Tire Size Chart For Bicycle Rim

Here is our general recommendation on the tire width range that works best with a given internal rim width.

This is an estimation of rim width tyre size chart to help identify what rims you should look at, however tire brands will have their own recommendations which should be adhered to. This information can be found on the sidewall of your tires.

Generally speaking, if your tire is narrow compared to the rim, you risk pinch flatting and damage to the wide rim. If your tire is too wide compared to the rim, you risk burping/excess tire roll, and poor stability.

TIRE SIZE COMPATIBILITY CHART FOR MTB RIM

Internal rim width (mm) 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 40 45 50
Tire size 1.9"
Tire size 2.0"
Tire size 2.1"
Tire size 2.2"
Tire size 2.3"
Tire size 2.4"
Tire size 2.5 - 2.7"
Tire size 2.8 - 3.1" (Plus)

Check out the size chart for road rims and fatbike rims from our Support.

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COMMENTS

N

Newbiemtber 2019/11/25

Thank you for the easy to understand size guide. My question is, are the rim sizes always whole? I saw a rim with 22.4mm. Apparently its a sun ringle rebadged for niner inferno 27 rims. I am planning to get these rims (preloved) and to run it with 2.35 tires. Will it be wise to do so? Appreciate your advice on this.


LightBicycle 2019/11/25

Hi Sir, Thanks for your reaching out! For 22.4mm inner rim width, it is okay to use 2.35" tires. But if you go for slightly narrow tires, it will be better. Thanks, Lightbicycle


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Cameron 2019/11/14

Hi, I’ve got a rim 27.5 x 2.1 on my bike and I was wondering if I could fit Maxxis minions DHF 27.5 by 2.5 on them. Would the tires fit


LightBicycle 2019/11/14

Hi Cameron, What is your current 650B bike inner width in mm? Then we can check which tire width is better for you. Thanks, Lightbicycle


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Nathanyel 2019/11/08

Can I fit 2.6in tires on 38mm internal rims?


LightBicycle 2019/11/09

Hi Nathanyel, The closest rim we have is the AM740 (40mm inner, 46mm outer width) 650B wheels, our suggested tire range would be 2.8" ~ 3.1". The 2.6inch 27.5er tires would be a little narrower to 38mm inner width rim. But you are still okay to use 2.6" if you like. It is just not work very perfectly. Thanks, Lightbicycle


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M

Michael 2019/11/08

Hi my bicycle rims are 622x16c, what is the widest tire that will fit my rim safely? Thank you


LightBicycle 2019/11/08

Hi Michael, We usually recommend using 23~25c for a 17mm inner width carbon fiber bike rim, but our recommendation is more suitable for Light Bicycle self-made rims. The actual fitness will affect by the tire design and rim design itself. The factors vary from the brand. Hope this helps. Thanks, Lightbicycle


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T

Tom 2019/11/04

Hi. I have a 2018 Giant Anthem Advanced Pro 29 1 which has the XCR 1 29 composite WheelSystem tubeless with 21mm inner width and 27mm outer width. The standard tyre mounted is the 29 x 2.2 Maxxis Ikon. Would I be able to go wider however to the 2.9 x 2.35 Ikon? thanks


LightBicycle 2019/11/04

Hi Tom, For wheels with 21mm inner/27mm outer, it should be okay to use 29*2.35 tires. But 2.0~2.2" tire with will be with better riding performance on your 29er wheelset. Thanks, Lightbicycle


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Paul 2019/09/26

Any difference between tubes/tubeless? I'd like to make my bike tubeless, inner width 24 mm, tires 2.4".


LightBicycle 2019/09/27

Hi Paul, Are you using rim stripe or tubeless tape? If the tape/stripe is not too thick (Gorilla tape for instance). The tire size would be compatible for both tube and tubeless rims. Which mtb rim are you interested in? Let me know if you got any question regarding. Thanks, Lightbicycle


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I

Ian 2019/09/20

What is the widest road tire in mm that would fit on a mavic krysruim elite with 19mm internal width


LightBicycle 2019/09/21

Hi Ian, For 19mm internal width rim, we would recommend not go under 23c tires. Do note that rim from different brands is with a different design. Light Bicycle's tire size chart works the best for Light Bicycle self- made rims. Thanks, Lightbicycle


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J

Jordan 2019/09/06

I have wtb st i29 rims. Can I get away with putting 2.8 or 2.9 tires on them? I ride in south lake tahoe, CA and its really sandy so I want more grip. I weigh 150 pounds. What would be a good psi to run them if I can out them on? Thanks for the help!


LightBicycle 2019/09/07

Hi Jordan, What is your rim inner width? I checked on WTB website, it is 23mm inner width or 25mm inner width. Both these two rims are too narrow for 2.8~2.9" tire size. ​ Thanks, Lightbicycle


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Tom 2019/08/19

Thankyou for a simple easy to understand rim / tyresize guide.


LightBicycle 2019/08/20

Hi Tom, Glad that our size chart been helpful to you. Feel free to contact us if you have any other questions, it's totally alright if you are not planning on purchasing anything from us. LB is always glad to provide assistance that we can. Thanks, Lightbicycle


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D

Darren 2019/07/25

Hi, I have a 35 internal rim (WTB i35 tcs 2.0 rim) on my Whyte 901 MTB which currently has a 2.8 tyre on it. i want to go to a 2.2 (Continental Race King 2.2) if possible to do some fast rolling hard pack/tarmac riding. Anybody know if its a complete no no going to such a thinner tyre on these rims? thanks


LightBicycle 2019/07/26

Hi Darren, It is better not to mount 2.2" tire with on 35mm inner width rims/wheels. The tires are too thin to mount on these 35mm inner mtb rims/wheels. Thanks, Lightbicycle


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