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Build Your Falcon Pro RIM WR38 disc

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.


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RIM SPECS

  • Rim Model WR38 disc

    UCI-Approved >>

  • Material Toray T700 & T800 Premium Carbon Fiber
  • Size 29”/700C (ETRTO 622mm)
  • Series FALCON PRO
  • Intended Use CX/Gravel
  • Bead Type Clincher
  • Tubeless Capable Yes
  • Inner/Outer Width 25mm/32mm
  • Depth 38mm
  • ERD 563mm (not including nipple head dimension)
  • Rim Weight Standard 440+/-15g, Flyweight 395+/-15g
  • Profile Symmetric (0mm)
  • Max Cyclist Weight (on flat ground) Standard 135kg/ 298lbs, Flyweight 90kg/ 198lbs
  • Spoke Hole Angle ±9°
  • Spoke Tension 120~135kgf front disc side and rear drive side
  • Max Tire Pressure (with 28C) Hook: 80psi/ 5.52bar, Hookless: 65psi/ 4.48.bar
  • Recommended Tire Width 28C~50C

Read more for actual road tire width

TECH

The WR38 was built with one goal in mind: making the best rim possible for long distance gravel racing or riding.

With a massive 25mm inner diameter, the WR38 provides a stable profile for even the widest gravel tires.

Thanks to its mid-depth profile, the WR38 is deep enough to provide aerodynamic help when riding alone across gravel plains, but not so deep that is hard to control in crosswinds.

Whether you find yourself racing across the Midwest or month long backpacking trip, the WR38 might just be the perfect match.

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Learn More >>

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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Package_tubeless-valve-stems.jpg
Package_carbon-rim-tapes.jpg
Carbon-Rim-Falcon-Pro.jpg
Package_light-bicycle-user-manual.jpg
Package_tubeless-valve-stems.jpg
Package_carbon-rim-tapes.jpg

The WR38 was built with one goal in mind: making the best rim possible for long distance gravel racing or riding.

With a massive 25mm inner diameter, the WR38 provides a stable profile for even the widest gravel tires.

Thanks to its mid-depth profile, the WR38 is deep enough to provide aerodynamic help when riding alone across gravel plains, but not so deep that is hard to control in crosswinds.

Whether you find yourself racing across the Midwest or month long backpacking trip, the WR38 might just be the perfect match.

Daniel : Custom WR38 Falcon Pro Wheelset for my Gravelbike. With a Hub Dynamo in the front and the new DT Swiss 350 Hub in the back. Oilslick brass nipple and Oilslick decals. Incredibly light and stiff, and just beautiful to look at.
Germany
1
Angel : Over several years I have built several wheelsets using LB carbon fiber rims. R45, AR46, AR36 Disc, Custom AR46/AR56 to repurpose Roval hubs with 16/21 spokes. The results have been excellent, every single wheelset has been straight forward to build and perform just as good if not better than the famous brands (I've owned Zipp, Roval, Enve). The quality is excellent and customer service the same.
United States
1
Jim : WR38s on an Orca OMR. Well built, light, and they ride quite nicely!
United States
1
Lars : I have already build a Wheelset with your WR38 for my gravel bike and I really love them! So I want to build another set of wheels soon.
Germany
2
Light Bicycle : Rims: WR38 Disc Standard Hookless UD Paintless 24/24H With Drain Holes No Access Holes Hubs: DT Swiss 350 12/100mm 12/142mm Straightpull Centerlock 36T Shimano Road 11S Spokes: Sapim CX Ray Black straight pull Nipples: LB design brass oil slick external
1
Light Bicycle : Rims: WR38 disc standard hookless UD paintless 24/24H with drain holes no access holes Hubs: DT Swiss 240 EXP (36T) 12mm thru-axle centerlock Shimano Road 11s Spokes: Sapim CX Ray straightpull Nipples: Sapim aluminum black Price: 1183.4 USD (the up-to-date price may vary) Weight: 1430.88g
1
Kyle : Light bicycle is the real deal! The customer service is really unheard of in todays day and age! They were transparent and honest in the time I had to wait and provided status updates multiple time thru the build process. This is my first wheel set from them and am already considering another set of 650s! My skepticism of too good to be true was pleasantly proved wrong! They suggested some changes to my initial build such as spoke count and rims style based on my weight and riding style. My second ride on my carbon kona libre was very rocky and fast and I was a little nervous how they would hold up after some big rock drops… perfect! Obviously I would recommend them a hundred times over. If your a skeptic like me just do it! You won’t be disappointed!
United States
1
United States
0

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COMMENTS

D

Dave 2020/02/28

Can you please tell me why the WR38 disc (Standard) rim is $239 and the WR35 disc (Standard) rim is only $179? Why the big price difference? Thanks.


