RECON rim AM928/EN928 All Mountain/Enduro

AM928 asymmetric rim profile carbon 29 inch mountain rims

Buy & Configure

All wheels are 100% customizable at Light Bicycle. If your preferred specs are not listed, feel free to contact us (sales@lightbicycle.com) with your special requirements described.

RIM SPECS

  • Size 29er
  • Series RECON
  • Use All Mountain/Enduro
  • Type Hookless
  • Tubeless Ready
  • Inner/Outer Width 28mm/34mm
  • Depth 28mm
  • ERD 583mm (not including nipple head dimension)
  • Weight AM 430+/-15g, EN 480+/-15g
  • Offset 2.6mm (asymmetric)
  • Weight Limit 120kg
  • Spoke Hole Angle ±5°
  • Spoke Tension ≤145kgf recommended
  • Tire Pressure 40psi max
  • Tire 2.1" ~ 2.7" recommended

Read more for TL tire pressure charts

TECH

Our 34mm wide rims have become our most popular asymmetric product thanks to its versatility. The 28mm inner width offers a wide and stable tire profile for your enduro tires, without becoming square-edged. You can easily get away with running 2.2’s or 2.5’s, but 2.3” - 2.4” tires are the sweet spot. The EN version has an extra wrap of 3k carbon fiber around the nipple bed, and reinforced sidewalls support G-Out forces, and increased rim stiffness, increasing suitability for aggressive riders over 200 pounds.

More air volume, a wider stance, and the bead seat retention system will keep your tires in place on race day and provide an incredibly solid tubeless platform. Rim stiffness is further increased with a deep profile, allowing for cornering and charging through rough terrain with more speed and confidence than ever before.

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WARRANTY

For Non-Pro Series Rims: From the date of purchase, 3-year Standard Warranty.

For Pro Series Rims: From the date of purchase, 5-year Pro Warranty as standard and an upgraded optional lifetime Premium Warranty with minimum charge.

Crash Replacement: It is applicable with the same period as the warranty time range that you purchased for the rims with 10% /25% discount for Non-Pro series /Pro series.

Learn More >>

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WHAT IS IN THE BOX

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Gallery

Light: Rims: AM928 (RM29C21) glossy 12K 32/32H With Holes external hole Hubs: DT SWISS 240S 15/110mm BOOST 6-bolt J-bend DT SWISS 240S 12/148mm BOOST Sram XD 18T Spokes: Sapim D-Light Black J-bend Nipples: Sapim Aluminium Black External Universal Weight: 1609.64g
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Light Bicycle: Rims: AM928 (RM29C21) 29er Recon series All Mountain 28/28H Hubs: DT SWISS 240S 15/110mm 12/148mm BOOST J-bend 6-bolt Spokes: Sapim D-Light Nipples: Sapim Aluminium Black Decals: Stealth Weight: 1426 grams
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Light Bicycle: Rims: AM928 29er Recon 32/32H Hubs: DT SWISS 240S J-bend 6-bolt 15 / 110mm BOOST 12 / 148mm BOOST Spokes: Sapim D-Light Nipples: Sapim Aluminium Black
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Kris: Super happy with my LB EN928 (RM29C21) Rims with i9 Hydra Hubs on my Hard Tail 29er.
Netherlands
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Light Bicycle: HUB-F Industry Nine Hydra 15 / 110mm BOOST J-bend 6-bolt Blue 32H Enduro Brand HUB-R Industry Nine Hydra 12 / 148mm BOOST Shimano MTB 10/11S Alloy J-bend 6-bolt Blue 32H 690T Enduro Brand SPOKE Sapim D-Light NIPPLE Sapim Aluminium Blue Polyax Secure Lock External EN928 (RM29C21) matte 3K 32H EN928 (RM29C21) matte 3K 32H
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LH: Custom enduro MTB build with Industry Nine Torch hubs / Sapim Race spokes and LB EN928 (RM29C21) rims.
Belgium
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COMMENTS

E

Elliott 2020/11/11

What is the difference between the EM928 and the AM928, there is a +$5 charge for the EN928? I don't see any information that gives the differences.


