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

A

Anthony 2020/03/22

Would 20x2.4 tires fit on my 20 inch rims


LightBicycle 2020/03/23

Hi Anthony, Do you know the internal width of your 20inch BMX rim? The tire fitting depends on the internal width your rims have. You can either confirm it with the manufacturer or measure it yourself. Thanks, Lightbicycle


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G

Glong 2020/03/15

can i use 32mm width rim to 2.0 tire or 2.1


LightBicycle 2020/03/16

Hi Glong, If the 32mm width you mentioned is the internal width of the rim, then a 2.0-inch tire or a 2.1 inch tire would be too narrow to fit the rim. Our recommendation would be 2.3"~3.0". We would recommend running 2.0"/2.1" tires on rims with a 19mm~27mm internal width. But the actual fitting will depend on the tire you choose, with tube or tubeless? With rim stripe or tape? Thick tire bead or thin bead? Thanks, Lightbicycle


G

Glong 2020/03/26

can i fit 2.0 tires for 28mm rims


LightBicycle 2020/03/27

Hi Sir, Does the 28mm refer to the internal width of your rim? If so, a 2.0inch tire would be too narrow to fit. If it's the external width, can you possible get the internal width so I can make a recommendation accordingly? Thanks, Lightbicycle


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W

Wayne 2020/03/06

I brought a Korean cargo bicycle home from S. Korea and when I ordered a 26" front tire as the front tire was marked on the sidewall, the replacement tire arrived but it is slightly too large in diameter. I was able to slide the replacement tire over the rim without the usual stretch. Once air entered, portions of the tire escaped the rim. Why was a 26" original tire different than the one I ordered? Wayne Seelig


LightBicycle 2020/03/06

Hi Wayne, First of all, are you using a Light Bicycle rim? Have you consulted the tire size with the tire manufacturer? Thanks, Lightbicycle


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M

Marc 2020/02/26

I have a 29" Stout XC SL Rim, 21mm internal width with 2.1" dia tires. What would you recommend as my max tire size?


LightBicycle 2020/02/27

Hi Marc, The tire sizing chart works best for LB bike rims as rims from different manufacturers design differently. For a 21mm internal width rim, the widest tire we would recommend is 2.3". But the fitting also affected by the tire itself, some bead of tires are too thick to fit in narrow rims. The best solution is also consulting the tire manufacturer. Thanks, Lightbicycle


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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


B

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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