Modifying the parts of your bicycle in any way can make it unsafe. This includes altering existing parts, adding parts or accessories, or swapping out original parts for non-original ones. Any other modification of your frame, fork, or components means that your bicycle no longer meets our specifications and will void the bicycle's warranty.
There are too many modifications to list them all, but here are a few examples of unauthorized, unsafe modifications:
• Removing paint can weaken the frame because some bicycle frames have special surface treatments which add strength.
• Removing the redundant wheel retention tabs on fork tips could make your bicycle less safe.
• Adding spacers, washers, etc. to a wheel quick-release device decreases the thread engagement of the adjusting nut.
• Installing a part not authorized for your bike can damage other parts. For example, a stem not approved for a carbon steerer tube can crush the steerer tube.
• Installing a motor or other drive system adds weight to the bike and causes stress to the parts. Adding non-approved parts will void the warranty and make the product unsafe.
⚠ WARNING: Any unapproved modification can make your frame, fork, or part unsafe. For your safety, do not sand, drill, file, remove secondary retention devices, install incompatible forks, or make other unapproved modifications. A frame, fork, or component with unapproved modifications may decrease your control and cause you to fall. Before you modify or add an accessory to your bicycle, consult your retailer to confirm that it is compatible and safe.