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BB/crankarm woe

frankspencer1979frankspencer1979 Posts: 525
edited November 2013 in MTB workshop & tech
I have a Truvativ ruktion chain set with a single ring fitted ... -prod52150

And this BB TRUVATIV Bottom Bracket Howitzer XR 68/73 catenary 51mm

It's a 68mm shell so I have the correct spacers in place.

I don't seem to be able to push the crank arms far enough on to the spindle, so there's lateral movement in the crank assembly i.e. the whole thing can shift left to right through the BB.

I don't understand and don't know what to do now. I guess I've got the wrong parts?


  • Give it a tap or two with a rubber mallet to ensure it is in as far as poss then re-tighten?
  • I have whacked them and tried tightening them with the crank bolt hoping that would pull the cranks on, but no joy. Am I just not trying hard enough?
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