Tire Size Chart For Bicycle Rim

Tire Size Chart For Bicycle Rim

When it is time to replace your well-worn tires, it is a good opportunity to unlock the full potential of your wheels by trying something new. This chart will provide guidance on what tires sizes can match your internal rim width.

Unfit tire size could damage the rim and put the riders in danger. If the tire is not wide enough, you’re risking more pinch flats and blowouts; if it is too wide, tire burping and poor stability may occur.

In this blog, we list the recommended tire size charts for LB mountain/road/fat rims. Check it carefully before ordering carbon rims or buying new tires. If your combination is not listed here, please contact us to discuss it.

MTB RIMS / TIRES

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)

Note:

The recommendations are based on our rim-tire compatibility tests with some of the most popular tires. This chart only serves as a general guide since bead design, inflation pressures, and other variables will affect the actual rim-tire compatibility. Please send the rim profile to the tire manufacturer to double-check.

We don’t suggest choosing the largest or smallest values of a size range. For example, with a range from 1.9” to 2.1”, 2.0” is an optimal option for most riders.

The chart is only applicable to Light Bicycle rims with a unique rim-tire interface. If you use rims of other brands, please send a rim profile to the tire maker for recommendations.

ROAD RIMS / TIRES

Internal rim width (mm) 17-19 20-21 22-23 24-25
Tire size 23-25C
Tire size 25-28C
Tire size 28-30C
Tire size 30-33C
Tire size 33-35C
Tire size 35-38C
Tire size 38-40C
Tire size 40-43C
Tire size 43-45C
Tire size 45-48C
Tire size 48-50C

Note:

The recommendations are based on our rim-tire compatibility tests with some of the most popular tires. This chart only serves as a general guide as bead design, inflation pressures, and other variables will affect the actual rim-tire compatibility. Please send the rim profile to the tire manufacturer to double-check.

We don’t suggest choosing the largest and smallest values of a size range. For example, with a range from 25C to 30C, 28C is an optimal option for most riders.

The chart is only applicable to Light Bicycle rims with a specific rim-tire interface. If you use rims of other brands, please send a rim profile to the tire maker for recommendations.

FAT RIMS / TIRES

Internal rim width (mm) 55 60 65 70 75 80 85
Tire size 3.8 - 4.2"
Tire size 4.3 - 5.0"

Note:

The recommendations are based on our rim-tire compatibility tests with some of the most popular tires. This chart only serves as a general guide as bead design, inflation pressures, and other variables will affect the actual rim-tire compatibility. The chart data should be verified with the tire manufacturer.

We don’t suggest choosing the largest and smallest values of a recommended size range. For example, with a range from 4.3” to 5.0”, 4.7” is an optimal option for most riders.

The chart is only applicable to Light Bicycle rims with a specific rim-tire interface. If you use rims of other brands, please send rim profiles to the tire maker for recommendations.

Recently we have done some tests on tire width and weight and make them good blogs to help you choose the right tires for your bike quickly.

popular-bike-road-tire-actual-widths-measured-on-LB-carbon-rims.jpg
29-27.5-inch-bicycle-tires-actual-weights-vs-claimed-weights.jpg

COMMENTS

L

Lai 2021/02/07

Can 1 use maxxis rekon 2.4 for front and rekon race 2.2 rear for my 21mm rims xc bike


LightBicycle 2021/02/08

Hi Lai, Thanks for your inquiry! Yes, for 21mm inner width, it is okay to use front 2.4" tire/rear 2.2". Thanks, Lightbicycle


M

MJ 2021/04/13

Can I use the same exact tire set up on 20mm rims? Theyre Bontrager connection wheels Thanks!


LightBicycle 2021/04/14

Hi MJ, Our tire fitting chart works ok for most of the carbon rims on the market. But given the fact that the design of rim bed and bead hook are vary from manufacturers, the installation will be lightly different. Thanks, Lightbicycle


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R

Ronny 2021/03/15

Hello, I’m currently running 2.10s front and rear my rim says 559x 29 what tire sizes are compatible with this rim size ? Thank you


LightBicycle 2021/03/15

Hi Ronny, Can you tell me the model of the wheel or rim 700C you have? The marking and standard are a bit different depending on the factory. The rim center design is the key factor to a good tire fitting. Thanks, Lightbicycle


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Y

Yaniboi 2021/03/11

Planning to build a 700x40c wheelset, that's the max tire clearance of my frame. What rim width can you recommend? My frame is a Polygon Bend R5 gravel bike


LightBicycle 2021/03/11

Hi Yaniboi, Thanks for your inquiry! May i know your current tire width? Are you going to use 40C tires? And my i know your weight? Do you ride aggressively? Then we can check which gravelwheels 700C are better for you. Thanks, Lightbicycle


