Max torque on splined cranks?

skilewis74 · November 15, 2006, 9:32pm

The title says it. My uni is a 2006 Torker DX.

Also: Using the search I saw 40 ft/lbs was recomended for cotterless cranks. My LBS said it was 60 ft/lbs. Which is right?

skrobo · November 15, 2006, 9:35pm

84.576

it will handle 100 i think, go w/ 60, i have put 100 and they came loose, use some loc-tite, and make sure the cranks are on all the way.

skilewis74 · November 15, 2006, 9:50pm

So was that 84.576 ft/lbs for splined and 60 for cotterless?

ntappin · November 16, 2006, 4:10am

he said to use 60 for splined. Even 40 with loctite is perfectly fine.

vicuniclub · November 16, 2006, 8:53am

i know my DM ATU hub can take 400 foot pounds of torque… seems my cranks can’t though… as i have broken two sets

skilewis74 · November 16, 2006, 4:48pm

At 45 ft/lbs w/ blue loctite the left crank is loosening. (It always seems to be the left crank ).

I’ll gradually increase the torque, up to 60, untill I no longer have problems.

Thanks.

ntappin · November 16, 2006, 5:16pm

I had heard about many people overtightening their bearing caps so when my friend asked me to help him put his uni together we put everything to exact spec and its now been about four months and I don’t think anything has gone wrong with it, but he doesn’t ride it that hard so maybe its not so bad to have a bit more torque.