which offers extra ground clearance, added stability, and greater angular momentum.

iSSi's Trail Pedals offer bold styling, reliable technology, and a wide platform for better contact while in and out of the pedal. The Trail platform disperses pressure on your foot and provides a little extra confidence when descending unclipped. Dual-sided entry makes these SPD-compatible pedals simple to get into, while easily adjustable entry/release tension is perfect for beginners and experts alike. With triple-sealed cartridge bearings and durable chromoly spindles, these pedals will spin smoothly for countless rides. Plus, four degrees of float helps your knees track naturally during every crank revolution. The Trail III is available in three spindle lengths, standard, +6, and +12mm. Longer spindle models are only available in Intense Black.

iSSi's Trail Pedals offer bold styling, reliable technology, and a wide platform for better contact while in and out of the pedal. The Trail platform disperses pressure on your foot and provides a little extra confidence when descending unclipped. Dual-sided entry makes these SPD-compatible pedals simple to get into, while easily adjustable entry/release tension is perfect for beginners and experts alike. Plus, four degrees of float helps your knees track naturally during every crank revolution. The Trail II pedals are available in three different spindle lengths, standard, +6mm, and +12mm. The longer spindle models are available in Intense Black.

From loose snow to icy freeze-thaw and everything in between, Wrathchild craves the best and worst winter conditions. Deep center lugs aggressively claw into unconsolidated snow for extreme acceleration and braking traction. Super-tall side lugs dig into loose snow to provide predictable and confident cornering. It doesn't matter whether there's ice on the road ahead, the Wrathchild is available in both studded and non-studded models. Let Wrathchild bring out your inner-child and go carve up some local trails.

45NRTH's Gravdal welcomes you to the world of high-performance commuter tires. 252 Studs are carefully positioned across the 700c x 38mm casing profile to yield a high level of confidence and safety. Siped tread lugs and oval-shaped stud groupings provide exceptional cornering, braking and acceleration traction. Run the Gravdal at minimum pressure for unmatched traction performance, and maximum pressure for a quieter and faster ride on clean roads.

Maxxis' Ikon, as the name suggests, is one tire that other treads look up to. Great for everything from dry hardpack to loose, this light tire still gives you high-volume and a 2.2-inch width for hold-your-line control. This member of Maxxis' eXCeption Series of tires features a combination of a softer 62a compound and supple 120 TPI casing. This makes for a lighter model tire and enhances cornering, braking, and acceleration. Run it on the front, back, or both. - Folding bead - Weight: 520g (3C), 575g (3C EXO) - Recommended for race use only

iSSi's Trail pedal provides a wider platform, solid pedal contact, and mechanism protection for the rigors of cross-country and all-mountain riding—the iSSi Trail pedal provides the rider with more control and more confidence when the terrain gets tough. - Chromoly spindle, ED-coated - 8mm hex broach - 52.5mm spindle length with +6mm and +12mm options available - SPD Compatible - Black chrome hardware - Adjustable spring tension - 4º cleat float - Compatible with two-bolt style shoes - Two-sided clipless pedal

- High-polished, chrome-plated CrMo construction - Purebred classic track bar in either 31.8mm or 26.0mm bar-clamp diameter - Deep drop and reach profile for true sprinting performance - 654g @ 42cm(26.0mm): drop/reach are measured center-to-center

Riding your fat bike on ice just got even better with the redesigned Dillinger tread pattern and tubeless compatibility. Dial-in your traction by custom installing up to 240 studs that allow you to rail icy off-camber singletrack with confidence and control, while taller side lugs bring improved cornering in snowy conditions. Dillinger's center tread is tightly spaced for speed when you need it so you can power up an icy climb and rip down the other side as the studs claw into the slick surface.

Maxxis' Overdrive Elite is the perfect all-around tire for any touring or commuter bike with 20-inch tires. The grooved tread handles all types of weather on all types of terrain and the Kevlar belt provides serious protection from flats. Plus, the reflective stripe keeps you visible and safe. - Folding bead - Weight: 240g (20 x 1.15), 370g(20 x 1.35)

Cruise in style with Schwalbe's Big Apple Performance tire. Their wide Balloonbike profile provides natural cushy suspension, and it rolls easily thanks to the smooth tread. Plus, you get their RaceGuard puncture protection and lightweight Endurance rubber compound for confident handling.

