CycleOps Magnus Indoor Trainer

The CycleOps Magnus is highly adaptable and supports standard quick-release axles of 120mm, 130mm, and 135mm. For thru-axle bikes, it is compatible with 142x12mm and 148x12mm standards, though you may need a separate thru-axle adapter depending on your bike's specific configuration.

Yes, calibration is required to ensure accurate power readings. You should perform a spin-down calibration after the unit has warmed up for about 10 minutes, and re-calibrate whenever you move the trainer or change the tire pressure.

The Magnus operates at approximately 69 decibels. While it is not silent, it is generally quiet enough for use in a shared home environment, though the noise level will increase slightly depending on your tire tread and the speed at which you are riding.

Absolutely. Because it features integrated ANT+ FE-C and Bluetooth Smart connectivity, the Magnus pairs seamlessly with popular virtual training platforms like Zwift, TrainerRoad, and Rouvy to automatically adjust resistance based on the virtual terrain.

The clutch knob is designed to ensure consistent roller-to-tire tension every time you set up your bike. It clicks when the correct tension is reached, preventing tire slippage and ensuring your power data remains consistent from ride to ride.

Yes, the Magnus accommodates a wide range of wheel sizes, including 26-inch, 27-inch, 29-inch, 650b, and 700c. If you are using a mountain bike with knobby tires, we highly recommend swapping to a smooth, trainer-specific tire to reduce noise and prevent excessive wear.