XC925 asymmetric rim profile carbon 29 inch carbon rims mtb

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.

Flyweight (best for front)

Standard (good for rear and front)

Our XC rims are front and rear specific.

The front rim uses a lighter pre-preg and a blend of Toray T700/T800 as well as Flyweight internal spoke hole patching.

The rear rim uses a continuous spoke bed and a stiffer reinforced layup design to create a balanced feel between the front and rear wheels.

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.

paintless

Our Recon Pro rims come out of molds as a finished product, with a scratch resistant and near flawless finish, eliminating the need for sanding or painting (Paintless Finish).

Weave This is a required option.

UD

Rim Warranty This is a required option.

3 Years

5 Years USD +25

Lifetime USD +50

For Recon Pro Series ( MTB rim), Falcon Pro (Future Road rim) and Drift Pro (Fatbike rim), 3-year warranty is set as standard, and optional 5-year or Lifetime Premium Warranty are kindly offered to purchase with minimum charge respectively.

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

29er-mtb-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.

Flyweight (best for front)

Standard (good for rear and front)

Our XC rims are front and rear specific.

The front rim uses a lighter pre-preg and a blend of Toray T700/T800 as well as Flyweight internal spoke hole patching.

The rear rim uses a continuous spoke bed and a stiffer reinforced layup design to create a balanced feel between the front and rear wheels.

Hole This is a required option.

28H

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.

paintless

Our Recon Pro rims come out of molds as a finished product, with a scratch resistant and near flawless finish, eliminating the need for sanding or painting (Paintless Finish).

Weave This is a required option.

UD

Rim Warranty This is a required option.

3 Years

5 Years USD +25

Lifetime USD +50

For Recon Pro Series ( MTB rim), Falcon Pro (Future Road rim) and Drift Pro (Fatbike rim), 3-year warranty is set as standard, and optional 5-year or Lifetime Premium Warranty are kindly offered to purchase with minimum charge respectively.

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.

29er-mtb-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: 360.00g+/-15

Final total: USD 268.00+(3.5% paypal fee included)

Weight: 360.00g+/-15

Final total: USD 295.00+(3.5% paypal fee included)

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RIM SPECS

  • Size 29er
  • Use Cross Country
  • Type Hookless
  • Tubeless Ready
  • Inner/Outer Width 25mm/30mm
  • Depth 23mm
  • ERD 594mm (not including nipple head dimension)
  • Weight Flyweight 295+/-15g, Standard 360+/-15g
  • Offset 2mm (asymmetric)
  • Weight Limit 100kg
  • Spoke Hole Angle ±5°
  • Spoke Tension ≤145kgf recommended
  • Tyre Pressure ≤35psi recommended
  • Tire 2.1" ~ 2.4" recommended
MTB carbon rim profile

Teleport to the wheelset building page.

Our new generation of Flyweight XC rims are updated with a wider profile and a front/rear specific layup. They are targeted towards cross country racers who seek every possible edge on the course.


Our goal with this iteration was to produce the lightest possible rim-set without sacrificing performance or reliability. The ultralight front rim utilizes a blend of Toray T700 and T800 carbon fiber and receives our spoke hole patching treatment, which maximizes weight reduction. The rear rim uses a continuous spoke bed and a stiffer reinforced layup design to create a balanced feel between the front and rear wheels.


Now with a wider profile, increased resistance to impacts, as well as a tailored front/rear design, the XC925' build the ultimate XC race wheelset.


ExoTek: Our Recon Pro rims are designed to come out of the molds as a finished product which requires the most high quality manufacturing processes. The new resin system has superior consistency and forms the smoothest and most durable finish we’ve ever created. From a lengthened fatigue life to more robust interlaminar bonds, ExoTek raises the bar in performance and aesthetic.


EcoTek : Built from the highest grade of steel, we’ve engineered a completely new series of molds and developed a process that delivers a near flawless product. More time is taken through the layup and assembly process so that no post-production finishing is required. This new process is more environmentally friendly because it requires less heating cycles, no sanding, and no painting.