- 2-ply rubber shield fits between tire and tube to prevent flats - Pair

- Optimum Power Transfer - Best Balance For Lighter Weight (-7G) And Efficiency - New Designed Crank Arm - Maintains High Rigidity And Reduces Weight - Hollowglide - 4-Arm Construction Crankset - Adapted For Race Specific Disc Brake System - Shorter Length Of Rear Center With O.L.D. 135mm - Redesign The Gear Teeth Profile To Fit Wider Gear Pitch - 50-34T/53-39T/54-42T/55-42T/52-36T - Iconic Design - Chain Line: 43.5

Pro Semi-Metallic pads feature a lightweight aluminum backing plate attached to the same quiet and high-performance compound found on Jagwire's Sport Semi-Metallic series disc pads. Weight is reduced by nearly 50%. These pads are perfect for cross-country applications.

Origin-8's Ultim8 Slimline Platform pedals feature ultra-light and thin forged 6061-aluminum platforms, heat-treated chromoly axles and cartridge bearings for a super grippy, ultra-smooth, lightweight and reliably tough set of pedals. They also have replaceable pins.

This derailleur not only answers the Eagle drivetrain’s need for greater capacity, but is also the next evolution of SRAM's proven, 1x-specific X-HORIZON design. The larger, 14-tooth X-SYNC lower pulley, allows 10- to 50-tooth cassette capacity in this compact design, and also adds to Eagle’s overall smooth-pedaling feel. SRAM's Type-3 ROLLER BEARING CLUTCH features a smoother torque curve for a quieter, more consistent operation and feel. CAGE LOCK has been moved back and out of the way, protecting it from trail debris. A redesigned, robust mounting system further improves the Eagle derailleur’s performance and overall durability.

Cruise in style with Schwalbe's Big Apple Performance tire. Their wide Balloonbike profile provides natural cushy suspension, and it rolls easily thanks to the smooth tread. Plus, you get their RaceGuard puncture protection and lightweight Endurance rubber compound for confident handling.

Shimano's In-Line Brake Cable Adjuster with quick release allows you to make changes to your road caliper brake's cable tension or open a brake caliper's arms to remove a wheel.

- Compatible with drop bar levers and short pull mountain bike levers - Modeled after the popular Mafac Tandem cantilever - Sealed pivot system with adjustable spring tension and Kool Stop pads - Recommended for standard pull (not linear pull) brake levers - Made in USA

Zipp Speed Weaponry Valve Extender Wrench Set - Two 4 mm and 5 mm combination wrenches - Replacement wrenches required to properly install Zipp integrated valve extenders - Use with Zipp Tangente tubes with aluminum Presta valve and aluminum valve extender

Introducing the Highline: years of research, development, and rigorous testing has given rise to the world's finest dropper post and remote. Premium sealing, exclusive Igus bearing and keys, Jagwire cable, and a self-contained hydraulic cartridge deliver industry leading quality and reliability. The Highline features the world's most ergonomic remote: unique spherical adjustment, with near-infinite rotation and tilt customization options, for perfect cockpit ergonomics. Specs: Setback: Zero Length: 345mm (100mm travel)/ 395mm (125mm travel)/ 465mm (160mm travel) Material: 7075-T6 aluminum Minimum Stack height: 47mm Weight: 525g (100mm travel)/ 560g (125mm travel)/ 610g (160mm travel) Warranty: 3 years

Weighing in at a mere 260 grams per set, the SPRY, with its sleek, super low-profile design, makes a great addition to the XPEDO flat pedal line up. The magnesium-cast body measures only 11mm thin and allows plenty of ground clearance in the most aggressive terrains. Its large platform area with 14 pins on each pedal provides superior grip for maximum pedal efficiency. - Weight: 260g - Body: Magnesium - Spindle: CroMo - Bearings: 2 Cartridge - Bushings: 1 DU - Pins: 28 Straight Pins per pair - Size: 106x100x11 (mm)

The original ergonomic grip. The GP1 sets the worldwide standard in ergonomic comfort, materials, and quality. The GP1 eliminates numb hands, aching fingers, and tired forearms. The uniquely shaped grip body is made from 100% German, TÜV-certified rubber compounds of the purest quality – with infused medical-grade white mineral oil for improved flexibility and durability. A forged aluminum clamp allows the grip to be adjusted for perfect fit, can be easily readjusted, and eliminates twisting once installed. - Carbon bar compatible - Uses: mountain biking, touring, commuting - Clamp: 100% recyclable aluminum

SRAM's PowerGlide PG-820 Cassette is a fine 8-speed cassette. It features steel cogs with SRAM's DuraBlast technology for smooth, precision shifting and excellent durability.

