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27.5″ – RM650BC09 Flyweight – 27mm Carbon Rim

27.5″ – RM650BC09 Flyweight – 27mm Carbon Rim

We are in the process of updating our RM650BC09 Flyweight Rims and Graphics options and, as a result, are currently very low in stock. To see our stock and purchase the RM650BC09 Flyweight at our Clearance Pricing, please visit our Fall Clearance Rim Page.

The Flyweight is a new series of rims from Light Bicycle. Targeted specifically towards racers who seek every possible edge on the race course. Our goal was to produce the lightest possible rim without sacrificing performance.

Drawing on our engineers’ years of experience and countless revisions in each step of the manufacturing process, we are able to produce a strong and stiff XC rim while dramatically reducing the weight.

Construction:  We used a special uni-directional pre-preg with a very low fiber areal weight. This is an exclusive process to our Flyweight rims. To further reduce the weight we used a blend of Toray T700 and T800 with 28h and 32h specific layups. We opted for a new subtle ultralight waterslide graphic in glossy black with a matte finish overtop in the spirit of keeping these as true cross country race oriented rims.

Please note that the price is per rim. We stock rims in UD Matte in a 32 and 28 hole count.

Read more about our technology here.


USD $284.90

  • Options

    We generally have 28 and 32 hole counts in stock. The 32 hole count has the lightest rotational weight. 20 or 24 hole count can be special ordered and will take an additional 3-4 weeks.

    • USD $
    • USD $
    • USD $
    • USD $

    Add Tubeless Valve?

    • + 8 USD $
  • Rim Choice

    Want a different blank rims without graphics or a different weave or finish? We can special order it for you from our factory!

    Orders typically take 3-5 weeks, however faster shipping from China is available. Special order rims are non-refundable.

    • USD $
    • 25 USD $

    Optional Graphics Choices

    • 0 USD $
    • USD $

    Optional Glossy Finish

    Matte is the most popular, and is usually in stock.

    • USD $
    • USD $

    Optional Weave Choices

    The 12k and 3k weave are for aesthetics and do not significantly alter the rim's strength, performance or weight.

    • USD $
    • USD $
    • USD $

    Faster Shipping (optional)

    If you have chosen a special order above (hole count, finish, or weave) your order will take 3-5 weeks because we have to special order it from China.

    If you want faster shipping, you can pay an extra fee to have the order shipped faster from China. This will save at least a week in shipping time.

    Please note you will still have to pay the standard shipping charges at the end of the order.

    • 25 USD $

    Special Order Disclaimer

    • USD $

Quality Guarantee

Each rim is built using the best industry practices to ensure your investment can stand the test of time.

We back our rims with a 15 month warranty and a 30 month crash replacement policy.

We carry a large inventory and can ship quickly, we even offer overnight shipping!

Technical Specs

  • Wheel Size: 27.5″/650b
  • Tire Type: Tubeless recommended, works with tubes also
  • Recommended Tire: 1.9″-2.3″
  • Recommended Pressure: 40 Psi Maximum
  • Inner Width: 22mm
  • Outer Width: 27mm
  • Depth: 24mm
  • Max Rider Weight: 90kg (200 pounds)
  • Warranty: 1 Year
  • Crash Replacement: 2 Years
  • Average Weight: 270g

Wheel Building

  • Recommended Tension: 125 kg/f
  • ERD (bed to bed): 552mm
  • ERD (Top of standard nipple head): 554mm
  • ERD (hex/squorx/double square head): 555mm
  • 6 Degree angled spoke holes, arrow on rim bed shows direction
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