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S

Sam 2021/03/01

Hey guys, I’ve got an older frame and the wheels are marked 559x21c and the current tyre is 26 x 1.90 The metric and imperial cross over is getting me confused. So the internal rim width is 21mm, it’s a 26” rim and the current tyre is 1.9” wide, is that right? I’m trying to find the narrowest tyre I can fit to this rim to use the bike for more hybrid/gravel settings rather than MTB! Thanks in advance


LightBicycle 2021/03/02

Hi Sam, Our tire size chart is regarding our own rims and only for a reference, the narrowest tires for a 21mm inner width rim is 1.9 inch. If you want to make sure, you could contact your rim supplier to make sure the narrowest tires that you could go for. Thanks, Lightbicycle


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J

JIM 2021/02/25

Hi - struggling to get a correct answer so hope you can help. I bought a bike with DT Swiss 485D rims, currently with 700x42 tires. Would you know what the narrowest tire that I could use on these rims? Would be interested in x35 or x38. Thanks so much.


LightBicycle 2021/02/26

Hi Jim, What is your current road disc rim inner width? Thanks, Lightbicycle


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R

Richard 2021/02/19

I have a wheel set size 26x50mm what size tires could I put on it? This for a Cruiser bike. Thanks for any help


LightBicycle 2021/02/19

Hi Richard, What does the 50mm refer to? The external or internal width of the rim? The internal width is measured with the tire removed. The tire fitting depends on the internal width (ref to the chart) and rim bead design. Thanks, Lightbicycle


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A

Adam 2021/01/27

I have a wheel that is 50mm internal rim width. Will a 4.6 inch tire fit this wheel? Thanks.


LightBicycle 2021/01/27

Hi Sir, Are the 50mm rims fat bike rims? or just a plus rim? Thanks, Lightbicycle


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K

Kevin 2021/01/22

Hi, my gravel 650B internal rim is 24.5mm, can I run 2.2" tire on it? Thanks.


LightBicycle 2021/01/23

Hi Kevin, Yes, you can use 2.2" tires on an internal width 24.5mm rim 27.5er. But the compatibility varies from design and manufacturers. Thanks, Lightbicycle


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Y

yousif 2021/01/18

Will the maxxis minion DHF 2.3 tyres and maxxis minion DHR II fit on a Cube aim pro 2018 mtb 27.5" diameter and 20mm internal rim width?


LightBicycle 2021/01/19

Hi Sir, The Maxxis Minion DHF 2.3inch tires will be a bit wider for a 20mm inner rim 650B. Our recommendation is 1.9~2.2". Thanks, Lightbicycle


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S

Same 2021/01/10

Hi, Light bicycle! Question! Can I run 700x50 or 2.0 or 2.2 tires with my Niner wheels: 29MM (outer), 22.5MM (inner), 20.5MM depth, 598MM erd? Thank you!!


LightBicycle 2021/01/11

Hi Same, 2.2" tires should be ok to fit an MTB rim with 22.5mm internal width. Thanks, Lightbicycle


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J

Jackie 2020/12/16

Hi Light Bicycle, I have the Continental GP 5000 in 25mm. Can it fit in the WR50 rim?


LightBicycle 2020/12/17

Hi Jackie, Yes, the GP5000 25c tires will be very easy to mount on WR50 rims gravel. We tested with the tube inside, and it was very easy to install, no lever used. The center channel room is more than enough for the tire beads for you to put them into. Thanks, Lightbicycle


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F

Felix 2020/12/11

Is 2.30 maxxis minion fits on a 33 mm internal width rim?


LightBicycle 2020/12/11

Hi Felix, Yes, a 2.3" tire can fit for a 33mm internal width rim. But it might be a bit narrow for some rims. Depends on the rim design itself. So, it would be best if you can reach out to the manufacturer to be sure. Thanks, Lightbicycle


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K

Keaghan 2020/11/27

I have a bontrager race x lite rim that is 30mm deep, I need to know the inner rim diameter for what hub I get, I have the 280mm long spokes but I just need to make sure I have the right length spoke for the hub I get


LightBicycle 2020/11/27

Hi Keaghan, Hi Keaghan, Do you know the rim model that you have in hand? We will need the ERD and internal width. Also, if you can provide the hub measurements (from the manufacturer or hub model number). We can calculate the spoke length for you. Have a nice day! Lightbicycle


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M

Mark 2020/11/10

Can I run a 2.4 on a 40mm rim trek roscoe


LightBicycle 2020/11/10

Hi Mark, A 2.4" tire would be a bit narrow for a 40mm internal width bicycle rim carbon. I would suggest going up to 2.8". Thanks, Lightbicycle


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N

Nan 2020/11/03

How about a tire 2.1 in a 30.6 inner width rim? ( 27.5 MTB)


LightBicycle 2020/11/04

Hi Nan, 2.1" would be a bit narrow for a rim with 30.3mm according to our experience. We wouldn't recommend it. But also depends on the rim and tire you have. Which 27.5 er bike rim do you have on hands? Thanks, Lightbicycle


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