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Just got new Metzlers on the bike, and when I got home (note to self: check bike at shop, even if impending storm is looming), found significant brake drag, front & rear, that wasn't there before. A good hefty wheel-of-fortune-style spin on the wheels gets about 1-1/4 rotations with constant drag. Is this common following wheel removal?

Thanks all,

Z

Operator errors.

I have had my front and rear wheels off countless times and no brake drag afterwards. Possibly some mistakes made in reinstalling the brakes but if done by a professional shop that would be difficult to understand.

Zik wrote:Just got new Metzlers on the bike, and when I got home (note to self: check bike at shop, even if impending storm is looming), found significant brake drag, front & rear, that wasn't there before. A good hefty wheel-of-fortune-style spin on the wheels gets about 1-1/4 rotations with constant drag. Is this common following wheel removal?

Thanks all,

Z

Sounds like they did not press the pistons all the way back in the caliper after removing the pads. Be careful, you can/will glaze your pads and warp your rotors.

You need to determine if one pad is dragging or both pads are dragging on each caliper.

If all the pads are dragging, do have a linked braking system?

Is the rear brake light on all the time?

If you have that much drag, you should see discoloration on one side or both on the rotors.

Once you have answered the above questions you can narrow down the causes to stuck pistons, collapsed lines, bent or jammed lever, missing or wrong spacer, etc..

If you have constant drag, I would rule out bent rotors.

I have to ask, the tires aren't too big and rubbing are they?

John

Sounds like a bad job... take it back and get it fixed before it warps your rotors.

I've seen this happen on the front wheel if the bike wasn't bounced before torquing the axle bolt and it's pinch bolts to align the fork tubes, but don't know what they could do to the rear wheel that would do that, unless they didn't tighten the lug nuts...CHECK THEM BEFORE RIDING IT ANY FURTHER

Take a large black magic marker, and mark lines in a perpendicular circle around the outside and inside of both rotors. Spin the wheel and see where it is rubbing. This is an old technique from the 70's ATE calipers.

Front and rear tire install at a shop, potential front and rear brake issues. Call the shop, relate your findings and take the bike back for an inspection.

Thanks everyone for input. John, the tires themselves are the same make/size as before, and aren't rubbing. Brakes are linked, brake light wasn't on. I'll use f4tweet's marker technique to see exactly where the rub is, see if it's both sides or one, and check lug nuts whilst I'm doing that. Time to get a torque wrench anyway. I've heard of the pistons getting gunked up and not allowing full caliper release. Will notify shop and reinspect.

z