Author Topic: sprockets freewheels (Read 623 times)

rarman1 · « **on:** December 09, 2006, 05:24 PM »

hello fellas,

can anyone tell me if there is a specific reason for choosing certain combinations of sprockets and freewheels, i've been looking through the site but cant work it out in my head, i.e. can you have a 44t sprocket with a 13t freewheel or a 33t sprocket with a 16t freewheel ?

cheers
rob

weston · « **Reply #1 on:** December 09, 2006, 05:43 PM »

you can have any gear ratio, it depends how easy or hard you want to pedal, when you ride a mountain bike or racer you find there are many combo's of gears, some hard & some easy

Rombloke · « **Reply #2 on:** December 09, 2006, 05:55 PM »

you need to end up with what is the equivalent of 44:16
so you need to work to the ratio of 2.75

ie....13(rear)x 2.75=35.75(36 tooth front)

hope this helps

Dave

rarman1 · « **Reply #3 on:** December 09, 2006, 07:10 PM »

thank you dave and weston, sorted

curious does anyone run a different ratio or according to what they ride i.e ramps, race, street, flatland

rob

theRuler · « **Reply #4 on:** December 09, 2006, 07:12 PM »

i run a lower gearing for flatland. something like 32:16 (or 2:1)

and i know some racers run slightly higher gear for more pace on a track with long straights

you cant go far wrong with 44:16 (2.75:1) as a starting point

its like a pint of lager - suits most (but not all)

Rombloke · « **Reply #5 on:** December 09, 2006, 07:44 PM »

yeah sorry forgot to add that 44:16 or its equivalant is just the average gearing run by most bmxers

Dave

rarman1 · « **Reply #6 on:** December 09, 2006, 08:11 PM »

cool, always better to know than not

nice one fellas

rob

digitaltransfer · « **Reply #7 on:** December 09, 2006, 10:27 PM »

For racers 44 :16 was the norm depending on the track length and the straights, I was always what the old skool would class as a pusher ( no rude remarks now) higher front gear 44 45 46 were as some were classed as spinners low gears < 44 43 42 41 40 39 all on 16 15 17 Rear wheel it really depends on your style of riding what suits you best.

Just got back in to racing forgot all this checked out the bike set up which was on a 41 17 on a cruisrer

no good for me changed it to a 42 43 and 44 17 which helped me know end, well a little felt like I was getting some where with less effort

hope this helps !