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Rubbing rear spokes(2 posts)

Rubbing rear spokesRecRider
May 8, 2001 9:35 PM
Hi,

I have this newly built roadbike which is just a month-old. I didn't have any problem riding it for the first 30 miles or so. Then, one spoke of my rear wheel started to slightly rub against the cage of my 105 rear der. I managed to tighten the spoke up a bit to minimize the noise and contact.

Is this normal and part of the break-in process? Or is my wheel not well-built? It still remains true but what's the remedy to fix the rub? The wheel is Mavic CXP-33 with 36 holes.

Another question : Does the rear wheel has to be perfectly centered between the chainstay when you look at it from the rear or should there be more space on the drive side ?

Thanks
re: Rubbing rear spokesDrD
May 9, 2001 5:03 AM
The deraileur cage shouldn't ever rub the spokes - couple of things to check - first, the wheel may be improperly dished (offset towards the drive side) or the rear der. hanger could be bent/misaligned.

For the former, with the wheel in the frame, look at how close it is to each chainstay, then remove the wheel, flip it over, and reinstall it (so that the cassette is on the wrong side of the bike) - look at how close the wheel is to each chainstay again - it should be the same (i.e., if it was centered, then it should still be centered, if it was closer to the drive side chainstay, it should still be that way - even though you flipped the wheel) - if it's not, then the wheel needs to be redished (not a big deal).

With the der. hanger, the most reliable way to check it is with an alignment gauge which your lbs will have (most places seem to charge $20-30 to realign a der. hanger, but will check for free - might be different in your neck of the woods, though)

As far as does the wheel "have" to be centered - I guess it doesn't have to be, but in most frames it will be (unless the wheel is dished improperly, not installed all the way into the dropouts, or the frame is damaged)

If the bike is new, bring it back to the shop you bought it at, show them the problem (that way they know exactly what you expect them to fix), and have them check it out for you.