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)

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

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"

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

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COMMENTS

W

Wouter 2020/06/30

Hey, im getting new wheels in my bike soon: (Ridley) VARDAR db wheels. I was thinking about matching it with 28mm tires, but im not sure if that's the way to go since 25mm might be better? Here are some stats on the wheels: Vardar DB Hub Forza 7 Beaufort db Brake Type Disc brake: 6IS Set weight 1490 g Rim Type Clincher Rim material Carbon Rim depth 45mm Internal rim width 17mm External rim width 27mm ETRTO 622-17C Recommended tire size 23-45mm Spoke count Front 24h - Rear 24h Release system TA12 F: 100mm - R: 142mm Thanks in advance! :)


LightBicycle 2020/07/02

Hi Wouter, The 28c tires should not be an issue for your wheel according to your specifications. However, some 28c tires are tricky to work with given our mounting experience, like Vittoria Rubino Pro Endurance 700x28c or Michelin Power Endurance 700x28c. Use a lever when the mounting got challenging. Thanks, Lightbicycle


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M

mike 2020/06/23

26x190 is stamped on my rim which coaster tires would fit from smallest to largest thank u kindly mike


LightBicycle 2020/06/23

Hi Mike, Normally, rims manufacturers don't mark the measurement data on the rim surface. You can check with your supplier and remove the tires and measure the wheel inner width. Thanks, Lightbicycle


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W

wii 2020/06/21

can i put a 2.25 tires on a 2.20 rims


LightBicycle 2020/06/22

Hi Wii, Could you tell me the internal width of the bike rim mtb? The tire fitting is affected by the internal width and center channel design. Thanks, Lightbicycle


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H

Hart 2020/06/14

Hello: I have an ALEXRIM DM18 rim and would like to know which tires will fit on it. Thanks.


LightBicycle 2020/06/15

Hi Hart, The internal width of the DM18 is 17.9 ≈ 18mm. It's the same with our R rims 700C road. The closest rim we got is the R25 (17.9mm internal, 25mm outer width, 25mm depth). We recommend 21~38c tires for our R25 rims. So you can take this for reference. Note that tire fitting varies from rim and tire designs. Thanks, Lightbicycle


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O

Osman 2020/06/07

Hi, I have a 2014 Giant Escape 1 with 622x19 rims and 700x32c tires. I use my bike on smooth and plain asphalt. I want to switch to narrower tires. Can you advise what is the narrowest tire size I can put on those rims? And what is the optimum tire size you would advise for those rims again. Thanks in advance.


LightBicycle 2020/06/08

Hi Osman, For a 19mm internal rim, we would recommend running 25c tires for the minimum. But this is only for reference because we are not sure about the rim section design of Giant. I hope this helps. Thanks, Lightbicycle


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A

AD 2020/05/28

I inherited a Thruster fixed gear bike with the tire size 700x38c. I need to replace the wheels. I like the versatility of the tire size, but also like the look of the deep profile wheels (but those are more narrow). What’s the best wheel for my tire size? Is there a deep profile option for that tire size?


LightBicycle 2020/05/28

Hi Sir, Since you prefer a deeper rim, I would say our AR56 (30mm wide, 56mm deep) road rim would be a good option. Will you confirm to me if your frame spacing is enough for the 30mm rim? Thanks, Lightbicycle


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J

James 2020/05/25

I have a 29" mtb rim with a 25mm inner rim width. I am looking at putting some fast tyres on that are slightly off road capable. If I went 700c tyres what would the biggest and smallest size, 30c - 40c? And if I went 29" tyres what would be the biggest and smallest size, 1.75"-2.25"? Eyeing up the Schwalbe G One all round 57-622 (29 x 2.25), will that fit? Many Thanks


LightBicycle 2020/05/26

Hi James, If you go with 700c road tires, the range is 28-50c. If you go with 29er tires, the range is 2.1"~2.7". Note that the tire range works best for Light Bicycle rims, you can only take it as a reference if you are mounting with rims made/designed by other manufacturers. Thanks, Lightbicycle


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A

Anja 2020/05/19

Hi. What inner rim width would you recommend for bikepacking rim if I want ro be able to fit 27,5x2.1 tires and also 27,5x.2.8 tire. Would this maybe be possible with innercrim width of 25mm or 30mm? I am looking for the best, versatile option. Thanks for your answer. Anja


LightBicycle 2020/05/20

Hi Anja, According to our experience with tires (mount on LB rims), you should have 2 different width rim to fit with 27.5/650b*2.1" and 2.8". The range is too wide. 25mm inner width rim is a bit narrow for 2.8" tires. Thanks, Lightbicycle


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S

Sebastien 2020/05/04

would a 2.4 work on a 35mm rim?


LightBicycle 2020/05/04

Hi Sebastien, In the Light Bicycle rim case, a 2.4inch tire would be too narrow for a 35mm internal width rim. Our recommended range is 2.5~3.1". The fitting and riding would be at the best performance. But the actual fitting depends on which tire and rim you are using. The fitting is quite complicated because of different manufacturing and design standards. It should be okay to use 2.4' tires on 35mm inner bike rims. Thanks, Lightbicycle


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C

Catz 2020/04/22

Hello, I want to go tubeless and put 2.4” tires on a 23mm internal rim. Or do you think sticking to 2.3” would be better?


LightBicycle 2020/04/22

Hi Sir, For 23mm internal rim width, it is okay to use 2.4" if you like. But 2.3" tire will work better on this bike wheel size. Thanks, Lightbicycle


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