carbon 29er mtb rims 38mm wide hookless tubeless compatible strongest

INTERNATIONAL

Ships from China to worldwide destination. Contact us if your location is not listed.

Ships from Canada/United States warehouse to North American countries only. Contact us if you have special requests.

  • 1

    RIM

  • 2

    ACCESSORIES

  • 3

    OVERVIEW

RIM

Version This is a required option.

All Mountain

Heavy Duty USD +10

The HD version has extra layers for increased stiffness and sidewall reinforcement. Ideal for large and aggressive riders.

+ $10.00 per rim
+ 40 - 50g per rim

Hole This is a required option.

16H

18H

20H

24H

28H

32H

36H

Please note that our valves are drilled for presta and spoke holes are made for external nipples only. If you have a custom drilling requirements please e-mail us and we'll send you a purchasing link.

Finish This is a required option.

glossy

matte

Matte is slightly lighter and a more subtle finish (most popular). Glossy has a shine to it.

Weave This is a required option.

12K

3K

UD

The layup schedule is predetermined for each model, but you can choose the outer layer.
3k/12k/UD are the 3 choices for cosmetic appearance.The rim strength & weight is virtually identical.
UD Matte is the most popular and has a subtle look.
3k weave has a more traditional carbon fiber look.
More info about Weave >>

Decal This is a required option.

stealth

blue

green

magenta

orange

red

yellow


The new graphics are included and available in 7 colors. The decals are now easily replaceable so you can keep your rims looking fresh.

Valve Stem This is a required option.

None

Add Valve Stem USD +7

We include enough valves to cover your individual rim purchase. We use a lightweight black alloy anodized valve with an oversized concave collar for easy gripping. A rubber o-ring goes in between the rim and the collar to help seal the rim and match the contour of the rim profile. The vavle core is removeable so you can add sealant withoutn removing your tire.
Link to tubeless valve instructions

Tubeless Tape This is a required option.

None

Add Tubeless Tape USD +6

One 10 yard roll of tape will be included. It is typically covers 2 rims with two laps each or 4 rims with one lap each.The high tensile tubeless tape features a natural rubber adhesive that does not leave a residue on the rims. On mountain bike rims, one layer of 18mm width tape is strong enough to seal the access holes which makes for the lightest tubeless setup.
Instructions of tubeless rim tape

Carbon 29er wide rims

In Stock, typically ships within 2 business days

In Stock, typically ships within 2 business days

Non-Stocked, typically ships within 1-2 weeks

Non-Stocked, typically ships within 1-2 weeks

Recon Pro orders start shipping in October.

- + PCS

Weight: 465.00g+/-15

Final total: USD 191.00+(3.5% paypal fee included)

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RIM SPECS

  • Size 29er
  • Use All Mountain/Enduro
  • Type Hookless
  • Tubeless Ready
  • Inner/Outer Width 31.6mm/38mm
  • Depth 32mm
  • ERD 574mm (not including nipple head dimension)
  • Weight AM 465+/-15g, HD 515+/-15g
  • Offset 0mm (symmetric)
  • Weight Limit 140kg
  • Spoke Hole Angle ±5°
  • Spoke Tension ≤145kgf recommended
  • Tyre Pressure ≤35psi recommended
  • Tire 2.3" ~ 3.1" recommended
MTB carbon rim profile

Teleport to the wheelset building page.

The 38mm rims are very popular amongst riders looking for a strong and wide carbon rim. The 31.6mm internal width works well with high volume tires and the wide bead seat helps to prevent tire burping on tubeless setups. These imposing rims have a 32mm depth so you will get a very responsive wheel that can hold it’s line through rough terrain.


For really aggressive riders or those using the bike park from time to time, we have an HD version. The HD version receives an extra wrap of 3k carbon fiber for additional wall thickness and reinforcement so they can handle G-outs better than the normal version.

Hookless: Carbon fiber flows continuously over the bead area to provide the best impact resistance and a significant strength increase compared to a clincher rim.


