Accessories

The K-EDGE co-polymer insert for Garmin 1/4 Turn style computers is a replaceable item. While it is extremely strong, we designed this insert to fail on a significant impact before the tabs on the back of the Garmin break. - Qty 1 – K-EDGE Co-polymer Insert for Garmin 1/4 Computer (Part No. K13-503) - Qty 2 – M3 x 0.5mm x 6mm with Pre-Applied Nylon 180,18-8 S.S. Screws

Convert your K-Edge Garmin Computer Mount to be a Computer + Action Camera combination mount. Works with any camera that utilizes the GoPro sytle interface, including GoPro Hero, Garmin VIRB, and Shimano CM-1000. - Camera Adapter mount with GoPro style interface - Fits K-EDGE Garmin Mounts (K13-500, K13-505, K13-560) - Locks GoPro, Shimano, VIRB style cameras underneath Garmin Computer. - Centers camera in out of site position - Improves video clarity by removing plastic mount shake - Colors: Anodized Black - Weight: 14grams *Note: Garmin VIRB requires the GoPro adapter that is included in the box with the VIRB.

Lock your bike's quick-release components with Kryptonite's 4-foot long Keeper 512 Combination Cable. It's a 5mm braided steel cable that offers increased cut resistance and features a pre-set combination closure. The vinyl coating protects bikes and equipment from scratches, too.

The KryptoFlex 525 Seatsaver Cable is a 2.5-foot cable ideal for securing your bike's seat and seatpost. It's 5mm braided steel cable provides increased cut resistance and the vinyl coating protects bikes and equipment from scratches. The KryptoFlex 525 cable is 3/16-inch x 2.5-feet.

The KryptoFlex 1004 Double Loop Cable is a 3/8-inch braided steel cable providing increased cut resistance. The double loops are for use with U-locks, disc locks and padlocks. The vinyl coating protects bikes and equipment from scratches. It includes the Hook-n-Loop strap for easy carrying. The KryptoFlex 1004 Looped Cable is 3/8-inch x 4-feet.

The KryptoFlex 815 Combo Cable is an 8mm braided steel cable to be used in low-crime areas or as a secondary security measure. The integrated, four-digit resettable combination lock has indexed number dials to provide error-free combination setting. The KryptoFlex 815 Combo Cable is 5/16-inch x 5-feet.

The KryptoFlex 815 Key Cable is an 8mm braided steel cable to be used in low-crime areas or as a secondary security measure. An advanced cylinder provides protection from picking and a sliding weather guard protects the cylinder from dirt, water, and road grime. And, the Transit Flex Frame Bracket gives you plenty of tool-free mounting options so the lock stays out of your way while you're riding. The KryptoFlex 815 Key Cable is 5/16-inch x 5-feet.

- Easy-Click Locking - Ergonomic dials for ease of use - New easy to use reset design - Included bracket to easily carry on a bike (-03, -06)

SPECIFICATIONS & FEATURES - 10mm, flexible BRAIDED STEEL CABLE provides increased cut resistance - ADVANCED CYLINDER provides greater protection from picking - EASY-CLICK locking - no need for keys when locking up - Dual sliding cylinder WEATHER GUARDS with automatic close feature - 2 EASY-TO-USE REVERSIBLE KEYS - Key Safe Program - Product dimensions: 3/8” (10mm) cable diameter 5’ (150cm) cable length - Product weight: 0.95 lbs (0.43 kgs)

The KryptoFlex 1007 Double Loop Cable is a 3/8-inch braided steel cable providing increased cut resistance. The double loops are for use with U-locks, disc locks and padlocks (sold separately). The vinyl coating protects bikes and equipment from scratches. It includes the Hook-n-Loop strap for easy carrying. The KryptoFlex 1007 Looped Cable is 3/8-inch x 7-feet.

