Whats the advantage and disadvantage on the rim drive trainer?
Advantage is no wear the tire, disadvantages are slippage and louder noise Rim drive trainer system doesn’t touch the tire at all, so the biggest advantage on this system is “No tire wear”. We can say you can use rim drive trainer on a wheel without tire! This feature allows you to mount an MTB with knobby tire without replacing the tire or the whole rear wheel for expecting smooth training. And in case of using with a road bike, you don’t need to worry about the tire even on the warming up before race. The disadvantages on rim drive are; 1) Temporally slippage and jerky pedal feel because the roller drives the slippery rim side wall, especially at the time of strong pedaling 2) Narrower adjustability of resistance control due to its magnet mechanism In addition, rim drive uses a belt to transfer the rotation from wheel to Mag unit and it occurs belt driving noise, so it’s generally a little noisier than tire drive model.