Join Date: Apr 2009
Location: New Rochelle, NY
Bikes: too many bikes from 1967 10s (5x2)Frejus to a Sumitomo Ti/Chorus aluminum 10s (10x2), plus one non-susp mtn bike I use as my commuter
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Two possibilites. One is that you're not using the QR correctly. The other is that the hub's bearings need adjusting.
One way you can tell is to jiggle the rim with your hand on the QR unit head and see if you feel movement. If so, the QR needs adjusting. If not it's wothin the hub.
To adjust the QR, stand the bike straight up on the floor, (maybe have someone hold it for you, or leaning in a doorframe) open the QR, and turn the nut on the left side a bit while testing the tension by closing the lever.
QR's vary but typically you should adjust so you begin to feel resistance about half way, then be able to close it all the way with reasonable force. (Remember you want to be able to open it). Be sure to close it all the way flat with the frame. The tightest spot is before it closes flat, then it actually loosens a bit which is what keeps it closed.
If the QR is fine than it's a hub issue and you'll need to go back to the shop for a free adjustment.
IMO- you should go back anyway, because they should show you how to use a QR, and make a number of user adjustments. Part of buying from a shop is the support provided with the sale, and if they didn't give you basic instruction they haven't finished their job.
An ounce of diagnosis is worth a pound of cure.
“Never argue with an idiot. He will only bring you down to his level and beat you with experience.”, George Carlin
“One accurate measurement is worth a thousand expert opinions”
- Adm Grace Murray Hopper - USN
WARNING, I'm from New York. Thin skinned people should maintain safe distance