- Easy-click locking, no need for keys when locking - 2 reversible keys, can be inserted either way - Included bracket to easily carry on a bike (-01, -03, -07) - Coiled and compact for easy transportation (-02, -05, -06)

Kryptonite's Keeper 12 U-Lock is like a tough nut: you just can't crack it. Thanks to the 12mm hardened steel shackle that resists cutting and leverage attacks, you get peace-of-mind while you run into the grocery store or lock up outside the coffee shop. The shackle connects to the disc-style cylinder for exceptional security, and it all sits in the click-style transportation bracket so it stays stable during transport. To top it all off, you get a reinforced collar over the keyway for added protection. Specifications & Features - 12mm HARDENED STEEL SHACKLE resist hand tools - Reinforced collar over keyway for increased protection - HIGH SECURITY DISC-CYLINDER - Includes click style TRANSPORTATION BRACKET - High security BENT FOOT DESIGN for ease of use - Protective vinyl covering - Key Safe Program

- 12mm hardened performance steel shackle - New hardened double deadbolt design with anti-rotation to resist against twist attacks - Disc style cylinder with center keyway - Includes side-mount snap-in bracket - Includes 4' flex cable for securing front wheel or other accessories - Includes 2 stainless steel keys with an ergonomic design to reduce torque and keep them from bending or breaking - Key Safe Program - Product dimensions: 4” x 8” (10.2cm x 20.3cm) - Product weight: 2.40 lbs (1.09 kgs)

We've all had a friend like The Dirtbag at some point in our lives. He's cheap and a little rough around the edges. Not the kind of guy you'd want to introduce to your business associates, but he's dependable and always makes for a good time. The Dirtbag is the most affordable rack on the market, it's easy to use and can be easily bolted to just about anything.

For those cases where fitment just isn't right. The Hi-Lo is a 2" hitch Extension & Rise/Drop built with Kuat style. It provides 7" or 10" of extension and 2.125" of rise/drop. The Hi-Lo comes with a threaded hitch pin to ensure a tight fit in your receiver. Approved for use with the Kuat NV 2.0, Base 2.0, Sherpa 2.0 and Transfer family.

The Transfer v2 is more solid than ever. From the steel construction of the original to a new Flatlock hitch cam for enhanced stability in tow. Plus, a semi-integrated cable lock for an upgrade in security. The best part? The new Transfer v2 has the modular configurations available so you get a multi-rider rack at an everyone-friendly price. - Flatlock cam for 2", ball cam for 1.25" - Includes semi-integrated bicycle cable lock - Tamper-resistant hitch security - More robust hitch design for enhanced stability in tow - Holds up to a 50" wheelbase bike (previously 47") - Holds wheels 18"-29" (previously 20"-29") - Holds tires up to 5" with accessory strap (previously 4.5") + better hook clearance for loading fat bikes - Automotive-grade 750 hour salt spray hardware - Dedicated 2" hitch version in the 2 bike configuration can be directly mounted on campers, recreational vehicles, or trailers with CHASSIS MOUNTED RECEIVERS ONLY.

With years of experience and feedback, Kuat overhauled every feature and streamlined the look while maintaining the spirit of its predecessor. A re-designed pivot system with foot assist will endure a lifetime of abuse. Adjustable cradles allow for fast bike fit adjustments. Individual bike cable locks are longer, more durable, and easier to use. Holds bikes with up to 4.8-inch tires ensure a true fit for any bike in your stable. Updated ratchet arm creates an intuitive release and a more stable tow. The ground-up re-design of the Trail Doc work stand delivers a pro level feel. These are only the highlights, resulting from 3 years of extensive development, making the NV 2.0 the most advanced hitch rack on the planet. - Adjustable front tire cradle system - Re-designed pivot with optional foot assist - Fully integrated cable locks - Trail Doc included - Front tire ratchet design with an intuitive release - Rear tire strap features a co-molded strap to protect wheels - No-tool install with hand tight hitch cam system - Premium gloss metallic powder with water transferred logos - Hitch lock included - 2 Bike capacity up to 60 lbs. each - Holds wheelbases up to 48-inch, and tires as large as 4.8-inch with use of the Phat Bike Kit - Fits 20-inch to 29-inch tires - Wheel adapter needed for 20-24-inch tires - Available in both 2-inch & 1.25-inch hitch sizes - Dedicated 2-inch model is able to carry up to 4 bikes with optional NV 2.0 Add-On

Versatile GPS and accessories forward mount. Multiple mounting options to maximize GPS and accessories placement. Composite matrix construction with aluminum arms. Bolts directly to stem faceplate. Lezyne X-Lock and GoPro mount compatible. Includes mounting hardware. - Direct X-Lock Mounting System not compatible with all stems.

