I have one of those generic "Bolt" Walmart bicycles; I don't really know what choices I have as far as gear cassettes?
- The tires are inflated to 35 PSI; they are both kevlar banded tires
- it is a mountain bike
- the seat is a slight bit higher than my waist level when I stand up next to the bicycle
- the chain is well oiled
- I think the derailleur is a lower end Shimano brand
PS I always thought it was the ratio between the front gear and the rear gear that determined the revolutions per minute you can pedal?
I know the buses on my campus have a speed limit of 20-25 MPH; even if I pedal with all my might I cannot catch up to them (there comes a point where I am feeling the gears turn as fast as possible and even if I pedal faster the bike doesn't go much faster)
the only time where I know I can go up to 30 MPH is going down a steep hill; at this point even if I pedal really really fast there is not too much change to the bicycle speed.
thanks for your help
Last edited by Garcon; 07-01-11 at 08:36 AM.
Reason: more info