Manufacturing process: Our air bladders are made from a special material which produces smoother walls, result in a lighter rim, and are completely removed without harsh chemicals. They are removed through the valve hole with a unique process so that the rim does not have to be patched like traditional manufacturers use. This significantly improves the strength of the rims. Read More about our process


T700: Constructed with premium Toray T700 carbon fiber. The best strength to weight ratio with no expense spared.


Precise layup: Each rim carries its own layup schedule documents which are followed meticulously by the layup workers. Our Engineering team creates a unique fiber orientation which amplifies the desired riding characteristics for a given rim.


Angled Holes: Angled spoke holes allows the nipple to pull straight in line with the spoke for reduced stress. This results in fewer broken spokes and nipples.


U-Shape: U-shape profile spreads the force of impacts and creates a more robust product.


Bead lock: The small ridges on either side of the drop channel help secure tubeless tires in place. The bead lock makes it easier to seal up tubeless tires with a floor pump, and they are incredibly hard to burp.


Tubeless: While the rims are optimized for a tubeless setup with the addition of tubeless tape, they also work with tubes.


For Non-Pro Series Rims: From the date of purchase, 15 Months Warranty
For Pro Series Rims: From the date of purchase, 3 Years Warranty. Light Bicycle is pleased to offer the options to purchase an extended 5-year Premium warranty or lifetime Premium warranty with minimum charge respectively.

Crash Replacement: It is applicable with the same period as to warranty time range that you purchased for the rim in terms of 15-month/ 3-year/ 5-year/ Lifetime, with 10%+ discount subject to rim model.

Know more about the warranty policy >>

Gallery

Mert Senkardesler : Awesome product
Turkey
1
Bernard Tan : Just to let you know the 29er carbon rims are awesome! I must say they are nicely craft unlike some carbon rim that I have from China. I have already built up & rode with it, very firm on sharp turn. Here is the picture of my bike & light bicycle rims.
Singapore
1
Bernard : Tomac Diplomat 29er with AM carbon rim 38mm.
Singapore
1
Jonas Silver : The green Evil bike is my current ride and go out as often as I can thrashing up the landscape. I truly enjoy your rims and glad to see that you have made a US presence, my only comment to that is that I like Industry Nine hubs, but would have loved to see you partner with Onyx Racing Products as well. These are the hubs I amcurrently running and they are flawless.Again, keep up the great work and I will keep telling everyone that they need to look at you for wheels and rims.
USA
1
Dean : Bike is much better with carbon!
USA
1
Marcel Hardegger : Specialized Stumpjumper S-Works 29" Mj. 2017 LB38
Switzerland
1

COMMENTS

J

Jerom 2018/05/21

Hi LB, what is the estimated delivery-time to Europe for a 29er mtb rim 38mm wide hookless tubeless compatible ? Thank you for your answer.


LightBicycle 2018/05/22

Hi Jerom, Here's a quote for your ref. Let me know if there's anything that I can help you with. 1. Shipping USD68.1 for two rims to the Netherlands by EMS, take 5~10 days. Note that the shipping cost doesn't include tax. 2. Rim cost: RM29C14, 29er 38mm wide rim, UD, matte, 32H, all mountain is USD185 each, heavy duty is USD193 each. Thanks, Lightbicycle


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A

Allen 2018/04/22

I am interested in a wheelset built with DT Swiss 350 boost hubs and Heavy Duty RM29C14 rims. Could you build the rear wheel with DT Swiss Alpine III spokes for extra strength at the flange? I'm a heavier rider and I ride in sharp rocky terrain with step hills.


LightBicycle 2018/04/23

Hi Allen, Currently, we do not have DT Swiss Alpine III spokes here. Is it DT Swiss competition spokes(2.0/1.8/2.0) or sapim cx-ray bladed spokes okay for you? Thanks, Lightbicycle


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M

Miguel 2018/03/07

Hello I would like to reuse some SunRingle Black Flag hubs, 24h. Would a HD back and an AM front support some agressive use from a 110kg heavy rider? What would be the total cost for rims, spokes and manhours for a wheelset? Also, what would be the estimated delivery time? Thank you Best Regards


