Why Temperature Matters
Carbon fiber products can be sensitive to heat exposure. The resin that binds the carbon fibers can soften when heated past a certain threshold known as the glass transition temperature (Tg). This temperature varies depending on the resin system used in your wheelset.
If your wheels exceed the glass transition temperature, they can soften or deform under tire pressure and spoke tension. This has the potential to compromise the integrity of your wheel.
Common Heat Sources
- Vehicle Exhaust – most common cause of heat-related damage
- Heat guns, hair dryers, or space heaters
- Open flames
- Enclosed spaces in hot environments and direct sunlight
Safety Guidelines
During transport, ensure your wheels are sufficiently protected from your vehicle’s exhaust. We recommend you maintain at least 18 inches (45 cm) of horizontal clearance and 8 (20 cm) inches of vertical clearance (above) your vehicle’s exhaust. If needed, you can use a hitch extension, hitch riser, or exhaust deflector to protect your wheels.
It is recommended to avoid leaving your car idle for extended periods of time with your bike mounted on the hitch rack/tailgate.
If You Suspect Heat Damage
If you have wheels with suspected heat damage, submit a support request with our customer care team. Please be prepared to share photos, serial number, and proof of purchase.