BlackTek : Rims featuring BlackTek come out of the molds as a finished product. Traditionally, rims are wet-sanded to remove imperfections like excess resin and then sprayed with a clearcoat. BlackTek rims come with a factory finish and the outer carbon layer is never disturbed after the curing cycle is completed. This is the most hard wearing and scratch resistant finish we have ever produced.


Flyweight: Our lightest construction method uses an exclusive unidirectional prepreg with a very low fiber areal weight. A variable thickness nipple bed reinforces key areas around the spoke holes, eliminating excess material. A blend of Toray T-700 and T-800 offers the weight saving benefits of T-800 carbon without compromising the strength or stiffness of the rim.


Asymmetric : Over the years, we’ve optimized an asymmetric profile that maintains the outright impact performance of a symmetric design but enjoys the benefits of offset spoke holes. This design significantly equalizes spoke tension between drive and non-drive spokes which results in a stronger wheel build that stays true longer.


Tubeless : All of our rims are tubeless compatible with bead seat retention. In most cases a floor pump is all that is needed to seal our rims. The bead shape is tailored to each rim width to achieve the best fit. Our hookless and clincher profiles have a smooth radius to reduce the chance of a pinch flat.


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 >>

COMMENTS

R

Ralph 2018/11/20

Hi, I am a somewhat heavier rider (95kg). I am considering these rims for a custom set for my new fully (to be used during the cape epic). I would assume you would not recommend me to use the flyweight rim, but would a set of two standard rims work for me? Thanks, Ralph.


LightBicycle 2018/11/22

Hi Ralph, If you are not an aggressive rider but wanted a strong setup, the standard version would work well for you. What would be the tire width that you plan to use on the wheels? We can manufacture a stronger version for you since you are considering building a strong wheelset. What kind of riding you usually do? If you are riding both XC, AM, even EN, I would recommend you to check out the AM927 (33mm wide, 25mm deep). We can also make a stronger version of this rim for you of course. It would be priced higher because of the additional carbon fiber and extra work. Will this be ok with you? Thanks, Lightbicycle


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J

Julius 2018/11/18

Gudday lightbicycle I'm xc rider my weight its almost 84kgs As of now i'm using aluminum rims Most of our rides are trail Front tire 2.25. 29" Rear tire 2.1 29" I'm planning buy your product carbon rims.any recommendation best for me? Thanks julius


LightBicycle 2018/11/26

Hi Julius, What feature are you after for the carbon rims? Lightweight? Strongness? Scratch proof? I have three 29er XC rim model to recommend, RM29C06 (lightweight), RM29C19 and XC925 (scratch proof). Note that only the XC925 is with the asymmetrical design, it provides better spoke tension balance between drive-side and non-drive side. It will make rims/wheels more durable, Thanks, Lightbicycle


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J

Julius 2018/11/18

Gudday lightbicycle I'm xc rider my weight its almost 84kgs As of now i'm using aluminum rims Most of our rides are trail Front tire 2.25. 29" Rear tire 2.1 29" I'm planning buy your product carbon rims.any recommendation best for me? Thanks julius


LightBicycle 2018/11/19

Hi Julius, What feature are you after for the carbon rims? Lightweight? Strongness? Scratch proof? I have three model to recommend, RM29C06 (lightweight), RM29C19 and XC925 (scratch proof). Note that only the XC925 is with the asymmetrical design, it provides better spoke tension balance between drive-side and non-drive side. It will make rims/wheels more durable, You can check out all these three 29er rim details at the link below: RM29C06: https://www.lightbicycle.com/bead-hook-less-rims-carbon-29er-light-bike-rim-tubeless-compatible.html RM29C19: https://www.lightbicycle.com/U-shape-29er-rim-30mm-wide-hookless-MTB-bike-carbon-rims-tubeless-compatible.html XC925: https://www.lightbicycle.com/XC925-asymmetric-rim-profile-carbon-29-inch-carbon-rims-mtb.html Thanks, Lightbicycle


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R

Rick 2018/11/11

Hi, how do these new flyweight versions compare to the older RM29C06 flyweight rims that are compatible for both front and rear use? Also would you be able to make these with only 1mm offset?


