Parts & Accessories

Purchase our Kid Trailer axle for your bike. and share your stoke for cycling with your kids. Simplify your life by allowing quick and secure attachment of your trailer to your best and favorite bike. Enjoy the adventure. Robert Axles for Kid Trailers are designed specifically to fit your 12mm thru-axle bike and allow attachment of any hitch-mounted trailer. These fit any trailer that has two wheels and a single point of attachment to the axle. This includes all the two-wheeled child, pet, and cargo trailers such as Thule, Chariot, Burley, Instep, Carry Freedom, and many more. - This axle is specifically designed to fit the 142/148 hub standard Surly MDS or Gnot Boost bikes. - The derailleur end of our axle is internally threaded and will use the bolt from your stock Surly axle. The disc brake side of our axle has an engineered mount for your trailer hitch. That mount has been permanently attached to the axle. - The axle shaft and axle end are precision CNC-machined. - The axle shaft is 7075 aluminum and hard black-anodized for rugged durability. - The stainless steel axle end allows for mounting of the hitch provided with your trailer. The threads are M10x1 (metric). - Hardware for attachment of the hitch is included; the hitch, itself, is not. - No special tools required. Design allows for wheel installation and removal using your standard 5mm hex wrench. - Designed, built, and quality tested in the USA. Proven around the world.

These bobbins are made by the Robert Axle Project and are identical to the bobbins that came with your original BOB skewer. Slide them on your axle ends to complete your Robert Axle thru axle for BOB Trailer. - Sold in pairs - Manufactured from 303 Stainless Steel - Includes stainless steel hardware for attaching to axle

After years of mountain biking with thru-axles with bulky handles that seemed to strike every trailside obstacle, we needed a better option. Our Lightning Bolt-On thru axles offer a high-quality, simple, lightweight alternative to that bulky handle. Available in a range of sizes that fit both front and rear wheels on all types of thru-axle-equipped bikes. - Lightning is Better—Our front and rear Lightning Bolt-On axles offer a stronger, more durable, lower profile, and lighter weight option to replace your stock thru-axles. - Low Profile—No more bulky handles to strike trail obstacles. Aerodynamic design. - Light Weight—Our axles are internally bored to remove unnecessary material without compromising strength. - Easy to install—Our matching front and rear Lightning Bolt-On Axles require only a standard 6mm hex wrench for easy installation and removal. - Better Tolerances—Manufactured in the USA to the tightest tolerances using aerospace materials and CNC manufacturing. No longer will your axle loosen while riding.

After years of mountain biking with thru-axles with bulky handles that seemed to strike every trailside obstacle, we needed a better option. Our Lightning Bolt-On thru axles offer a high-quality, simple, lightweight alternative to that bulky handle. This axle replaces the R.A.T. axle found on all Cervelo R.A.T.-equipped bikes. In addition to this axle, we include our replacement derailleur hanger with traditional threads. This axle, combined with the replacement derailleur hanger, will provide a complete, threaded thru-axle system. Our derailleur hanger matches the geometry and construction of the stock derailleur hanger in every way for crisp shifting performance. - This axle is designed specifically to replace a rear R.A.T. axle on a Cervelo bike with included derailleur hanger. - Lightning is Better—Our front and rear Lightning Bolt-On axles offer a stronger, more durable, lower profile, and lighter weight option to replace your stock thru-axles. - Low Profile—No more bulky handles to strike trail obstacles. Aerodynamic design. - Light Weight—Our axles are internally bored to remove unnecessary material without compromising strength. Our axle weighs 36 grams. Our axle and hanger weigh a combined 54 grams. Front and rear, our axle system saves a combined 58 grams relative to stock parts. - Easy to install—Our matching front and rear Lightning Bolt-On Axles require only a standard 6mm hex wrench for easy installation and removal. - Better Tolerances—Manufactured in the USA to the tightest tolerances using aerospace materials and CNC manufacturing. No longer will your axle loosen while riding.

