Technical & Reference Section > Tech and Restoration

profile crank help needed

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2020mad:
help, still building my bike for epic.
trying to fit profile cranks to my bike only problem is if i put washers on crank arms the crank tightens up and won,t turn . but if i take a washer out the arms catch rear of frame ... please help been trying to get this ready all week to take tommorow.

billstup:
There should be a shim in between the bearings in the bottom bracket, so when you tighten them up they don`t get tight, if you know what I mean  :daumenhoch:

2020mad:
thanks, will try but i think i,ve been sold a scrap set as cannot tighten arms any where near enough with crank tool so they seat properly. they had these washers on when i bought frame and cranks :(

diesel:
have a look on the custom riders website they sell all the parts you will need.

ORB:
OK

Strip em down and start afresh.

1st, put in one side of the BB, whack her in with a big ole 'ammer, then drop the steel tube in and put the spindle through the bearing that is installed, but only enough so that it dont pertrude the side, make sure the tube slots over the spindle,

bray in the other bearing.


slot the spindle through.


no washers but build up dry and see how much room you got when all tightened up, calculate how many washers you need.

take to bits and put the washers on


tighten up again.


done.

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