LightBicycle 2018/11/12

Hi Rick, All of our Recon Pro rims are paintless. Applied in model XC725, XC925 of Recon Pro Series, our lightest construction method uses an exclusive unidirectional prepreg with a very low fiber area weight. A variable thickness bed reinforces key areas around the spoke holes, eliminating excess material. A blend of Toray T-700 and T-800 offers weight saving benefits of T-800 carbon without compromising the strength or stiffness of the rim. May i know your weight and riding style? Then we can check whether it is okay to use flyweight version for both front & rear on these XC 29er rims. Offset is for enlarge the angle of drive side while building the wheelset, so that it can add the lateral stiffness. It should be keep at least 2mm offset. Why do you prefer 1mm offset? We can check with our enigineers. Thanks, Lightbicycle


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J

Jim 2018/10/26

Greetings. I am considering using your rims for a custom wheel set. I do mostly trail and XC riding on a full suspension 29er. Weight is approximately 78 kg. Trails are dry, and rocky and steep around here. Running 2.35 tires front and rear. I have always appreciated light bikes and wheels. Can you suggest a rim set for me? Thanks. Jim


LightBicycle 2018/10/31

Hi Jim, 1. The rims(XC925) you are looking at is our newly launched paintless series RECON PRO. As you can see, we offer two version of it, standard (360g+/-15) and the flyweight (295g+/-15). According to your description, the trail you ride on is normally steep and rocky, so I would recommend you to go with the standard version just to be safe. The flyweight version is made for those who ride light XC or lightweight rider. Since you are looking for a light set, XC925 would be a good fit. 2. Your 2.35" tires would be ok on XC925 29er rim. Thanks, Lightbicycle


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G

Gareth 2018/10/04

Hi. I weight 78kgs and am building up a hardtail. Given the info above are any of your “flyweight” rims suitable for a rear rim XC bike build? Or are you recommending the flyweight for the front and standard for the rear on all your rim options (including the 22mm internal diameter carbon XC rim) Thanks Gareth


LightBicycle 2018/10/07

Hi Gareth, Sorry for the late reply. We were on National Day vacation from Oct 1st~6th. We are just back to work today. Do you ride aggressively? If you like these light XC925 rims, we definetely recommend customer to order front flyweight version/rear standard version. It is more durable and it is a good combination. May i know your tire width please? Do you like rims only or complete wheelset? Thanks, Lightbicycle


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F

felix 2018/09/24

hello. for XC925 rims, it is stated that the front and rear rim are made differently. How do we order 1x front rim, and 1x rear rim? i can't choose from the product page. thanks.


LightBicycle 2018/09/25

Hi, Felix Apology for the confusion. There's no so-called front and rear option. If you want two rims with the different configuration, all you need to do is choose the specs you want and add the rims to the cart separately. Or we can create the invoice for you if you think the process is too much trouble. The reason why we specific about the flyweight as front and standard version as the rear are that the flyweight version rim won't be strong enough as a rear wheel. We would like to list out our recommendations for you so you can get the best performance with your wheelset. Feel free to contact us by mail or instant message tool at the right bottom of every page. We are here for you. Thanks Lightbicycle


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A

Andrew 2018/09/21

Which rims do you recommend for tubeless, 700c, all mountain (not XC or Enduro) riding?


LightBicycle 2018/09/25

Hi, Andrew We have several models available. Are you looking for our new paintless series or the painted rims? The paintless rims are all categorized as RECON PRO (AM927 with 33mm width, AM930 with 36mm width), and all painted rims are in RECON category (AM933 with 39mm width, AM928 with 34mm width, RM29C19 with 30mm width, etc). May I learn more about your riding so I can make a proper recommendation for you? 1. Your weight 2. The tire width you use? 3. The riding terrain or riding style you do We also sent an e-mail to discuss further details with you. Please do check with your inbox. Thanks Lightbicycle


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