After years of mountain biking with thru-axles with bulky handles that seemed to strike every trailside obstacle, we needed a better option. Our Lightning Bolt-On thru axles offer a high-quality, simple, lightweight alternative to that bulky handle. Available in a range of sizes that fit both front and rear wheels on all types of thru-axle-equipped bikes. - Be free—No longer are you constrained by the proprietary Focus R.A.T. axle. Simply replace the R.A.T. nut with our threaded nut and thru axle. A complete solution for a standard threaded axle for your R.A.T.-equipped bike. - Lightning is Better—Our front and rear Lightning Bolt-On axles offer a stronger, more durable, lower profile, and lighter weight option to replace your stock thru-axles. - Low Profile—No more bulky handles to strike trail obstacles. Aerodynamic design. - Light Weight—Our axles are internally bored to remove unnecessary material without compromising strength. - Easy to install—Our matching front and rear Lightning Bolt-On Axles require only a standard 6mm hex wrench for easy installation and removal. - Better Tolerances—Manufactured in the USA to the tightest tolerances using aerospace materials and CNC manufacturing. No longer will your axle loosen while riding.

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.

Our Trainer Axle is designed to adapt your Surly MDS/Gnot Boost 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. - This axle is for Surly bikes with the MDS/Gnot Boost system. - 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 wheel installation or removal using your standard 5 mm hex wrench. - Designed, built, and quality tested in the USA. Proven around the world.

Classic & Comp Road Wheels Front Axle Adapter.

Authentic Ritchey hub conversion kit for mountain bike hubs. - Convert 15mm (OD) alloy axle to QR9 ID - Quick release skewer not included

Designed to be stiff and durable enough to meet the demands of modern mountain bike riding, the Ritchey WCS BOOST fork thru-axle offers confidence and control for whatever kind of trails you're into. - Type: thru-axle - Material: 7075 Alloy - Axle Length: 135mm - Diameter: 15mm - Thread diameter: M15 - Thread pitch: 1.2mm - Head: hex 6mm - Weight: 63g - Color: black

Authentic replacement freehub for Ritchey V2 Apex and Zeta Phantom Flange road wheels. - For 17mm axle - SRAM XDR

Authentic replacement freehub body for Ritchey Comp and Classic Zeta wheels. - Available for: SRAM XDR

Hub WCS Disc Rear 148mm Boost Conversion/Service Kit - Authentic Ritchey axle conversion kits for road disc wheels

Authentic service axle and end cap kits for Ritchey wheels and hubs. - Replacement axle for non-boost 2-piece disc hubs - Includes axle and end caps - No tools necessary

Conversion kits and caps sets compatible with Ritchey front hubs. - For any Ritchey 15mm front thru-axle hub - Replacement endcap for Phantom Flange front hubs - Converts from 15mm TA to 9mm QR

Replacement thru-axles for Ritchey frames.

Rear Wheel Axle 12x142mm.

Lightweight and easy to install, there are Ritchey rim strips for all wheel sizes and types. - Easily snaps over your rims - Stretchy, tightly woven material provides a close fit and protects from abrasion - Sold as a pair - Not for tubeless set up

Authentic Ritchey hub conversion kit for mountain bike hubs. - Convert to 15mm thru-axle - End cap conversion for Vantage and Trail non 2-piece V2 hubs for 15mm thru axle

Authentic Ritchey hub conversion kit for mountain bike hubs. - End cap conversion for Vantage and Trail non 2-piece V2 front hubs - Convert to 20mm thru-axle

Authentic Ritchey hub conversion kit for mountain bike hubs.\ - Convert 15mm (OD) alloy axle to use a 9mm thru-axle - End cap conversion for Vantage and Trail non 2-piece V2 hubs for QR - Axle not included

Authentic replacement freehub body for Ritchey V2 Apex and Zeta Phantom Flange road wheels - 11-speed Shimano

Replacement XD driver freehub body for all road 2-piece Ritchey hubs. - SRAM XD - No tools necessary

Replacement XD driver freehub body for Trail and Vantage 2-piece Ritchey hubs. - SRAM XD

Replacement freehub body for Vantage and Trail non 2-piece V2 Ritchey hubs. - Shimano Mountain 10-speed

Replacement axle and end cap for 2-piece rear disc road hubs - Retains original 12mm thru-axle set-up

Authentic service bearing kit for Ritchey mountain bike and road wheels. - Bearing service kit for Phantom Flange rear hubs Includes #6903 (x1pc) & #699 (x1pc)

Authentic service bearing kit for Ritchey mountain bike and road wheels. - Bearing service kit for 2-piece rear road hubs

Authentic service bearing kit for Ritchey mountain bike wheels. - Replacement bearings for Vantage V1 non-2pc hubs

Pawl and spring service kit for all Ritchey wheels and hubs V4 and up.