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

J

jayvee 2020/02/17

can a 2.3 tire fit on a Shimano MT 15 wheel? it says 559x19C on the wheel


LightBicycle 2020/02/18

Hi Sir, 2.3" tires would be too wide for the SHIMANO WH-MT15 wheels. For LB rims, we would recommend a 1.9"~2.1" tires range. But the different rim and different tire would fit differently. The size chart works best for LB products as LB rims are with a deep center channel that makes the bead easier to locate, and the small bump that prevent burp. Many details of the rim were designed to make the mounting easier and safer. Thanks, Lightbicycle


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Brian 2020/02/23

can my 20 inch bmx fit a 2.25 tires?


LightBicycle 2020/02/24

Hi Brian, Do you know the internal width of your 20-inch rims? The tire fitting depends on the internal width of the rim and the rim profile. I need more info about your rims to know if the 2.25 tires fit for your wheel. Thanks, Lightbicycle


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A

Aman 2020/02/15

hi sirr, what minimum size tyre for rim 30mm.? can u recommended suitable tyre size on 30mm iw, sorry for my broken english


LightBicycle 2020/02/15

Hi Aman, Is it your 30mm inner  width?  or 30mm outer width? If it is 30mm inner width, you can use 2.2"~2.7" tires. Thanks, Lightbicycle


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A

AH 2020/02/09

How about a 3.0 tire on a 65mm outside rim maybe 60mm inside?


LightBicycle 2020/02/10

Hi Sir, According to our charts, we recommend using 3.8~4.2" tires on 60mm internal width rims. But note that this tire fitting chart works best for LB rims. The different tire brand fitting will vary Thanks, Lightbicycle


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J

Jamie 2020/01/25

Hi, Could i get away with putting a 2.6" tyre on a 40mm rim?


LightBicycle 2020/01/26

Hi Jamie, If your mountain bike rims with 40mm inner width, it is okay to use 2.6" tires. Thanks, Lightbicycle


E

Elffie 2020/02/03

How about 45 rim wit 2.6 tires?safe?or not recommended?


LightBicycle 2020/02/03

Hi Sir, Is it your mountain bike rim width 45mm inner width? If yes, 2.6" tire will be a bit small. It is okay to mount, but we recommend wide tires. Thanks, Lightbicycle


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K

Kervy 2020/01/17

Hi Is it ok to put a 2.30 maxxis dhf dhr on my spank ozzy rim with a 35mm inner width?


LightBicycle 2020/01/18

Hi Kervy, Base on our experience, a rim with a 35mm inner width should fit with 2.5~3.1" tires. 2.3" tires would be too narrow for the rim. But if you do not mind the tires width narrow, you can have a try. Thanks, Lightbicycle


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S

Steve 2020/01/17

Thanks for this rim guide. I have chosen as a result of the chart a pair of Mavic EN323 rims (23mm inner rim width) with a 2.25 tyre. Thanks again.


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A

Aekei 2020/01/02

Hi, I have a Zac 19 rim, is it safe to fit a 2.4" tyre? Using it for commuting. Thank you.


LightBicycle 2020/01/03

Hi Aekei, May i know your fat bike rim inner width? Then we can check whether 2.4" tyre can fit or not. Thanks, Lightbicycle


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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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Boyjackpot 2019/12/17

Hi i have a question my frame size is 16 small and my tires is 27.5x 2.10 i like to change my wheels to 2.2 or 2.3 does it still fit to the frame that ive got?


LightBicycle 2019/12/18

Hey, Could you tell me that which frame that you use so I can learn more about the spacing? The tire fitting chart we have online is to guide people choose the right tire width for right rim, not a guide for frame fitting. But I am happy to help you. Thanks, Lightbicycle


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C

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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N

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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