Bicycle Mechanics - Tire sizing question.

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fastball
08-31-04, 02:35 PM
I just bought a new bike. This is my first "new" bike in a decade. It's a Specialized Sirrus Pro. It has 700 X 28 tires now. I have used Continental Touring tires for years on my commutes and never get flats. The Contis are 700 X 32. Can I mount the 32's on the same rims as the stock 28's? Thanks in advance.

sydney
08-31-04, 02:50 PM
I just bought a new bike. This is my first "new" bike in a decade. It's a Specialized Sirrus Pro. It has 700 X 28 tires now. I have used Continental Touring tires for years on my commutes and never get flats. The Contis are 700 X 32. Can I mount the 32's on the same rims as the stock 28's? Thanks in advance.Yes, but you could have a clearance problem.
John E
08-31-04, 08:20 PM
Yes, check frame and fork clearance before buying the new tyres. Since my new Conti Ultra 2000 700Cx28 is more like 25mm in width, you may be OK with 700Cx32 Contis.