this post was submitted on 24 Sep 2024
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Do you think I can fit 38mm tires on my bike? (lemmy.world)
submitted 1 month ago* (last edited 1 month ago) by NineMileTower@lemmy.world to c/bikewrench@lemmy.world
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Here's the bike I have: https://www.bikesdirect.com/products/motobecane/mirage_tour.htm

Here's the tires I want: https://www.amazon.com/gp/product/B0B6BXF43T/ref=ox_sc_act_title_2?smid=A3QGN5CVWB8NQ6&psc=1

I recently moved and there's less paved trails and more rail trails. I want a wider tire, but can't figure out if it will fit on the rim, within the fork/frame, or within the brake pads. I measured and 38mm looks like it should fit, but I figured someone else might know more than me. All the products and stats are listed on the site.

Also: I get it, it's not the best bike/tire combo on the market. Cycling is only really a side hobby for me, so don't shame my choices. I love my bike and the price I paid for it.

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[โ€“] NineMileTower@lemmy.world 2 points 1 month ago (1 children)

In terms of the tyre fitting the rims however then that should fit just fine. The bike is listed as having 700c wheels already, so unless you have switched them out for something else then the linked tyres are listed as 700c as well.

I was more worried that a 38mm width tire wouldn't work on the existing rim. I don't know how that works.

[โ€“] theskyisfalling@lemmy.dbzer0.com 1 points 1 month ago

Ah I see. Well the bike came with 23 or 29 iirc from that link. So you are only adding up to about 15mm outside diameter. Whilst having narrower rims will change the way the tyre acts in terms of the way it squishes and reacts under pressure it will be pretty negligible to you as you've said you aren't chasing times or competing etc. If you were getting a considerably larger tyre it may be advisable to get wider rims for them to sit properly on but as it is you should be fine :)