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On removing I don’t need a puller and during a ride it works loose , help what’s wrong?
They need to be done tighter than you think. My RaceFace cranks used to do the same thing until I tightened them harder than anything else I own (probably). They've been fine since.
My experience with RF cranks was after they loosened once no amount of threadlock or tightening would keep them from doing it again.
I don't know if it's the splines that wear causing precession or something else but it's not something I've ever experienced with Shimano (or SRAM who use a similar interface to RF).
The torque setting on the crank bolt (assuming these are the Cinch ones) is pretty high. As above, once the splines are damaged you are not going to have much joy. Mine have been solid for 9 months so far..
I've two AEffect cranksets: one on the fat bike that attaches via Allen key in the end cap and comes off by using a crank puller; and one on the Spearfish that attaches and is removed by an Allen key in the end cap.
Never had a problem with the former, just keep turning until there's significant resistance then a sharp tug to set it. The latter needs a hell of a lot of oomph to make sure it doesn't come undone - talking standing one foot on pedal and one on shaft of Allen key then bouncing sort of torque - I think the manual talks of 70+Nm of torque.
Neither of my sets come loose. I do fit them with a torque wrench though.
The fitting instructions on, at least the older, Race Face cranks was to tighten the cap until it won't turn any more. Somewhere around the "I'm going strip the thread if I carry on much more-tight"
Had a set for over 2 years. Never came loose. Always tighten to spec with torque wrench, 60Nm iirc. No threadlock. As said if the spines are damaged through being loose you might have trouble getting they to stay tight, but give it a go at the right torque, it is quite tight.
Mine did this when I first got the bike (Cube reaction). As mentioned, you need to torque them a lot more than you think - I mean A LOT more.
Why does mine come off without a puller ?
Why does mine come off without a puller ?
As I said, there seem to be two securing mechanisms. One which needs a crank puller and one which just uses an Allen Key. It's the latter that needs tightening until you think you are going to break everything.
There are two removal mechanism. One is puller (crank secured by a normal bolt). The other is a self extracting crank bolt. Iirc they are interchangeable.