slippy brakes
my brake pads are to slippy.
yesterday i use a friend pads and it was slippy on my wheels also, and my pads was ok on his bike.
It could be problem with my rims? somebody told me that i can use a sand paper on it but i try it on one side of the mavic wheel and it appear to be the same slippy brake.
What do you suggest?
Do i need to clean the wheel with something? or use more sand paper? or simply change wheels?
Help