Hi Guys,

I am not quite sure about ospw. As I know, ospw suppose to be helping on the climbing but my question is how it helps? Some saying giving extra gear ratio, some saying pedalling at lower power needed at the same gear ratio comparing to normal pulley.

Am I understand ospw correctly:

Example
1. Normal pulley: gear at 53x11, cadence 90, power is 200, speed will be 30kmp.

2. Ospw pulley: gear 53x11, cadence 90, power is 199, speed will be 30kmph?