LightBicycle 2020/02/29

Hi Dave, The WR38 (32mm wide, 38mm deep) disc rim is from our Falcon Pro series, which is produced with a totally different technology and process (from the material, layup to molding). The WR38 is able to come out of the mold as a finished product. No post-production (painting, sanding, etc) applied what so ever. The scratch resistance ability is significantly increased. The rim is also stronger than traditional rims. On the other hand, WR35 (32mm wide, 35mm deep) is from our Falcon series, in which the rims are made with the traditional processes. It's also very strong, durable, lightweight, and the price is more friendly. If you are not a heavy/aggressive rider, the WR35 will be a good choice. Thanks, Lightbicycle


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J

Jay 2020/01/08

Hello, I am interested in a wr38 based wheel set for my gravel bike. The wheels would be used for gravel racing. Would a flyweight rim with 24 spokes, cx-rays, be strong enough for the abuse of racing? I weight 65 kg and commonly wear a 5 kg hydration pack. Also, I see that the flyweight rims are only listed as a global option. Could they be sourced for the North American office to be built with i9 torch hubs? Thank you.


LightBicycle 2020/01/09

Hi Jay, 1. Sorry that you missed the Christmas sale. We do offer a 5% returning customer if you are interested. 2. What would be your idea wheel build this time? We do have DT Swiss hubs/I9/Onyx hubs for this wide road disc wheelset. Will you be interested? Thanks, Lightbicycle


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S

Stan 2019/11/21

Is the flyweight version suitable for my use? Using 28hole front/back hubs I weigh 86 kg Thanks


LightBicycle 2019/11/22

Hi Stan, The flyweight version of WR38 32mm wide road disc rims is okay for your weight, but we recommend the front flyweight and rear standard combo, which would be more durable. Thanks, Lightbicycle


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D

David 2019/08/02

Hi, On the WR38 disc, what is the maximum tyre pressure if running a 32mm tyre tubeless? Thanks, David


LightBicycle 2019/08/03

Hi David, For our WR38C road disc, the max tire pressure is 130psi recommended max. It is with hook design, can hold high tire pressure. ​ Thanks, Lightbicycle


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G

Gavin 2019/07/19

I would also like a hookless version of this rim. I am riding 40mm tyres at 35 psi


LightBicycle 2019/07/19

Hi Gavin, Currently, we only have hook version for road wide disc rim WR38 rims. If you like, we can make hookless version for you. It takes around 30 days, it is okay for you. Thanks, Lightbicycle


LightBicycle 2019/07/20

Hi Gavin, Currently, we only have hook version for road wide disc rim WR38 rims. If you like, we can make hookless version for you. It takes around 30 days, it is okay for you. Thanks, Lightbicycle


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T

Tyler 2019/06/24

Is this rim available hookless? That would be preferred for a tubeless application.


LightBicycle 2019/06/25

HI Tyler, The hookless version of WR38 wide road 700C rim is currently not available. What is the reason that you want it to be hookless? How much tire pressure are you running with? What would be the target riding style? Thanks, Lightbicycle


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B

Brian 2019/05/03

Do you stock these in the North America warehouse? If not, what is the lead time to get them? Thanks, Brian


LightBicycle 2019/05/08

Hi Brian, We don't have the Falcon Pro WR38 road wide bike rim stock in North America warehouse just yet. It would be faster if you order from the Global warehouse. Usually, the rims would take about 1~2 weeks to ship. another 7~10 days for shipping and delivery. Thanks, Lightbicycle


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E

Elliot 2019/05/04

Hi, Do these rims have a braking surface for rim brakes? Thanks


LightBicycle 2019/05/05

Hi Elliot, It is okay to manufacture these rims with rim brake. But is your bike and brake caliper wide enough for 32mm wide wheelset? Thanks, Lightbicycle


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É

Érico 2019/04/28

Any chance they can be made for rim brake too? Do you have any plans of releasing a deeper version of the 30x56? Something like 80x30mm?


LightBicycle 2019/04/29

Hi Erico, What kind of riding do you do? Is it for non disc? The all-new WR38 road rim is with a wider section than normal non-disc rims. It's 25mm inner and 32mm outer. Will this be ok with your frame and caliper? Usually, calipers have limitation for the rim width. For deeper verson coming soon, it is 50mm deep, not 80mm deep. Is it okay for you? Thanks, Lightbicycle


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F

Fred 2019/04/27

1) Will this work with tubeless tires? 2) Are you planning to release Falcom Pro rims in other depths? What about new tubular rims? Thank you! I'm ready to place North American order after these questions.


LightBicycle 2019/04/27

Hi Fred, Thanks for your inquiry! Yes, these new falcon pro wide road disc rims are okay for tubeless tires. You can use rim tape, sealant and tubeless tires. They will work perfectly. For falcon pro series, another 50mm depth will be ready in one week on website. For tubular version, how much tire width do you use? i will check with our engineer team. Thanks, Lightbicycle


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