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27.5″ – AM740 / EN740 – 46mm Carbon Rim

27.5″ – AM740 / EN740 – 46mm Carbon Rim

New for 2017, the AM740 / EN740 is Light Bicycle’s premium 27.5” plus rims.

Time to upgrade those super heavy alloy plus rims that have been dented into oblivion!

Plus sized tires are heavier, so often riders will use paper-thin sidewalls to reduce rotational weight as much as possible. With the AM740’s you will drastically reduce weight so you can afford to run more legit tires that won’t be sliced and diced and costing you downtime (and cash!).

Not only are they dramatically lighter, they are stronger as well. Alloy rims at low pressure dent very easily and ride sluggish. With the AM740’s you can unleash a new level of performance from your plus bike.

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

Special orders for custom hole drilling and finish can be ordered below.

Full AM740 wheelsets available with Onxy & I9 Hubs

See full technical specifications below or read more about our technology here.


USD $306.90

  • *Rim Version

    The AM version or Standard version is the most popular version of the rim and the best choice for most riders.
    The "EN" or Heavy Duty version is 50g heavier and stiffer due to the additional reinforcement. The thicker walls can handle heavier (200lbs+) and extreme enduro riders. For most riders it is only used on the rear wheel. (See the difference in rim construction.)
    Adding the EN / Heavy Duty option may result in a delay in shipping. Please contact us if you are in a rush and we can confirm inventory levels.
    • USD $
    • 11 USD $
  • Options

    *Rim Decal Color

    • 0 USD $
    • 0 USD $
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    See rim decal examples above or click here. Decals are easily replaceable and can be removed.

    Add Tubeless Valve?

    • + 8 USD $
  • Rim Choice

    We stock UD Matte rims with a 32h hole count. If you prefer a different hole count, weave or finish, we can special order it for you from China.

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

    • USD $
    • 25 USD $

    Optional Hole Count Choices

    We stock UD Matte rims with a 32h hole count. Other hole counts may take an additional 3-4 weeks.
    • USD $
    • 0 USD $
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    • 0 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 $

  • Additional Information

    If you have any additional requests, concerns or questions please enter them below.

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 from the date of purchase.

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: 2.7″-3.1″
  • Recommended Pressure: 30 Psi Maximum
  • Inner Width: 40mm
  • Outer Width: 46mm
  • Depth: 28mm
  • Max Rider Weight: 135kg (297 pounds)
  • Warranty: 1 Year
  • Crash Replacement: 2 Years
  • Average Weight: 480g

Wheel Building

  • Recommended Tension: 125 kg/f
  • ERD (bed to bed): 544mm
  • ERD (Top of standard nipple head): 546mm
  • ERD (hex/squorx/double square head): 547mm
  • Asymmetric Offset: 2.8mm
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