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Hi all,
I am having a really strange issue with my SR Suntour AXON-WERX forks on my 29er. I have tried contacting Suntour support, but it is quite a old fork and they could not help much.
Basically, the problem is that when the QLOC2 axle is tightened, the wheel won't spin freely at all. I should add that I am not over-tightening the axle.
I took it to my local bike shop and they replaced the bearings in the wheel thinking that was the cause of the issue. However, after a couple of rides the problem was back. I tried a brand new front wheel, but it was still the same! I also tried cleaning and re-greasing the axle to no avail.
What I then noticed is that the axle was becoming quite difficult to insert and remove from the dropouts. There appeared to be some friction marks on the QLOC2 axle where it was rubbing, so I tried a new one but still no luck.
Something I read on a forum mentioned using a very fine wet and dry sandpaper to rub the inside of the dropouts. I tried this and it appeared to improve the situation for a while. However, after being sat in the shed overnight it the wheel had seized up yet again and I could hardly remove the axle.
Has anyone else had an issue like this? It is a really odd one and it is causing me a real headache.
If anyone has any suggestions I would really appreciate it.
I am not a fan of the Qloc system! I had to resort to using the shell of an old qloc axle to hammer out the replacement one on my last set of Aions. Never had the wheel sieze though, so not sure why that would be, sorry. Have you tried greasing the axle? Could that help prevent siezing?
Sounds like the axle/dropouts are not aligned. The wheel spinning is not a factor of the forks unless there's some twisting going on as the 'spinning' part of the wheel is isolated from the forks by the end caps, and so it is probably be the axle alignment relative to the internal faces of the dropouts causing the bearings to be running on one edge of their internal faces or the other to create the drag.
I assume you've tried removing the brake caliper to check that the brakes aren't dragging due to the forks flexing when everything is tightened up?
What Hols2 said.