AM928 asymmetric rim profile carbon 29 inch mountain rims

INTERNATIONAL

NORTH AMERICAN

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.

AM928

EN928 USD +10

AM - This model is mid-weight and suitable for all mountain and trail riding. Can be used for light-duty enduro.
EN - This version has additional reinforcement and is suitable for more aggressive riders. It's the best choice for Enduro style riding.

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

asymmetric-bicycle-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

Version This is a required option.

AM928

EN928 USD +10

AM - This model is mid-weight and suitable for all mountain and trail riding. Can be used for light-duty enduro.
EN - This version has additional reinforcement and is suitable for more aggressive riders. It's the best choice for Enduro style riding.

Hole This is a required option.

32H

ROAD Product
Road rim brake: Stocked in 20h and 24h
Road disc: Stocked in 24h and 28h

MTB Product
MTB rims: Stocked in 32h. Only XC Flyweight rims are stocked in 28h as well as 32h
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 contact us.

Finish This is a required option.

matte

Weave This is a required option.

UD

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 +8

We use a tubeless tape with high tensile strength and only one lap is required so it is very light. It uses a natural rubber adhesive that does not leave any residue on the rims.

asymmetric-bicycle-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: 430.00g+/-15

Final total: USD 278.00+(3.5% paypal fee included)

Weight: 430.00g+/-15

Final total: USD 296.00+(3.5% paypal fee included)

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RIM SPECS

  • Size 29er
  • Use All Mountain/Enduro
  • Type Hookless
  • Tubeless Ready
  • Inner/Outer Width 28mm/34mm
  • Depth 28mm
  • ERD 583mm (not including nipple head dimension)
  • Weight AM 430+/-15g, EN 480+/-15g
  • Offset 2.6mm
  • Weight Limit 120kg
  • Max Rec. Spoke Tension 145kgf
  • Max Rec. Tyre Pressure 35psi
  • Recommended Tire 2.1" ~ 2.7"

Teleport to the wheelset building page.

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.

Cuopon code (15.00% off per rim): 2CPWY4D8

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.


Asymmetrical: The profile allows for equalized spoke tension which creates a stronger wheel that stays true.


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


Pro Series: from date of purchase, 3 years warranty
Non-Pro Series: from date of purchase, 15 months warranty

Crash Replacement: from date of purchase, 30 months with 10%+ discount subject to rim model

Know more about the warranty policy >>

Gallery

Eric Park : Hello,I just completed my bike. Please have a look at the photo!
USA
1

COMMENTS

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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M

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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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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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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