Plenty of room and durability to support you on epic rides. If being prepared is important the super cache can carry enough to accompany you on epic rides. - Water resistant 1000D material with YKK zipper - Interior division for all your essentials - Reflective logo, webbing to clip light - Angled straps achieve a low profile fit - No-snag Velcro and Amara leather limit abrasion

- Constructed using a 6mm aluminum rod - Embossed MSW logo

The MSW Kids Bottle Cage mounts to standard 22.2mm handlebars to put quick and easy hydration within reach of tiny hands. - Mounts to handlebar with included two-bolt clamp and steel mounting bolts - Clamp fits standard 22.2mm handlebar diameter - Easy to slide bottles in and out - Durable, lightweight aluminum construction

The Minoura SBH-300 Saddle Water Bottle Cage Mount for 2 Cages attaches behind your saddle to hold two extra water bottle cages or one extra bottle cage and one spare tube set. It is lightweight at only 135 grams, and is in a good position for aerodynamics. All bottle cage screws are included. Not compatible with I-Beam type saddles, standard dual rail type only. - Behind-saddle mounted holder for two extra water bottle cages, or one bottle and one spare tube set - Good position for aerodynamics - Lightweight at 135 grams - Bottle cage mounting screws included - Not compatible with I-Beam type saddle. Standard dual rail type only

- Frees seized parts - Disperses moisture to prevent rust and corrosion - Provides light lubrication for moving parts - Reduces metal-to-metal contact - Prevents dirt adhesion - Cuts down on friction to improve component efficiency

Angled Presta valve adapter - Designed for disc wheel use

Everybody knows you can't really shred without a solid power stance. The Power Stance kickstand is the whammy bar of kickstands. Take your city shred session to the next level when you slam down the Power Stance. WEOW WEOW! Built with e-bikes, cargo bikes, touring bikes and commuters in mind, the Power Stance is incredibly sturdy. The length is adjustable by the push of a button for quick installation and easy adjustment if parked on uneven ground. Lean easy for years to come with the ultra burly Power Stance kickstand. - Direct mount version - Burly construction is great for supporting heavy bikes - Adjust the length with the press of a button - Durable composite foot - Lifetime PDWarranty

Everybody knows you can't really shred without a solid power stance. The Power Stance kickstand is the whammy bar of kickstands. Take your city shred session to the next level when you slam down the Power Stance. WEOW WEOW! Built with e-bikes, cargo bikes, touring bikes and commuters in mind, the Power Stance is incredibly sturdy. The length is adjustable by the push of a button for quick installation and easy adjustment if parked on uneven ground. Lean easy for years to come with the ultra burly Power Stance kickstand. - Center mount version is compatible with almost any adult bicycle - Burly construction is great for supporting heavy bikes - Adjust the length with the press of a button - Durable composite foot - Lifetime PDWarranty

The Super Patch Kit is comprised of a small plastic case, a piece of sandpaper for roughing up the tube and 6 peel-and-stick patches so no gluing is required. The patches stick fast thanks to 3M technology and they're thin and flexy to stretch with the tube. There's no easier way to patch a tube.

Specially designed for crank bolts, freehub removals and pedal installs and removals, Park's Hex Tools are built for speed, leverage and comfort. Their super-precise hex heads and dual-density, ergonomic handle mean the HTs may soon become your new favorite tools.

Park's Double-Ended Cone Wrenches are designed for home mechanics. They're made of thin tool steel to fit the low-clearance adjusting nuts and cone flats on a variety of bearing assemblies. Each wrench is chrome plated for long life and available in popular combinations from 11 to 18mm. Most applications require a pair of cone wrenches. Call or stop by. We can recommend the correct sizes for your needs.

• Updated to fit better in the hand with a more rounded, smoother shape • The precision sized SW-7.2 fits the three most popular spoke nipple sizes on the market • Nickel plated for years of service • Designed for the home mechanic. FIts the following size spoke nipples: • .127" (3.23mm) • .130" (3.30mm) • .136" (3.45mm)

Heat-treated alloy tool steel, one inch base fits wrench or bench vise. Thin-wall construction allows use without removal of cones and locknuts. The FR-5 has 12 splines that are approximately 23.4mm across. - Fits Shimano, SRAM, Sunrace, Suntour, Chris King and other cassette lockrings - Fits the SRAM XX1 11-speed cassettes - Also fits Shimano disc brake lockrings - Always use a quick-release skewer to hold the tool in place and snug to cogs when loosening; for solid axles, use the axle nut

