85mm wide carbon 26er fat bike single wall flyweight rim hookless tubeless compatible

BUYING OPTIONS

Global warehouse ship to most countries while the North America warehouse only ship to the United States and Canada

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RIM

Hole Count This is a required option.

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.

32H

Spoke hole drilling This is a required option.

fat-bike-rim-center-drilling

centered

Finish This is a required option.

matte

Weave This is a required option.

UD: uni-direction carbon fiber

UD

Rim Warranty This is a required option.

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

5 Years

Lifetime USD +50/rim

Decal This is a required option.


The new graphics are included and available in 7 colors. The decals are now easily replaceable so you can keep your rims looking fresh.

No

Stealth

Blue

Green

Magenta

Orange

Red

Yellow

 flyweight-fat-bike-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 Go to rim inventory page

Non-Stocked, typically ships within 1-2 weeks Go to rim inventory page

Recon Pro orders start shipping in October.

- + PCS

Weight: 500.00g+/-20

Final total: USD 340.00+

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RIM SPECS

  • Size 26er
  • Use Sand, Snow, Singletrack
  • Type Hookless
  • Tubeless Ready
  • Inner/Outer Width 80mm/85mm
  • Depth 17mm
  • ERD 544.5mm
  • Weight 500+/-20g
  • Offset 0mm (symmetric)
  • Drilling Offset 10mm
  • Weight Limit 120kg
  • Spoke Hole Angle ±8°
  • Spoke Tension ≤135kgf recommended
  • Max tyre pressure ≤25psi recommended
  • Tire 4.3" ~ 5.0" recommended

Teleport to the wheelset building page.

Is it possible to get fatter and lose weight at the same time? Thanks to a lightweight single wall design, the FS680 rims save a pound of rotational weight compared to most alloy wheelsets, all while adding lateral stiffness. Weighing in at just 500g per rim, you’ll drop a significant amount of rotational weight from your fatbike without compromising strength or stiffness.


Example Wheelset Build: ONLY 1700G!
Rims: FS680
Hubs: Tune Fat King/Fat Kong
Spokes: Sapim CX-RAY
Nipples: Sapim Polyax Secure Lock


Each wheel from Light Bicycle is built using the best industry practices by professional builders, ensuring your investment stands the test of time.


Tech Notes:
1. Bladed spokes or Sapim D-Light's are recommended for the FS680 wheelset. DT Swiss Comp Race or Revolution spokes stretch out too easily and would cause a poor wheel build with a single wall rim.
2. Use nipples with a standard head or Sapim Hex nipples only. Nipples with a tall head will cause an issue with the tubeless tape.
3. DO NOT use tire levers to install a tire or to unseat a tire on FS680 rims. The wall thickness is quite thin just past where your tire sits, and you may damage this area by prying on it!

Flyweight Single-Wall Design: The Drift Pro fat bike rim drops more than a 100g from our traditional double wall carbon rims by moving to a single wall design with our Flyweight technology, which uses a lighter pre-preg and a blend of Toray T800 and T700 carbon fiber. Single-wall engineering is about more than just weight savings. By allowing the rim to flex vertically on impact, the design offers a stronger and more comfortable ride experience compared to double wall rims.


Reinforced Spoke Hole: Thanks to a special mold design and molding process, each spoke hole is accurately reinforced. This means that the area around the holes thickens to 3mm, allowing for the use of spokes at high tension without the need of a washer. This reinforced spoke hole has been tested on the new single fat bike rim up to 300kgf without failure - far more than the our recommended 100-115kgf spoke tension.


Angled Spoke Holes: The ideal angle for spoke holes is 7°. By drilling the holes at these angles, the build process is improved by reduced stress at the nipple/spoke interface.


Special Foamed Material Used for Building: Instead of using an air bladder, we apply a lightweight foam material to build the shape of the cavity on both sides of the rim. Unlike a bladder, the foam material provides dampening and remains inside the rim after the manufacturing process is complete. Because no holes are required to remove the foam, the continuous strength of the carbon fiber is maintained.


Tubeless Compatible: By using a slope design on the bead, the Drift Pro fat bike rim allows for easier tubeless tire installation and provides a better seal between the rim and tire. The shape of the bead seat reduces the chance of a tire burping at low pressure.


Anti-Accumulation Profile: We've maintained a smooth exterior which is designed to prevent mud, sand or snow accumulation when riding, cutting down on any unnecessary weight or drag.


Hookless Design: Our hookless design has consistent carbon compaction and there are no voids in the layup, providing the rim with a greater capability to withstand sharp impacts.


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.

Know more about the warranty policy >>

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COMMENTS

M

Mike 2019/02/04

can I use a 26x4.0 tire with the FS680 Pro rim? Also any plans to offer this rim from the North America plant?


LightBicycle 2019/02/05

Hi Mike, Yes, for FS680 fat bike rim, the recommended tire width is 4.3"~5.0". Currently, these new fat bike rims still haven't arrived our US warehouse yet. If you are interested in these rims, you can place the order directly to our global warehouse. The shipping cost is USD57 for two fat bike rims to USA by EMS delivery. The shipping is not high. Please let us know if you have any other questions. Thanks, Lightbicycle


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G

Gregorio 2018/12/14

Can you run this rim at 3-5psi tubeless for snow riding?


LightBicycle 2018/12/15

Hi Gregorio, Which fat bike tire brand are you going to use? What is the tire size? May I also know your weight? The tire pressure will depend both on the tire and riders. I will check accordingly for you. Thanks, Lightbicycle


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M

Marc 2018/10/09

Do you anticipate this rim profile will be available for 650B soon?


LightBicycle 2018/10/10

Hi Marc, In fact, we do have future plans for making a 650b version of this rim (single wall profile). I will let you know when 650B fat bike rim is ready. Thanks, Lightbicycle


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