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rear tire size & quick changes on '99 Specialized Allez Ultegra
I have a 1999 Specialized Allez Ultegra that I purchased used in
excellent condition about a year ago. The rims are Mavic CXP23 (622x15 6106) and the tires that were on the bike were Specialized Turbo 700x23. I didn't receive an owners manual. What I've found when after fixing a rear flat is I can't air up the rear tire before placing(mounting) the tire back on the bike. What happens is the tire hits the cross piece, connecting the two chain stays, behind or to the rear of the down-tube prior to getting the axle/quick-release into the drop-out brackets. I end up having to place/mount the fixed flat tire without air on the bike and then airing the tire up. I've had the same problem with the following tires as well: Continental Grand Prix 4 season 700x23 Michelin Pro Racer 700x23 I've talked to the LBS and they indicated tolerances on bikes with tires and frames are very small and sometimes this happens and you have to air up the tire after its placed back on the bike (the LBS didn't sell the bike to me). I called Specialized and spoke with a person there who has the exact same bike. He said he doesn't have this problem and explained the measurements on tire sizes (e.g. 700x23) can vary from brand to brand. He indicated he uses a Specialized Armadillo 700x23 and is able to change the rear tire and place it back on the bike when its fully aired. Does anyone have any experience with this particular bike, or suggestions? Can anyone else confirm similar experiences with the Armadillo tire that Specialized indicated? |
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#2
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rear tire size & quick changes on '99 Specialized Allez Ultegra
biker019283 wrote:
I have a 1999 Specialized Allez Ultegra that I purchased used in excellent condition about a year ago. The rims are Mavic CXP23 (622x15 6106) and the tires that were on the bike were Specialized Turbo 700x23. I didn't receive an owners manual. What I've found when after fixing a rear flat is I can't air up the rear tire before placing(mounting) the tire back on the bike. What happens is the tire hits the cross piece, connecting the two chain stays, behind or to the rear of the down-tube prior to getting the axle/quick-release into the drop-out brackets. I end up having to place/mount the fixed flat tire without air on the bike and then airing the tire up. I've had the same problem with the following tires as well: Continental Grand Prix 4 season 700x23 Michelin Pro Racer 700x23 I've talked to the LBS and they indicated tolerances on bikes with tires and frames are very small and sometimes this happens and you have to air up the tire after its placed back on the bike (the LBS didn't sell the bike to me). I called Specialized and spoke with a person there who has the exact same bike. He said he doesn't have this problem and explained the measurements on tire sizes (e.g. 700x23) can vary from brand to brand. He indicated he uses a Specialized Armadillo 700x23 and is able to change the rear tire and place it back on the bike when its fully aired. Does anyone have any experience with this particular bike, or suggestions? Can anyone else confirm similar experiences with the Armadillo tire that Specialized indicated? Presumably you have horizontal dropouts? I've had this problem on a bike where the dropouts were replaced by a framebuilder for ones of a slightly different design (shorter). You'll just have to experiment with different tyres if a quick change is really important to you. Sometimes a wheel will go in with a good thump of the hand, although this does tend to scuff up the paintwork a bit. |
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