Trueing wheels - especially roundness

rusky

CC Addict
Location
Hove
OK, had a new bike delivered but the wife has said I can't keep it :sad:

Unfortunately, when it arrived, one of the spokes on the rear wheel was so loose, it was almost out of the nipple:blink:

As I was tightening it up & trueing the wheel I noticed that instead of being round i.e. O it's more like D not that bad but just about noticable when you spin the wheel & look down on the rim at a tangent. Can this be trued out?
 
Location
Edinburgh
It probably can. If this is a new bike, take it back to the shop and get them to do it. This should be covered by the after sales service that is provided by reputable bike shops for free after a few weeks.
 
OP
rusky

rusky

CC Addict
Location
Hove
I't's going back on Tuesday.

I was more curious than anything else. Looks like it was damaged in transit, just couldn't see a way of pushing the rim outwards.
 

andrew_s

Guru
Location
Gloucester
If the rim itself is bent, with a flat spot, there's not much that can be done other than get a new rim/wheel.
This is what you would get from transport damage or hitting a pothole too hard.

It could also just be a poor build, with the rim pulled out of shape by uneven spoke tension. Roundness is awkward to true out and it's often easier to slacken off all of the spokes and redo the tensioning from scratch. Generally you'd get rid of a low spot by loosening the spokes at the low spot and tightening the spokes either side to squeeze the rim upwards.

If the low spot (i.e closer to the hub) is at the same place as the slack spoke, it's probably transport damage and a bent rim.
 
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