So I'm trying to figure out if I would have any Issues going from a
BB 68 X 110.5mm ISO to a 68 X 113mm JIS
This is on a 2011 Jamis Earth Cruiser 3 (I removed the 3-speed)
I’m converting it to single speed. I want to change the 44T original crankset with a 46T or larger 48T max. In so doing most if not all the single speed cranksets I have seen and like require JIS and not ISO square taper. I'm a bit perplexed as the last time I messed with any bottom bracket was 40+ years ago on a Stingray, Cups and Ball bearings... Needless to say things have really changed.
Any info would be greatly appreciated..!!