Sprocket-Freewheel

[onza rip 29]

hello i am getting the new 2010 Onza comp and was just wondering if a 12 tooth fixed sprocket and a 18 tooth freewheel is suitable and wondering how hard the gear is ?

[Franksx2005]

hello i am getting the new 2010 Onza comp and was just wondering if a 12 tooth fixed sprocket and a 18 tooth freewheel is suitable and wondering how hard the gear is ?

thats the norm gear ratio for a mod mate, feels perfect.

[onza rip 29]

thats the norm gear ratio for a mod mate, feels perfect.

thanks was just wondering as am building up the bike

[Dave!]

Just divide the front by the rear to determine if the gearing will be too hard/easy.....i.e 18/12=1.5.

So every turn of the cranks turns the wheel 1.5 times.

Where as my bmx has 28-9 ratio.....so thats like 3.1, twice as hard to pedal.

Just comes down to personal preference I guess.

But as said above 18-12 is what most people use.

Edited December 31, 2010 by Dave!

[onza rip 29]

Just divide the front by the rear to determine if the gearing will be to hard/easy.....i.e 18/12=1.5.

So every turn of the cranks turns the wheel 1.5 times.

Where as my bmx has 28-9 ratio.....so thats like 3.1, twice as hard to pedal.

Just comes down to personal preference I guess.

But as said above 18-12 is what most people use.

Brilliant thats real useful thanks mate i will bear all that in mind thanks

[gurider2010]

A 18t freewheel and a 12t sprocket is the usual gear ratio. At the minute i am running a 18t freewheel and 14t rear sprocket , to me the differance between the two is hard to tell , anything over 14t sprocket would be weird.