LightBicycle 2020/11/11

Hi Sir, My apologies, you might miss the information listed on the question mark "?". We will do some improvements so the feature can be more visible. In short, EN928 29er rim is a reinforced version of AM928, which requires more carbon fiber. Hence, the extra USD5. Thanks, Lightbicycle


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S

Steven 2019/09/25

Hi, Could you please provide quotation for 2 x en 928 rims 28 hole, 60 x dt swiss competition spokes (0r Sapim d light 296mm long) and 60 black brass nipples. Shipping to Australia. Regards, Steve


LightBicycle 2019/09/27

Hi Steven, It is okay to order carbon fiber bike mtb 29er rims and spokes. We sent quotation to your email address. Please check. Thanks, Lightbicycle


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D

David 2019/06/09

Hi, I'm considering building up an AM928 on a straight-pull non-boost rear DT 240s rear hub. Can you recommend spoke lengths? Thanks, David


LightBicycle 2019/06/10

Hi David, Could you be more specific about the wheelset specs? We would need a few things. 1. Are the hubs DT Swiss 240s, 15/100, 12/142mm, SRAM XD, center lock, straight pull, 28H? If not, pls advise the detailed specs. 2. What spokes are you going to build the wheel with? 3. Do you build on AM928 29er bike rims? Thanks, Lightbicycle


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A

Anders 2018/01/18

Hi Is this the same rim with modelname RM29C21?


LightBicycle 2018/01/19

Hello Anders, Thanks for your contact. The AM928 is the same as RM29C21. The new name AM928 is based on the rim inner width. Do you like to order the same RM29C21 rims or is there anything we can do for you? Thanks, Lightbicycle


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B

Ben 2017/12/24

Hello, can you tell me by how much the spoke holes are offset from the centreline of the wheel? Thanks :-)


LightBicycle 2017/12/25

Hello Ben, Thanks for your continued support. The AM928 asymmetrical rim is offset by 2.6mm. Rim profile attached for your reference. Thanks, Lightbicycle


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C

Charlie 2017/06/01

I'm interested in the AM928 as well as the RM29C14 rims for my MTB, I like the AM928s but can't figure out why they are so much more expensive. Is there something I should know that justify the exter $84 per rim?


LightBicycle 2017/06/02

Hello Charlie, Thanks for your inquiry. Please find the difference between RM29C14 and AM928 rims as below. -Both rims feature angled spoke holes, a modern u-shaped profile, have a bead lock and work with or without tubes. Both rims also have a low profile hookless bead with a large radius which helps reduce pinch flats. -Our 34mm asymmetrical rims will have more even spoke tension than our 38mm which results in a more durable wheel build. The low tension spokes will be at higher tension compared to a traditional rim which results in less wheel re-truing. -The 38mm are wider and deeper so the lateral and vertical stiffness are increased. Riders that prefer a more compliant ride would be happier on the 34mm rims. The 34mm rims with their new layup design have the best strength to weight ration in our lineup. -And it is 2 years warranty for asymmetrical rims/wheels. It is only 1-year warranty for symmetrical rims/wheels. Thanks, Lightbicycle


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L

Lasse 2017/05/08

Hi I damaged the rim on my sram roam 50 front wheel. I stead of buying a new front wheel I am considering rebuilding my wheels with carbon rims. the spoke count is 24 on the front and the back. Will the rims hold up to that? my wight is 90kg and i ride agressive xc on a hardtail. best regards Lasse


LightBicycle 2017/05/09

ello Lasse, Thanks for your inquiry. Normally, more spokes give the rim greater strength and rigidity. Most of our customers choose 28H or 32H rims which make wheels stronger. If you take XC riding only and go with AM928, it is okay to order the 24H rims also. Thanks, Lightbicycle


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J

Justin 2017/03/23

Hi, I am looking for another set of your rims. Should I just use the asymmetric rim for my rear wheel and a standard non asymmetric rim for the front? eg EN928 for rear All Mountain RM29C07 Just trying to keep the cost down and the non asymmetric rims are cheaper. Thanks


LightBicycle 2017/03/24

Hello Justin, Thanks for your inquiry. It will be great if you get both front and rear with asymmetric rims. You will get more even spoke tension with the asymmetrical rim which makes for a more durable wheel build. For symmetric rim, the spoke tension is different on both drive and non-drive side. However, if you are on a budget, let’s go with front RM29C07/ rear EN928. Thanks, Lightbicycle


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Mike 2017/03/21

Is the cost quoted above per rim or set of two?


