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Adam_Lock
31-03-2004, 03:18 PM
any body know what gearing 44 mil per rev is on a FT TC3???

48dp

i always get confused when working it out!!

Cheers
burgie
31-03-2004, 03:34 PM
it depends on the diameter of your tyres - you need to measure the diameter of the tyre, and look on a mmpr chart
Adam_Lock
31-03-2004, 03:37 PM
where will i find a mmpr chart???
burgie
31-03-2004, 03:40 PM
your local hobby shop should have one, if they are any good. also, you could try doing a google. sorry I can't be more help, but i don't need to worry about mmpr with my buggies - spikes go, grip goes, get new spikes, grip comes back!
Colin Williams
31-03-2004, 04:56 PM
There is a mmpr calculator on the Bedworth website if you have the tyre diameter you can slot it in then adjust the pinion size until the mmpr reads what you want.

I just had a quick look and assuming a 65mm tyre diameter (think that's somewhere near average), the gear ratio would be 72/39 to get 44mmpr - which seems a bit odd ???

Hope that helps.
Chrisyc
02-04-2004, 08:26 PM
you'd have to use a smaller spur, because 39's dont exist :P

chris
Mike Haswell
02-04-2004, 08:55 PM
You can get a 39, with difficulty, but it would not fit. Suggest a smaller spur. 60/33 would do it.
Chrisyc
03-04-2004, 08:08 AM
mike can you get a 39 in 48 pitch? if so then can you pm me where to get them from? ;D

thanks
chris
Mike Haswell
03-04-2004, 10:02 PM
It was Stateside when I saw them, along with a 50t 64Dp as well - think they were made by Robinson.
CML do them here but only list up to 35t in last years catalogue.