Posted by Chris Case [162.158.90.69] on Thursday, September 21, 2023 at 00:07:18 :
In Reply to: Another tid bit: 100rpm at cable = 60mph on ALL speedos posted by Chris Case [162.158.91.39] on Wednesday, September 20, 2023 at 23:59:50 :
Just work the formula backwards, find the ratio that gives 100 rpm at 60mph with your tires/rear end.
I believe the gears are pretty universal, but the pinion I bought from eBay had a larger OD that had to be turned down. Get the bushing/mount with it.