newbie question about threaded open-bearing bottom bracket axles
Hi, I'm new here and somewhat out of my depth, so please don't slate me.
I am attempting to transfer the parts of my cheapo full-suspension mountain bike to a new, lighter frame.
When I removed the bottom bracket I found that it was an old open bearing type, consisting of just an axle and two bearing cups.
Also at the end of the square taper it has a threaded section which apparently is only found on childrens or cheap bikes (like mine
). The only reference I could find to this sort of axle was here
I want to fit a new cartridge bottom bracket to my new bike but I dont know what dimensions I need to work with my chainset.
The old axle was 146.5 mm end to end, but obviously this is of no use. The distance between the ends of the two square tapers is 125.5 but the only likely replacements I can find are 122.5 or 127.5.
Would either of these replacements work or do I need to buy a new chainset aswell?
Thanks to anyone who can help!