adab
07-23-07, 09:49 AM
So now I'm considering just putting new tires on my Giant-Boulder mtb. I have 26x1.95 size tires. Would 700x28 road tires fit?
Bicycle Mechanics - tire size
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Lambo
07-23-07, 09:50 AM
No.
moxfyre
07-23-07, 09:56 AM
No. The bead size of the replacement tires must match (26" and 700C are different sizes). If you want slick road tires, you need 26" slicks. For example, these (http://www.nashbar.com/profile.cfm?category=6000121&subcategory=60001249&brand=&sku=7174&storetype=&estoreid=&pagename=Shop%20by%20Subcat%3A%2026x1%2E0%20to%2026x1%2E75) are cheap and decent 26x1.25" slicks.
Also see Sheldon Brown's tire sizing guide: http://sheldonbrown.com/tire-sizing
Also see Sheldon Brown's tire sizing guide: http://sheldonbrown.com/tire-sizing
tellyho
07-23-07, 10:23 AM
Ritchey makes the skinniest MTB slick I know of, called Tom Slick, 26 x 1", 100 psi, $15 at Nashbar.
Bill Kapaun
07-23-07, 11:08 AM
Keep in mind that going to a "skinny" street tire will, in addition to being much easier to pedal, will also gear you down.
moxfyre
07-23-07, 11:15 AM
Keep in mind that going to a "skinny" street tire will, in addition to being much easier to pedal, will also gear you down.
This is an interesting point. I used to think the 44/13 top gearing of my MTB with knobby tires was plenty high (a gain ratio (http://sheldonbrown.com/gain-ratio) of 6.3)... I almost never used the top gear. Now that I ride a touring bike with 175 mm cranks and slick tires, and I have gotten stronger, a gain ratio of 6.3 is a normal gear for me... I now have a top gear of about 8.5 and I definitely use it on the downhills.
This is an interesting point. I used to think the 44/13 top gearing of my MTB with knobby tires was plenty high (a gain ratio (http://sheldonbrown.com/gain-ratio) of 6.3)... I almost never used the top gear. Now that I ride a touring bike with 175 mm cranks and slick tires, and I have gotten stronger, a gain ratio of 6.3 is a normal gear for me... I now have a top gear of about 8.5 and I definitely use it on the downhills.