i think
bmx and mb front hubs are both 110mm
-bmx rear is 110mm
-but mb's are 135mm
-but threaded earlier non cassete style rear hubs are in fact 110, but have a spcer in the spindle at 25mm, for clearing the cog stack
-newer cassette style rear hubs on the other hand, have a driver whicj is set at the 'if you like' 25mm so it is a constant 135mm
it is also worth noting - i think, that earlier cassette rear hubs have the bearing still in the hub, on the cog side
-but later, they put the bearing at the driver end
-make sense???
-anyhoo, shimano have just bought out a dxr bmx set - hubs etc that use a single speed 110mm cassette
-and seeing as that everyone else copies the pawwl and rathchet style of shimano, these single speed drivers maybe fitable to other brands 135's in order 'for example' to create a 14 spoke rolf primo rear hub, with single speed drive, also capable of disc brake mounting
-this is what i need anyway!!!!!!!
-ps, mountain bike front spindle - quick release use a 9mm spindle, whereas the rears are always 10mm-ie if you need a new hollow spindle for a bike, dont get a front spindle as you'll never get the wheel nuts, -plus of course it will be too short - get a rear one!!
-don't quote me tho!!!
-but you may be able to fit a single speed cassete drive from profile/whoever to some other hub!
-bb spindles due to single twin and triple chainsets, spindles differ in width from i think 112mm then up and up again, on old school crank arms, the arms 'usually have on built in offset, ie they are not s shaped-to clear the rear chain stay, ie i once fitted ta cranks to a pk ripper, and the arms hit the frame-neede a wider spindle
-old school us bbs have a threade spindle to take the race-and if loose ball thats it -beqaring to cup
-but on sealed ones i think thet just have a shoulder for the seled bearing to sit in
-modern euro bb's are all sealed catridge styles now, available square or octalink - 8 splines, these do up using a special tool to engage the slots in the brearin cups , which then thread into the frame-the bearings-seald just sit in these
-cripes - yes i am bored - waiting for a delivery!!!
-hope i havn't told any porkies