The Problem Solvers Cassette Spacers are made of light and durable anodized aluminum and come in different thicknesses for correctly spacing various brand and model cassette cogs. Measure and match your spacers to choose the right width.

When you're out on a ride the last thing you want is to be limited by your tires in any way. Surly's ExtraTerrestrial tires were designed to let you ride without limits by following a simple tenet for tire design: make 'em high-volume and kick-ass. The ExtraTerrestrial tire was meant to serve as a heavy-duty off road touring tire that shines on hard pack surfaces. It uses a nylon breaker in the sidewalls for cut protection, a molded pattern for anti-cut propagation, and a Kevlar cap under the tread to protect against flats. The ET tire uses a distinctly directional tread pattern and its width yields more traction than you might expect from a tire with such little rolling resistance. The tread is low profile with a file tread in between blocks. The ExtraTerrestrial tire has enough width and traction for the soft stuff and won't bog you down on smooth or hard surfaces. It's made to be durable and versatile and is at home on tour or on the trail. - Bead Seat Diameter: 559mm - Casing: 60tpi, tubeless-ready bead (928g)

Whisky's No.9 12f is their most versatile carbon drop bar. It's equally at home on tarmac, gravel or twisty cyclocross courses. Full carbon construction offers a light, stable platform while reducing vibration and adding comfort. From touring to racing, this modern bar is a great addition to almost any bike in your stable. The comfortable 12-degree flare provides excellent control and comfort, especially off-road, or in challenging conditions. A semi-compact design offers seamless transitions between positions. Available in a complete size range, this bar is a perfect fit for any rider. - Carbon - 220g (42cm) - Drop: 116mm - Reach: 68mm - Flare: 12° - Measured Center-to-Center at the levers

When you’re out on a ride the last thing you want is to be limited by your tires in any way. Our ExtraTerrestrial Tires were designed to let you ride without limits by simply following the only tenets we have for tire design: they’re high volume and they kick ass. The ExtraTerrestrial tire was meant to serve as a heavy-duty off-road touring tire that shines on hardpack surfaces. It uses a nylon breaker in the sidewalls for cut protection, a molded pattern for anti-cut propagation, and a Kevlar cap under the tread to protect against flats. The ET Tire uses a distinctly directional tread pattern and its width yields more traction than you might expect from a tire with such little rolling resistance. The tread is low profile with a file tread in between tread blocks. The ExtraTerrestrial tire has enough width and traction for the soft stuff and won’t bog you down on smooth or hard surfaces. - Folding bead - Casing: 60 TPI - Recommended rim width: 23 – 30mm

The Standard. Often imitated, never duplicated. The Minion DHF is the standard by which all other downhill tires are measured. The DHF incorporates ramped knobs for low rolling resistance and channel-cut knobs to increase gripping edges, giving straight-line control and precise cornering. - Directional, ramped knob design - front or rear - 60 TPI

Z410 is a basic, affordable replacement 1/8th chain. Available in an array of colors for adding a touch of style to your bike. - For non-derailleur bikes: BMX, cruisers, etc. - Includes KMC Master Link

KMC's SL Chain sets a new standard with weight reduction, improved shifting performance & enhanced durability. - 1/2" x 1/8" - 112 Links - Black - 1 speed - 1/8" Track Bikes & BMX Racing, Freestyle - Hollow Pins & Plates - Special Dynamic Configured Plates - Super Light: 349 grams - Anti-Drop Design - Heavy Duty Structure - Hollow Inner Plates - Hollow Outer Plates - Hollow Pin - Inner Plate Chamferring - Mud Shedding Design - Special Dynamic K Configuration - Stretch Proof Treatment

When it's time to replace your 9-speed cassette, check out SRAM's PG-950 cassette. It delivers solid shifting and durability ride in and ride out for your 9-speed rig.

