My bike wheel was recently stolen and I found this old Bontrager AT-550 wheel in my shed. It's a 29er from my research and I'm wondering what size tyre would fit that would be decently smaller than the current tyre. My bike is a hybrid with a 700cx42c back tyre and the front tyre is 29x2.2 and it would look ridiculous to have a big tyre in the front and small one in the back. I'm sorry for mixing the units the measurement but I'm new to this and would appreciate some help. Thanks!
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1A 29" rim is the same diameter as a 700c rim. The 42 number on your back tire is its (approximate) width in mm and equals 1.65 inches. The difference between 1.65 and 2.2 is not enormous -- it might look a little odd. The bigger question is whether the wider tire and (probably) wider rim will cause clearance problems with fork or brake, and the easiest way to tell that is to try it, if you have the wheel in your hands already.– Daniel R HicksCommented Apr 17, 2020 at 19:50
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4Don't apologize for not understanding bicycle wheel sizes. No one understands them....– mattnzCommented Apr 17, 2020 at 20:37
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I'm currently using 29er MTB rims with 700c x 35 tires. I'd say that unles your rim is unusually wide, It will fit a tire of this size or wider with no issues.– JahazielCommented Apr 17, 2020 at 21:47
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1@mattnz - Yep, a 27" inch rim is larger than a 29" rim.– Daniel R HicksCommented Apr 17, 2020 at 21:47
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1Read the duplicates.– Daniel R HicksCommented Apr 18, 2020 at 12:17
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