Just put together my Stanton and felt a rocking from the wheel as though the bearings were loose. On closer inspection the axle is a slightly loose fit in the hub (Pro 4), is this normal with this set up (only had QR before)? I would have thought the axle would pull in the frame to clamp the hub and eliminate any wobble.
Does the cassette work properly, ie have you remembered the washer/spacer?
Yep, the cassette seems fine. I put the spacer in and I can't feel any rocking in the cassette when the wheel is out of the frame. With the axle being held by the dropouts would the spacer cause this even if omitted? I'm sure I've missed something obvious.
Check the axle adaptor caps are on the correct side, silver one on the drive side, black on the rotor side.
Funnily enough i have a wheel on a 27.5 x 15mm front that does this too, but can't work out why. Just a little bit of free play for some unknown reason.
Thanks all, adaptor caps are correct. Bumping for the morning crowd.
I would have thought the axle would pull in the frame to clamp the hub and eliminate any wobble.
I've had a couple of bikes that had a mil or two of play until the axle was properly nipped up. Depends on how rigid the rear end is though.
IANAEngineer but I have had this before and had it explained to me by someone smart.
You are making the assumption that the axle acts in shear and supports the wheel/hub and hence there should be no movement.
However the axle, from the hubs point of view, just acts to tension the hub between the drop outs and it is held there by friction, similar to suspension bearings etc.
There has to be some gap (clearance, I looked it up) between the axle and the hub otherwise you would not be able to push it in.
My problem was that even with the axle tightened up there was play on a brand new wheel. This was caused by a screw on end cap on the hub not being tightened up enough and as I span the axle the end cap rotated and undid itself even more.
I tightened this and is no longer an issue, although now I hold the end cap with my finger as I am doing up the thru-axle to check/prevent spinning.
Seems like there is something not right with it, any chance you could borrow another 142x12 wheel off a mate and see what thats like, if there is play with that then you have got a problem with the dropouts or a fault with a component in that area, if not that, then its back to the hub where the fault is.
Process of elimination really....
5plus, you're absolutely correct, I didn't really explain my thought process very well. I'll have a look at the hub end cap inserts and start from there, it's the only place I can imagine there being any movement as the end caps fit snugly up against the dropout inserts which are also true and tight. Hmmmm.