Bike and e-bike adapters

Installing a larger disc or changing the mount

A brake adapter connects the caliper to the frame or fork. The Post Mount adapters from Shimano, Alhonga, or Brakco elevate the caliper to fit a larger disc, for example, from one hundred and sixty to one hundred and eighty millimetres at the front, or convert an international mount to Post Mount. On the hub side, the Center Lock adapter from XLC or Shimano accommodates a six-bolt disc on a splined hub and is tightened with a ring, just like a standard Center Lock disc. Each caliper adapter corresponds to a specific gap between two disc sizes, indicated on the part.

The other components

Components also come in various types:

• Spacers.
• Stems.
• Washers.
• Clamps.
• Accessories.
• Handlebars.

All components are grouped on the peripheral components page.

Height adapters for stems and home trainer adapters

The height adapters XLC and Ergotec attach to the fork steerer, above the headset, and hold the stem higher: the handlebars gain several centimetres, giving a more upright position that relieves the back and wrists, without replacing the fork. For home training, the Elite thru-axle adapter allows you to mount a bike that doesn't use a quick release on a Suito home trainer. The basic Wahoo Kickr Climb securely fixes the fork to the brand’s slope simulator, which raises or lowers the front of the bike to mimic ascents and descents.

Electric bike, phone and child seat

On electric bikes equipped with the Shimano Steps system, the brand’s charging and battery adapters connect the charger, battery, and bike. The Quad Lock adapter for flat handlebars fixes the brand’s phone mount to a city or MTB handlebar, allowing you to follow a route. For family use, the Bobike adapter allows you to install the brand’s child seat on a frame that doesn't accept it by standard. Finally, the Contec Fastair valve adapter lets you use the same pump head on different types of valves, handy when family bikes don’t share the same standard.

Special offers

Good deals can also be found in the special offers, promotions, clearance, sales, and Black Friday. The new arrivals feature the latest collections, and items shipped in 24h are prepared and dispatched within 24 hours. The year’s highlights follow a steady order: the Black Friday at the end of autumn, the holiday season, the winter sales, the French Days in spring, then summer sales and back to school.

Frequently asked questions

What is a handlebar adapter ring for?

It allows you to fit an accessory or stem designed for a larger diameter onto a thinner handlebar, for example from thirty-one point eight to twenty-five point four millimetres. It fills the gap and prevents the part from turning.

Center Lock or six-bolt disc: which one to choose?

The Center Lock mounts faster with a simple ring, while the six-bolt fixing remains the most common among disc manufacturers. The choice mainly depends on your wheel hub.

How to attach a trailer to a bike?

The hitch most often fixes to the rear wheel axle or on the frame base. A hitch axle adapter, chosen according to your quick release, solid axle, or thru-axle, accepts the trailer without modifying the bike.

Do you need a specific tool to install a brake adapter?

A hex key and a torque wrench are sufficient for a Post Mount adapter; you tighten to the specified torque and apply thread-locking compound if the instructions suggest it. A Center Lock adapter requires the appropriate ring tool.

How to connect a child’s bike to an adult's bike?

A towing bar connects the adult's seat post to the child’s bike's head tube. It fixes with adapters specific to each bike and folds along the frame when the child rides alone.