Heat treated alloy tool steel, one inch base fits wrench or bench vise. Thin wall construction allows use without removal of cones and locknuts. The FR-5.2G has 12 splines that are approximately 23.4mm across. - Fits Shimano, SRAM, SunRace, SunTour, Chris King and other cassette lockrings - Fits the SRAM XX1 11-speed cassettes - Also Fits Shimano disc brake lockrings - Guide pin stabilizes tool

Park's Valve Core Tool is great for tightening, removing and installing Schrader and Presta valve cores (the cores are inside the valve), and also Presta valve extenders that have 5mm wrench flats. It's a handy tool to save a tube when all that's wrong is a broken valve, and it also lets you remove valves to easily insert sealant.

Park Tool introduced the bicycle world to the 3-way hex wrench set over 30 years ago. Our 3-way wrenches fit perfectly in the palm of the hand and provide excellent leverage, making them a favorite of countless shop mechanics worldwide. AWS-3 FEATURES - 2mm, 2.5mm, and 3mm hex set - Wrenches made from industrial tool steel, through hardened and tempered for long life - Chamfered tips for a perfect fit

A handy tool designed to make installation and removal of bicycle electronic shifting wires and batteries quick and easy. - Durable composite body is durable and prevents scratching of expensive components - Angled Shimano Di2 E-TUBE ends allow for both installation and removal in tight spaces - Universal coin cell tool helps remove and install battery covers on SRAM eTap

Park Tool introduced the bicycle world to the 3-way hex wrench set over 30 years ago. Our 3-way wrenches fit perfectly in the palm of the hand and provide excellent leverage, making them a favorite of countless shop mechanics worldwide. AWS-1 FEATURES - 4mm, 5mm, and 6mm hex set - Wrenches made from industrial tool steel, through hardened and tempered for long life - Chamfered tips for a perfect fit

The use of cutting oil or fluid is extremely important when performing any cutting, tapping, facing or reaming operation and Park's Cutting Fluid is a high quality, environmentally safe cutting fluid that extends tool life and makes any frame prep job easier and safer. CF-2 can effectively be used on all metals.

Park's FR-8 Freewheel Remover fits flip-flop BMX hubs with 30 x 1mm threads. It can be held with a wrench or vise, and its narrow profile allows use without removal of cones and locknuts.

The BBT-16 removes and installs the self-extracting/one-key release caps on SRAM and RaceFace cranks with a 16mm hex hole. Features investment cast steel construction and an option to use 8mm hex for better leverage.

Bio ChainBrite Bicycle Chain and Component Cleaning Fluid is a 100% biodegradable, natural, plant-based degreaser formulated for use in Park's CM-5.2 Cyclone Chain Scrubber or as a general purpose degreaser. It won't harm alloy, plastic, or rubber parts. Use CB-4 full strength, do not dilute with water. Cover parts in solvent and scrub using a brush. 16-ounce bottle

Park's Compact Crank Puller is used to remove Shimano Octalink, ISIS Drive and square-taper cranksets. It includes 2 rotating tips (16.3 and 11.3mm) to make the job easy. This is a great tool for your travel and home tool kit.

Park's Hydraulic Brake Piston Press is used to set or reset the piston(s) inside hydraulic disc brake calipers during installation, maintenance and repair. Just push it into the caliper to wedge the piston into place. It's made of tough tool steel with a comfortable and oversize rubber handle for a great grip.

The BBT-22 is a shop-quality tool for installing and removing Shimano and ISIS Drive splined 20-tooth bottom bracket cups. Made from investment-cast steel, the BBT-22 ensures maximum engagement with the bottom bracket cup. It can be used with a 3/8-inch drive torque wrench, a 3/8-inch ratchet driver, a 32mm wrench, the Park FRW-1 Freewheel Remover Wrench (sold separately), or a 1-inch wrench.

Park's Home Mechanic Pedal Wrench is great for your home workshop and event tool box. This top-quality 15mm pedal wrench provides the leverage you need to remove stubborn pedals. It's made to last from heat-treated steel, and the handle has a vinyl grip for comfort.

