Lower Fork Yoke Pinch Bolt

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Lower Fork Yoke Pinch Bolt

Postby Martin.S » Mon Jun 10, 2019 9:28 pm

Could anyone tell me the length of the 3/8 BSF allen pinch bolt on the lower fork yoke on the 1 1/8th forks - part number 018649.

I screwed in one of the ones I was given and it was too short and just pulled the first couple of threads in the yoke.


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Martin

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Re: Lower Fork Yoke Pinch Bolt

Postby cbranni » Tue Jun 11, 2019 7:47 am

Mine are one inch long.

Colin
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Re: Lower Fork Yoke Pinch Bolt

Postby Martin.S » Tue Jun 11, 2019 9:29 am

Yes these ones I have are 1" long and they are too short.

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Re: Lower Fork Yoke Pinch Bolt

Postby cbranni » Tue Jun 11, 2019 9:51 am

I agree with you the hole is deep enough for an inch and half bolt but it may need tapping out further.

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Re: Lower Fork Yoke Pinch Bolt

Postby Martin.S » Fri Jun 14, 2019 11:51 am

I bought some 3/8 x 3" unc allen bots in stainless - these had an 1 1/2" of plain shank on which I cut a BSF thread. I finished the length off at 1 7/16" and they work a treat.
I don't understand why 1" bolts are supplied as the thread contact is so minimal.
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