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RADBMX.CO.UK  |  BMX General  |  BMX Chat  |  bottom bracket threads....
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Author Topic: bottom bracket threads....  (Read 382 times)

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Offline meticulous

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bottom bracket threads....
« on: September 03, 2013, 07:55 PM »
is the bottom bracket thread on a one piece cranks much bigger than the thread on maxi cross cranks?

ps I don't mean the pcd....

 :-\ :-\
R.I.P  O.M. Far short of the finish line...

Offline Munnyella

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Re: bottom bracket threads....
« Reply #1 on: September 03, 2013, 08:33 PM »
Surely it depends on the spindle?

I've seen 2 set ups, one (generally US BB) is threaded like the BB area on a 1 piece, and then you have the euro BB spindle, with races for bearings.

Been a while though......

MM
Hard + Stylish = Chicks + Beer!!!

Offline meticulous

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Re: bottom bracket threads....
« Reply #2 on: September 04, 2013, 07:04 AM »
that's just what I though until I just tried fitting a one piece crank BB onto the threaded spindle for a 3 piece cranks.... :-\
R.I.P  O.M. Far short of the finish line...

Offline Munnyella

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Re: bottom bracket threads....
« Reply #3 on: September 04, 2013, 07:27 AM »
Is it a different thread? Mongoose cranks had a different TPI on the same diameter spindle.

Or, I have a `small' us BB on a supermarket 16" mini bmx, looks like a US, but isn't!!!

Could it be either of these scenario's ?

MM
Hard + Stylish = Chicks + Beer!!!

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