[Lars K. P.]

My Rotor Kapic drive side crank arm keep loosen despite I use correct torque tighten the crank arm?

Anyone else having the same issue? and how to solve?

Thanks

 

[Lone Rager]

If the arm has been ridden while loose, often times the splines get distorted and as a result the arm will no longer stay tight. This sounds like what happened in you case. Basically, you'll need at least a new crank arm, and maybe a new crank.

 

[Lars K. P.]

Not good news…. The crankset is almost new and it have been the same case since early beginning. I will try to contact my reseller for warranty claim.