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

I

ian 2019/03/13

my rim has a 23mm inner width, can I run a 2.4" TYRES on it? planning to put the maxxis ardent 2.4" tyre...


LightBicycle 2019/03/14

Hi Ian, The 2.4" tires will be ok to mount on your 23mm inner width mtb rims. Thanks, Lightbicycle


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H

Harel 2019/01/27

Hi my bike currently has 2.2 inch tyres and i want to upgrade the wheelset to 25mm internal width will it fit perfectly?


LightBicycle 2019/01/29

Hi Harel, Yes, the 2.2" tire will fit well on the 25mm internal width rim. What size rim are you looking for? Our XC925(29er) & XC725(650b/27.5") are both with 25mm internal width. Thanks, Lightbicycle


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K

Kass 2018/07/27

How do I work out the internal width rim? I have Alex TD26 27.5" rims, but I can't find the internal rim width anywhere (am I supposed to removed the tyre and measure?


LightBicycle 2018/07/27

Hi Kass, I think you can contact the manufacturer to get the rim profile to see the measurements for the rim. Including internal width. On the other hand, the quicker way would be you measure the internal width yourself. Attaching with one of our rim's profile for your ref so you can know what exactly should you measuring. Thanks, Lightbicycle


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Z

Zaw 2018/07/25

I would like to know is running a 2.0 trye on a 29mm internal width rim ok if I barely go off road?


LightBicycle 2018/07/26

Hi Zaw, The 2.0" tire would be too narrow for a 29mm inner width rim. The tires might come off during riding. 2.0" tires are mostly used for MTB wheels. Given the fact that you rarely riding off-road, you can consider using a road rim to achieve a better performance and safety. 29mm inner width is rather normal for a road rim. Usually, it's between 16~23mm. If you perfer wider rims, our new arrival road rim might just the one you want. You can see the rim profile from the attachment. Thanks, Lightbicycle


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K

keith 2018/06/11

i would like to know what size rims [width] you need for 2.5" - 3.00" - 3.5" - 4.00" wide tyres is there a chart that gives you all the dimensions and facts


LightBicycle 2018/06/12

Hi Keith, Our tire compatibility chart is undergoing. Few recommends for your ref. 26~34mm inner width rim for 2.5" tires. 32~45mm inner width rim for 3.0" tires. 50~65mm inner width rim for 4.0" tires and 3.5" tires. Tire width is not the only factor for choosing right rims. LB can make a proper customized recommendation for you. It will fit your profile better. Is this ok with you? If you like, pls provide below info so I can recommend accordingly. 1. What kind of riding you do? 2. Your weight 3. Your frame or fork 4. Aggressive riding or not? Thanks, Lightbicycle


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M

Mark 2016/06/20

Purchased the 29 AM rims & built on existing hubs. Noticeable stiffness and smoother ride compared to Arch EX rims. Tires are definitely more voluminous with this rim. No way a tire is coming off these rims with the hookless bead and the diameter of the rim. Tires (Maxxis 2.4) go on easy but once filled with air, they pop in place. Only compliant is a tire is tough to break the away from the rim once the tire is filled with air, but once you break the bead into the middle rim channel, the tires comes off easily. Great rim so far but only have a 300-400 miles on them. I weigh 165 lbs. and run 22/25 psi on 2.4/2.25 tires(front/rear) on full suspension bike.


Light-Bicycle 2016/06/21

Hello Mark, Thanks for your support. We are so happy you are enjoying your new rims. It would be great to see a picture of them on your bike! The center channel design is for mounting tire and taking off tire. The channel is deeper, while you mount tire, the tire has to be seated on the channel first. After pumping the air, the air pressure will put the tire go to the bead seat area. If you like to take off the tire, you have to take the air out first. Then remove the tire to the center channel first, it will be easier to take off. It is tubeless design. Happy riding! Light-bicycle


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