Introducing 38mm Wide MTB Rims In 29er & 650b

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These new 38mm wide 29” rims and 650B rims will be ready around December 15th. Please email us for pre-order.

Rim Size: 29er / 29-inch

Rim Construction: Tubeless, Carbon fiber

Rim Depth: 32mm

Width: External: 38 mm; Internal: 31.6mm

Rim weight: 450+/-15g for AM; 500+/-15g for DH

Rim Size: 27.5er / 650b

Rim Construction: Tubeless, Carbon fiber

Rim Depth: 32mm

Width: External: 38 mm; Internal: 31.6mm

Rim weight: 440+/-15g for AM; 490+/-15g for DH

Below is the advantage of these new wide rims.

*Widest, tallest profile and strongest: 38mm width and 32mm depth strongly improves traction, braking control and flat protection. It also provides super tire stability even with large tire at low pressure.

*Beadless & tubeless: hookless rim wall is more smooth and straight, the tire will touch rim walls fully and mounted perfectly, allowing to run lower tire pressure without risk of air loss or pinch flats.
hookless carbon rim walls is not only provides better tubeless seal, also it is more durable and far stronger than original hook design.

*Bead lock & less tubeless burping: the small ridges on each side of the drop channel.
Some riders concern the transition to hookless bead rims will cause tyres blowing off or an increased likelihood of burping air from tubeless tyres. So we add bead lock ridges to make them with any fear and ride confidently.

*Manufactured by new manufacturing process with one-piece-layer, to make carbon fiber layer continuous and rims strongest. We have the big layer-cutting machine to cut one-piece layer, for other factories, their cutting machine is not big enough .Read more about: Technology Improve Of Light-Bicycle Carbon Rims

*Terrain: downhill / freeride / Enduro / all mountain

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April 17th, 2014 | Light Bicycle

COMMENTS

Dave 2016/08/23

Hi, Thinking about my 4th set of LB rims, how long to get 38mm 650b rims only ready to ship out to me? Thanks, Dave Wallace

Light-Bicycle 2016/08/24

Hello Dave, It is nice hearing from you again. Thanks for your continued support. UD matte 32H RM650BC13 AM rims are in stock and will ship within 2 business days. EMS delivery takes another 4-7 days to arrive. Thanks, Light-bicycle

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brett 2015/11/09

Hi I want to buy a set of your 38mm wide all mountain shells 15 mm front 12x142 rear hope hubs xx1 driver dt Swiss competition spokes. Invoice me please

Light-Bicycle 2015/11/10

ello Brett, Thanks for your inquiry. We can build the 26er, 650B or 29er wheels with 38mm width rims. Which do you prefer? Then we will make the purchase link accordingly. Also, please check below wheelset specs. -Rims: 38mm width, AM version. Please find attached rim profile. Rim weave in 3k matte & UD matte are more popular. Which do you prefer? -Hubs: Hope pro2 evo front 15mm, rear 12*142mm for Sram xx1. Do you like black/ red/ blue/ silver/ gunsmoke? -Spokes: Black, DT competition spoke -Nipples: Black, DT pro lock nipples. Alloy or brass? Brass is heavier but stronger. Thanks, Light-bicycle

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Al 2015/02/17

very interested in a set of these- they don't appear to be available for purchase on the site? How do I place an order?

Light-Bicycle 2015/02/28

Hello Sir, Sorry for the late reply. We are on Chinese New Year vacation from Feb 15th ~ Feb 26th. We have 38mm wide for 26er /650B /29er rims. Please find below links and attached pictures. If you like to order, we can create the invoice accordingly for you. Thanks, Light-bicycle

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Eran 2014/12/16

Hello What is the pre-order special holidays price for two rims ? If one want a print on the rims - do you actually print it or use decals ? Thanks

Light-Bicycle 2014/12/17

Hello Eran, Thanks for your inquiry. Both of the hookless 38mm wide 650B & 29er rims are ready now. We have manufactured the rims and shipped out to our customers several day. The current price is already cheap, so we only can give a discount if it is more than 10pcs rims. And the discount is not much. It is USD5 cheaper for each rim. Wish you can understand. RM650BC13 (38mm wide 650B rim) hookless: 440 /-15g, USD180/pcs RM29C14 (38mm wide 29er rim) hookless: 450 /-15g, USD185/pcs Please find attached rims cross-section drawings. For rim weave, do you prefer 3k, 12k or UD? Matte or glossy? 32H? Normally, we do the decals on rims. Please find attached light-bicycle decals for reference. Is that ok for you? If yes, you can email us the graphic you like, then we can design it on rims for your check. It is normally USD60 for one-color and two-color graphic. Thanks, Light-bicycle

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Alain 2014/12/12

Are 38mm the widest rim you have (in 650b and 26") ? if so how much for a complete wheelset, shipped to USA, and weight ? 32H rims, UD matte finish Front: RM650BC13 (38mm wide 650B AM rim) hookless: 440 /-15g Rear: RM26C05 (38mm wide 26 AM rim) hookless: 420 /-15g Novatec (prefer blue, else red - match nipple color too) in 15mm (need to do 20mm as well, with 15mm adapter), 12x135mm rear shimano 10 spd. DT spokes. front D881-15mm thru axle ? rear ??? - 12*135mm thru axle for Shimano 8/9/10 (598g/pair, for aggressive riding).

Light-Bicycle 2014/12/12

Hello Alain, Thanks for your inquiry. Yes, the hookless 38mm wide 650B &26er rims are the widest rims we have here. If you like, we can build the wheelset as following specifics. -Rims: Front 38mm wide 650B AM rim (440 /-15g)/ rear 38mm wide 26er AM rim (420 /-15g), UD matte, 32H. Please find attached rims cross-section drawings. Hubs: Red, Novatec D881-15mm thru axle/ rear D882-12*135mm thru axle for Shimano 10s. It is ok to change the front 15mm thru axle to 20mm thru axle. It is USD17 added. Sorry, we only have black, red and white, no blue. -Spokes: Black, DT revolution spokes -Nipples: Red, Pillar PT 734. Wheelset weight: 1757 /-25g, USD628/pair The shipping cost is USD78 for one wheelset to USA by EMS Thanks, Light-bicycle

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