Rotor crank arm won’t fit the axle

[jencvo]

I’ve been trying to help a friend install a Rotor 3D24 crankset earlier. He hasn’t had the thing on the bike I’m forever. Anyhow when we tried putting it together, the left crank arm barely fits on the axle. I tried jamming it and it only made it by a few millimeters. The thread doesn’t appear damaged at all, I applied grease to it as well. I removed the bolt completely from the crank arm but it still wouldn’t move at all.

Any suggestions?





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[goodboyr]

You are not supposed to remove the bolt completely. When you back it out it spreads the gap, but if you remove it completely you can damage the arm and/or split the bolt.
It's called a "DTT" bolt. It has two different threads.
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[jfranci3]

The bolt can spread the arm a bit.

[jencvo]

Thank you both!!

[goodboyr]

https://velotechservices.co.uk/shop/vcl ... 7386000657



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