LightBicycle 2017/03/22

Hello again, Our price is for one single rim. Thanks, Lightbicycle


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M

Mike 2017/03/21

Hello- I have some Industry 9 Hubs and Spokes, could I fit those to the AM928 32H? Thanks


LightBicycle 2017/03/22

Hello Mike, Thanks for your inquiry. Our AM928 rims will work with Industry 9 hubs. For spokes, may I know your rim ERD? Then we will check if you can reuse your spokes. Normally, you need to get some new spokes, because the rim ERD is different, so the spoke length will be different. Thanks, Lightbicycle


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R

Rean 2016/12/05

I am looking for 2 each AM928 at 415 grams/each. Do you have any in stock? How long will it take for shipment, costs for duty tax to California? Do you sell DT Swiss 240 boost hubs for front and rear? Thank you.


LightBicycle 2016/12/06

Hello Rean, Thanks for your inquiry. Below are the lightest AM928 rims we stocked for your reference. We cannot manufacture the rims at 415g. It is too light and not strong enough for all mountain riding. If you like lighter rims, you can go for RM29C19 rims. What do you think? Thanks, Lightbicycle


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E

Eric 2016/09/14

Hello, can you please send me a quote for AM 928 rims? I shopped with you before. Thank you! AM928 rims Qty:2 32H Matte, UD No Decal Valve Stem (I would like a set green decal on the side (not mounted on rim) please)


Light-Bicycle 2016/09/20

Hello Eric, Sorry for the late reply. Because we were on vacation in last 3 days. AM928 (34mm asymmetric): 430 /-15g, $259.60/pcs ($269-$9.4=$259.60) We will send a set of green decal shipped with rims. If you would like to place an order, please let me know and I will create the purchasing link for you. Thanks, Light-bicycle


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M

Mark 2016/09/17

Hi, Other than the dimensions, could you tell me the difference between these rims and the RM29C14 please? I see these are $85 more per rim. Thanks


Light-Bicycle 2016/09/18

Hello Mark, Sorry for the late reply. Because we were on vacation in last 3 days. Our asymmetric line of rims is inventoried so we can ship quickly. Yes it is more expensive (inventory and our product improvements cost more), but it does offer a higher level of service. The crash replacement coverage is increased and time period is doubled. With the addition of increased performance and durability etc. this could be a viable option for customers wanting something at this level. The hookless "lips" on the 38mm rim are 3.2mm wide vs. 3mm on the asymmetrical rim. Both are the same depth and are quite strong. Technically the 38mm yields a slightly higher impact resistance, but it's quite close. You will get more even spoke tension with the asymmetrical rim which makes for a more durable wheel build, so the 34mm has the advantage there. If you prefer a slightly more round and more natural tire profile with medium stiffness, go with the asymmetrical rims. If you prefer a wider more squared off profile with more volume, then go with the 38's. Thanks, Light-bicycle


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Nick 2016/08/28

I am interested in the EN928 rims but I see that you recommend a maximum pressure of 35 psi. I like to run Shwalbe Procore with about 65 psi in the inner chamber and about 24 psi in the outer chamber. Would using the Procore system be ill advised to use with the EN928 rims? Thank you, Nick


Light-Bicycle 2016/08/29

Hello Nick, Thanks for your inquiry. For the Procore system, we do not have a lot of testing information on it, but so far the customers we've heard from say it's working. Personally, I think our 34mm rims do not have tire burping issues. The larger issue is with g-outs, not impacts from too low of pressure (generally speaking), so I am not sure if Procore is super beneficial. Thanks, Light-bicycle


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D

damiano 2016/07/09

Hello, whats the difference with the AM29C14 ? why this newer rim is narrower ? And the asymetrical profil is for what ? Why there is a HD layer version if the original rim is strong enough for enduro ? thanks :=)


Light-Bicycle 2016/07/11

Hello Damiano, Thanks for your inquiry. Please find the difference between both rims below. Our 34mm asymmetrical rims will have more even spoke tension than our 38mm which results in a more durable wheel build. The low tension spokes will be at higher tension compared to a traditional rim which results in less wheel re-truing. The 38mm has slightly increased impact protection than the 34mm but both are quite strong, especially in the heavier/reinforced version of the rim. The 38mm are wider and deeper so the lateral and vertical stiffness are increased. If you prefer a slightly more round and more natural tire profile with medium stiffness, go with the asymmetrical rims. If you prefer a wider more squared off profile with more volume, then go with the 38's. Both rims come with a 1-year warranty. The 34mm rims have a 2-year crash replacement policy at 25% discount, and the 38mm have a 1-year crash replacement policy at 15% discount. Thanks, Light-bicycle


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