Technical & Reference Section > Tech and Restoration

Allen bolt sizes?

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skubs:
Hi
Coulds someone let me now the standard size of allem bolts for the majority of stems and seat clamps for old school bikes?
Is it M10, M20 ?

cheers

LXIX:
i doubt very much its a M2o  they are massive twice the sise of your axil threads :LolLolLolLol:

theRuler:
M8 i think mate

skubs:
thanks ruler - helpful as ever

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