Author Topic: TPI On Profile Racing Cranks (Read 768 times)

Dannywhac · « **on:** August 26, 2011, 03:35 PM »

Hi all - anyone know the TPI for Profile Racing cranks - got an axle that the threads are a little bit damaged (fixable though without drilling larger) and need to get a tap to do the job - ta in advance

kuwahero · « **Reply #1 on:** August 26, 2011, 03:40 PM »

They are 3/8 X 24 UNF have done this myself in the past

Dannywhac · « **Reply #2 on:** August 26, 2011, 03:47 PM »

Quote from: kuwahero on August 26, 2011, 03:40 PM

They are 3/8 X 24 UNF have done this myself in the past

Cheers fella

Peter J · « **Reply #3 on:** August 26, 2011, 03:50 PM »

Buy

This:

http://www.ebay.co.uk/itm/GOLIATH-3-8-24-UNF-THREAD-TAP-SET-/170687414456?pt=LH_DefaultDomain_3&hash=item27bdc340b8

and this:

http://www.ebay.co.uk/itm/M3-M12-TAP-WRENCH-HOLDER-USE-TAPS-3-12MM-/280727432112?pt=UK_Home_Garden_PowerTools_SM&hash=item415ca8abb0

Job done

kuwahero · « **Reply #4 on:** August 26, 2011, 03:53 PM »

I still have tap set from when I did mine if you want me to try fixing it.

Dannywhac · « **Reply #5 on:** August 26, 2011, 03:56 PM »

Quote from: kuwahero on August 26, 2011, 03:53 PM

I still have tap set from when I did mine if you want me to try fixing it.

Cheers fella - just need the tap as I've got another axle needs doing, so might as well buy the tap

john4130 · « **Reply #6 on:** August 26, 2011, 05:06 PM »

i thought the profile axle was a 3/8" 26tpi. i remember snapping a bolt years ago and using a piece of a wheel axle with a nut on it to replace it. suppose it could have been a 24 tpi axle tho. they were the same thread as the old g sport hub bolts too.