Since a rider's and the bicycle's weight cannot change
Efficient Gearing
Without an efficient gear system, your aerodynamically designed carbon bike wheel will not be of much use. This is because the power you input on the bicycle crank would be lost through an inefficient gear train. Hence, the wheels will receive very little thrust force to accelerate or speed up the bicycle. According to Human Kinetics, an efficient gear train transmission achieves between 95% and 98% more efficiency under power inputs ranging from 0.13 hp to 0.54 hp. It goes without saying, that such gear wheels are the best choice for your bike.
However, there are various rider-related aspects that must be improved in order to make maximum use of an efficient gear train. These aspects include:
Faster riding speeds for better gear train efficiency: Based on a 2001 research by Kyle and Berto, it was discovered that efficiency of gear trains generally increase with higher loads. This is because residual chain and bearing friction levels increase at much lower rates compared to the increasing load. Therefore, there would be much less losses due to friction on the power input as the load increases. Since a rider's and the bicycle's weight cannot change, increased load on the gear transmission is achieved from a faster push during high speed riding.