A clean bike is a happy bike! Park Tool's Bike Cleaning Brush Kit is a four-piece brush set designed specifically to clean bicycles. Ergonomically designed and featuring dual-density, sure-grip handles, the BCB-4.2 kit includes: • 1 GSC-1 Gear Clean Brush • 1 Tapered Detail Brush • 1 Frame Cleaning Sponge/Bristle Brush • 1 Soft Bristle Soaping Brush

Updated to fit current 12-speed cassettes, this combination chain whip and freewheel / lockring remover wrench is heat treated to prevent bending, flexing and wear and features a long, molded handle in addition to a built in hex shaped driver. - Works on 5- to 12-speed road and mountain bike cassettes and freewheels - 1-inch (25.4mm) box-end wrench fits Park Tool Freewheel / Cassette Lockring Tools - Features hardened pins to keep the chain in place

A dirty drivetrain causes poor shifting and unnecessary wear to expensive parts. The Chain Gang contains everything needed to quickly and easily clean the chain, freewheel cogs, and chainrings. The Chain Gang includes: - CM-5.3 Cyclone Chain Scrubber - GSC-1 GearClean Brush - 8 oz. bottle of Bio ChainBrite The CG-2.4 works on nearly any bike, including multi-speed, single-speed, and e-bikes.

Planet Bike's PB Cage holds your bottle securely with sturdy 6.2mm-diameter 6061-aluminum tubing and comes in a variety of colors so you can coordinate your bike down to the last detail.

Compatible with Eco Rack - Extra long replacement stays for Eco rack - Length: 15.5"

Planet Bike's Sideload Cage is perfect for smaller frames and compact geometry. This cold-forged aluminum cage loads from the right on downtubes and the left on seat tubes. And, it's only 41 grams!

Applications: - Center Kickstand - Push spring movement - Aluminium-die cast GD-AlSi9Cu3 Delivery: - incl. screw and washer - Optional: plate - Kickstand Shoe pair optional Material: - Powder-coated black/metallic silver - Pin steel hardened, galvanized - Screw M10x55 - Washer galvanized F6 Specifications: - Support 58x31x66 - Strut length L1 Modell S 290/26" - Strut length L1 Modell L 320/28" - max. Strut length 28" - Weight Modell L 542g - max. Load 25kg

- 100% BPA-free insulated water bottle. - The updated design features triple wall insulation, keeping your liquid cooler 2X longer. - Integrated sports cap makes for quick hydration–pull for a cool stream and push to lock for a spill-free seal. - The innovative Sport Cap is two pieces–cap and valve–and easy to clean. Simply twist, pull, and wash. Plus, they're dishwasher safe. - Dash Handle turns your bottle into the ultimate travel companion, and its convenient loop keeps hydration at your fingertips. - Crafted in Colorado to reduce environmental impact - Weight: 150 g / 5.3 oz - Capacity: 0.71 L / 24 fl oz

When speed matters, our Breakaway Insulated Bolt bottle delivers a burst of cool hydration quickly. Just grab, squeeze, and drink up without splatter. Engineered to keep liquids cool to the last drop. As cycling enthusiasts, we know a thing or two about power sprints, brutal hills, and relishing the downhill ride. We also know there's nothing better than taking a big swig of cold water, hours after it's poured. So, we built the Breakaway Insulated bottle for road warriors like us—those who sweat hard, hydrate harder, and demand replenishment. Your liquids will stay cool twice as long, thanks to the Tri-Layer insulation and radiant heat reflective technology. Plus, we've re-engineered it to lighten your ride while still delivering simple hydration. The compact and durable design fits most bike cages and includes a high-flow, self-sealing Surge Cap for spill-proof transport. - The Breakaway Surge valve maximizes flow rate and self-seals to eliminate spills and splatter. It's spill-proof when open, and pushes closed for leak-proof transport. - The original, 100% BPA-free insulated water bottle. The updated design features triple wall insulation, keeping your liquid cooler 2X longer. - Our bottles are designed with ultra-light materials and a unique grip groove, so you can hydrate with an easy squeeze. - Made for cyclists by cyclists, the Breakaway series fits securely in a variety of bottle cages. The updated Polar Bottle shape has a unique grip groove and wall design for effortless hydration. - The innovative Surge Cap is two pieces–cap and valve–and easy to clean. Simply twist, pull, and wash. Plus, they're dishwasher safe. - Polar Bottle insulated water bottles are crafted in Colorado to reduce environmental impact and support local economies. Designed to last, each one of our water bottles comes with a lifetime guarantee. - Capacity: 0.71 L / 24 fl oz - Dimensions: 10.5 x 2.75 in. - Material: LDPE, TPU Valve - Weight: 150 g / 5.3 oz

