Have questions or want to discuss cycling? Join Now or Sign In to participate in the BikeRide community.

New: Take part in the October Giveaway for the Haven Bicycle Co. beach cruiser


Tires scratching frame
#1
I was working on my girlfriend's Madone, and when I had the wheels off the bike I discovered some very weird scratches on the inside of the chainstays, seatstays, and fork, right about the outer diameter of the wheel. They kind of looked like she had ran over something that stuck to the wheel (like a soda can) and had gone through a few revolutions before she stopped and removed it. They're pretty deep, but they're not getting to the carbon fiber, thankfully.

For about a week, I had no idea what could have caused them. However, once I put the tires back on, and spun the wheels while contemplating the problem, it hit me. Bontrager tires have the injection molding tabs on the outside of the casing just like every other tire, but they are on the SIDES of the casing rather than radial like every other tire I've seen. The darn things are just long enough to hit the frame on every revolution, and after hundreds of thousands of impacts, they have worn away the clear coat and paint on the frame! I showed it to the guys at the Trek store, and they seemed to think it was normal. I wish they would tell people about this when they purchase bikes with these tires!

Anyway, just an FYI to everyone out there...check to see if these little injection molding tabs hit your frame and cut them off if they do!
  Reply
#2
Those look like tire wear marks! Is you wheel true?
Good maintenance to your Bike, can make it like the wheels are, true and smooth!
  Reply
#3
Wheels are true, yes. I am 100% sure it's from the little rubber tags on the outside of the tire because they run right through the scratches when they rotate through the frame.
  Reply
#4
Yea I would be a little upset and atleast have who ever installed the tires to make it right!!
Good maintenance to your Bike, can make it like the wheels are, true and smooth!
  Reply
#5
Should have make some noises when riding your bike???
  Reply


Possibly Related Threads...
Thread
Author
Replies
Views
Last Post

Forum Jump:

[-]
10 Latest Posts
V Brakes just won’t adjust properly
Today 12:19 AM
[Sponsored] Souke Sports Cycling Apparel...
Yesterday 09:17 PM
What was your first bicycle?
Yesterday 10:35 AM
Chain skips under heavy load when pedall...
Yesterday 06:03 AM
Bike evaluation
Yesterday 01:05 AM
VINTAGE DERAILLEURS: Campagnolo 50s-80s
Yesterday 12:52 AM
What's your No.1 concern when you purcha...
10-14-2021 11:24 PM
Is this frame dent a concern?
10-13-2021 04:50 PM
Looking for Cycling Apparel Testers - So...
10-12-2021 10:10 PM
Cycling Training Programs
10-12-2021 04:54 PM

[-]
Join BikeRide on Strava
Feel free to join if you are on Strava: www.strava.com/clubs/bikeridecom

[-]
Top 5 Posters This Month
no avatar 1. Souke Sports
23 posts
no avatar 2. Criminal
16 posts
no avatar 3. ReapThaWhirlwind
13 posts
no avatar 4. Zviedrs
7 posts
no avatar 5. JR Namida
7 posts