LightBicycle 2018/03/08

Hi Miguel, Front AM and HD in the back is a very efficient wheelset, but building on your riding style and body weight. you can also consider asymmetrical wheelset. AM928 /EN928 (34mm) is the closest to RM29C14 (38mm wide). You can see the rim profile and comparison chart as the attachment. Which do you prefer? Then we can make a quotation on wheelset accordingly. Thanks, Lightbicycle


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M

Mark 2018/02/25

Hi Looking to get some rim tape before hand and would like to find out what size of rim tape fits this rim of internal of 31.6. Stan's tubeless tape is max at 30mm, would that be good enough or is that too short? Thanks


LightBicycle 2018/02/25

Hi Mark, For rim tape, the width close to rim inner width is good. So, 30mm rim tape width is good for this rim. Currently, the widest rim tape we have here is 25mm. It is also wide enough for RM29C14. Sometimes we use 18mm wide rim tape, and 2 laps to make sure the holes are completely covered. Thanks, Lightbicycle


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E

Ethan 2017/11/30

My current rear wheel is a 29er Roval Traverse, 28 hole, with DT Swiss internals and DT Swiss Revolution spokes. I broke my rim, so I want to replace it with one of yours rims. Will I also need to buy new spokes and nipples? What size and how much will it cost to include those parts with a rim? I will have my local bike shop build the wheel. Thanks.


LightBicycle 2017/11/30

Hi Ethan, Thanks for your inquiry! Do you know your spoke length? Normally, you have to buy new spokes and nipples for different rim design. But we can help to check. Thanks, Lightbicycle


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T

thomas 2017/10/25

Boa tarde.. gostaria de tirar uma duvida. precisava saber as seguintes medidas, o diametro interno e a espessura da borda do aro rm29c14


LightBicycle 2017/10/25

Hi Thomas, The inner wide of RM29C14 is 31.6mm, and it's 3.2mm for the rim edge. Pls find attached profile for RM29C14. Thanks, Lightbicycle


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S

Steven 2017/03/11

I am interested in a set of RM29c 14 rims 38mm wide. Could you please provide a quotation to supply 2 rims 28hole with 60 spokes either Swiss comp or safrim d light straight pull spokes (which is stronger)and 60 black brass nipples. If I was to purchase DT Swiss 350 hubs how much is upgrade to 52 T star ratchet.


LightBicycle 2017/03/14

Hello Steven, Thanks for your inquiry. Please find our quotations as below. All pricing in USD. -RM29C14 (38mm width): 465 /-15g, $185/pcs -DT competition straight pull spoke (or Sapim D-light spoke): $1.35/pcs including nipple -DT Swiss 350S hubs upgraded to 54T: $355/pair Thanks, Lightbicycle


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E

evan 2016/12/04

Can you drill these rims to have 27 holes?


LightBicycle 2016/12/05

Hello Evan, Thanks for your inquiry. Yes, we can manufacture the rims in 27H. Are both front and rear in 27H? Also, is it 27H spoke holes laced on rim evenly? If not, please help to show us some pictures of the spoke hole drilling pattern. Then we can manufacture accordingly. Thanks, Lightbicycle


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M

munding 2016/11/29

Hi. would like to purchase this. got a hub from my specialized stumpy 2014...would u be able to build the wheels for me if i send the hubs? i can send pics of my wheels if that helps


LightBicycle 2016/11/30

Hello Raymond, Thank you for your inquiry! For WM29C14, we have UD, matte, 32H rims in stock. The wheelset can be shipped around 3 days later after you place the order. The delivery takes another 7~10days. Does it work for you? Thanks, Lightbicycle


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M

Marc 2016/10/18

i wpuld like yo purchase a pair of these wheels, I have a set of 23 spoke hubs I would like to lace theae too...is it poasible for me to mail these to you to lace them with your spokes and nipples and then mail them back to me, what cost am I looking at for the wheel build on my supplied hubs thank you i would like red nipples and bladed spokes


Light-Bicycle 2016/10/19

Hello Marc, Thanks for your inquiry. It’s ok to send us hubs and build the wheelset for you. We can offer our address once you are ready to ship hubs to us. For bladed spokes, does sapim cx-ray work for you? Thanks, Light-bicycle


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