SRAM's MRX Comp Twist Shifters are simple to use and offer solid shifting and reliable construction. Shifting one gear or the whole range is simple with just a twist of the wrist. They shift a 2:1 Shimano rear derailleur and a SRAM or Shimano derailleur up front.

The Knard is a tire that just makes sense. With its tightly-spaced, low-block tread pattern, it provides the perfect ratio of traction and low rolling resistance. It grips well on all sorts of different surfaces and will haul some sausage on hardpack terrain or groomed trails. If you want a tire that has a little less bite and a bit more speed but don't want to sacrifice traction, look no further. - Wire bead - Casing: 27 TPI - Max pressure: 30psi - Weight: 980g

Whisky's No.9 50d rims are designed to a be a lightweight, aero, stable starting point to build exquisite wheels. They offer an aero advantage over the 30d rims, while offering a stiffer, more robust platform. Fit for long days in the saddle, cutting through the wind and hammering finish line sprints, they’re a perfect all-rounder. These disc brake-specific rims offer clean design and aesthetics. Featuring a wide inner width, they pair well with a variety of tires across the full range of drop bar pursuits. As with all rims Whisky makes, these come with tubeless valves and required tape in the box. - Designed to be used with spoke nipple washers - Rider weight limit: 300lbs

The Problem Solvers Handlebar Clamp Shim allows you to fit almost any handlebars in almost any stem. It's machined of light and durable aluminum and grooved on the inside to hold tightly.

Shimano's 105 10-Speed Cassette delivers excellent shifting and durability. The cogs are made of long-lasing, smooth-running steel. They have Shimano's engineered tooth shapes for precision shifting. And for lightness, the cassette has an aluminum carrier for the top cogs and nylon spacers.

Surly's Open Bar Handlebar is the go-to option for a good time. It features lots of space for grips, shifters, brake levers, or any combination of the a fore mentioned. The swept-back angle is comfortable for your wrists, and the stout chromoly construction is durable yet compliant. It's at home on bike paths or neighborhood cruises, and at an ominous 666mm, it's even wide enough to tackle some singletrack.

Ride comfortably on even the hottest days with Selle Royal's Lookin saddle. Its Cool Cover top keeps the saddle up to 25 degrees cooler. In addition to the lower temperatures, the Royal Vacuum Light construction keeps the weight to a minimum. And last but far from least, Selle Royal's Royalgel eliminates pressure points for ride-all-day plushness. Lookin saddles come in four styles, sure to fit your personal preferences.

Selle Royal, along with researchers from the Sport University of Cologne, the largest sports university in Europe, have applied theory, data and methods to bicycle saddle research in an attempt to unmask the fundamental design characteristics essential to optimizing well-being and overall cycling performance. The result is SCIENTIA, a full spectrum of 9 ergonomic saddles scientifically engineered to precisely and comprehensively fit each rider. With its outstanding design based on a scientific research, this saddle guarantees the ultimate level of comfort that perfectly fits the moderate rider. Padded with the 3D skingel, specifically positioned in the Central Reservoir for the soft tissues, it avoids shocks due to the innovative Curva Suspension. Sizing - M > 1 (Small) fits riders with less than 11cm of ischial variation - M > 2 (Medium) fits riders with 11-13cm of ischial variation - M > 3 (Large) fits riders with more than 13cm of ischial variation Dimensions/Weight - M > 1 (Small): 289mm long x 141mm wide / 425g - M > 2 (Medium): 289mm long x 161mm wide / 455g - M > 3 (Large): 289mm long x 178mm wide / 465g

Shimano's Ultegra 10-Speed Cassette delivers pro-level shifting and durability. The computer-enhanced tooth shapes and tough cogs mean you can shift quickly, precisely and smoothly even under pressure.

Whisky's No.7 Stem is a lightweight stem with a clean aesthetic. Stems only have a few jobs to do: hold the bars, provide stable support, and look good. Ours does all three admirably. Paired with any of our handlebars, it rounds out the perfect Whisky cockpit. Available in a wide range of lengths to perfect your bike's fit and performance.

Electra's Ergo Saddle gives you the support and comfort you need to cruise all day. Its plush padding is paired with a soft Lycra insert and shock-absorbing elastomers to smooth out even the roughest roads.

Stan's No Tubes' Presta Removable Valve Core is a replacement valve core for Stan's No Tubes Presta valve stems and Presta valve equipped rim strips.