When speed matters, our Breakaway Insulated Bolt bottle delivers a burst of cool hydration quickly. Just grab, squeeze, and drink up without splatter. Engineered to keep liquids cool to the last drop. As cycling enthusiasts, we know a thing or two about power sprints, brutal hills, and relishing the downhill ride. We also know there's nothing better than taking a big swig of cold water, hours after it's poured. So, we built the Breakaway® Insulated bottle for road warriors like us—those who sweat hard, hydrate harder, and demand replenishment. Your liquids will stay cool twice as long, thanks to the Tri-Layer™ insulation and radiant heat reflective technology. Plus, we've re-engineered it to lighten your ride while still delivering simple hydration. The compact and durable design fits most bike cages and includes a high-flow, self-sealing Surge Cap™ for spill-proof transport.

The new Standard in light, reliable inflation! Prestaflator Micro is a superlight CO2 inflation head and more! We've combined technologies to make a head 33% lighter than any other major brand, and provides secure, leak-free connection with the greatest possible inflation control! The Cartridge is the flow control Knob The best way to inflate CO2 is with a variable flow knob. The bigger the knob, the better the flow control. Prestacycle introduces it's revolutionary design – the Cartridge is the Knob! Save weight, size and complexity with our design. Secure, no-loss connection. Prestaflator Micro uses a threaded Presta / Schrader head. Secure attachment with a perfect seal insures you don't loose any CO2. 100% of the cartridge contents will go towards inflation Easy operation You can install the cartridge first, or put the head on the valve first. Prestaflator Micro works perfectly either way. When you screw the cartridge onto the head – NO CO2 will flow. There is no-loss from installing the cartridge. To inflate, Slightly un-screw the cartridge, and inflation begins. The more you unscrew, the faster it flows. Works great – even for seating tubeless tires. If you close the cartridge again, flow stops completely. If you leave the cartridge on, it will retain the contents for an extended period of time. Specifications: - 33% Lighter and smaller than any major brand - The Cartridge is the Knob! - Turn Cartridge (instead of a knob) for precise flow control - Secure Presta / Schrader Threaded head prevents loss - Only 12 grams weight! - Precision Machined alloy for long life - Compatible with CO2Pump for a 48 gram total Pump option! - Compatible with our Compressor Adapter for unlimited inflation!

Profile Design's UCM Universal Computer Mount provides a convenient 25mm long place to mount your computer on your aero bars. It installs without tools, stays put and can be positioned as needed for easily viewing and controlling your computer.

Profile Design's UCM XL Universal Computer Mount provides a convenient 60mm-long place to mount your computer on your aero bars. It installs without tools, stays put and can be positioned as needed for easily viewing and controlling your computer.

Profile Design's CO2 Mounting Bracket is a small, light holder that attaches to any Profile rear-mounted drink system or under any bottle cage. Once in place, the bracket provides a handy place to carry a CO2 refill cartridge for your CO2 inflator (Profile drink system, bottles, CO2 cartridges and inflators sold separately).

Storage strap kit for Profile Design's Rear Mount Carbon Water Bottle Cage - Compatible with standard 7mm saddle rails

Our Trainer Axle is designed to adapt your thru-axle equipped bike to on-wheel trainers, such as a 1up, Blackburn, Cyclops, Kinetic, Tacx, Wahoo, and many others. Our goal is to fit the thru-axle to your bike perfectly to minimize spacers and extra parts, providing a clean, high-performance axle for your bike. Train, warm up, and be race ready and fit for the season. - When it’s time for your race or time to head outside, simply remove your bike from the trainer, remove the drive side axle end and go. Our axle is suitable for use on or off the trainer, indoors or out. - The axle shaft and axle ends are precision CNC-machined from 7075 aluminum and hard-anodized for rugged durability. - No special tools required. Design allows for installation or wheel removal using your standard 5mm hex wrench. - Designed, built, and quality tested in the USA. Proven around the world. Important: Before you order, make sure your specific trainer will accommodate the width of your modern thru-axle-equipped bike. Measure your trainer at the widest setting and measure the outside width of your bike frame. Our the trainer axle ends will extend past your frame on each side.