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Shimano Dura-Ace 9100 C40 Carbon Road Wheelset - Clincher

Shimano Dura-Ace 9100 C40 Carbon Road Wheelset - Clincher
Sale $1,202.31$1,581.99 24% Off

Item # SHI00DH

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Item # SHI00DH


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Shimano's Dura-Ace 9100 C40 Carbon Road Clincher Wheelset brings an aesthetic update to pair perfectly with the new groupset and carries over the speedy stability we've come to expect from a Dura-Ace wheels. As with its C35 predecessor, the C40's weight is centered at the hubs to reduce rim and rotational weight so it kicks up to speed fast. Combine that snappiness with a 35mm rim depth and you get the ideal balance of lightweight responsiveness and aerodynamic speed to manage a wide variety of terrain.

The rim's construction, which is ultimately responsible for the wheelset's devoted following, remains the same. It involves an alloy body that's extruded and machined to thin the walls down to an almost two-dimensional 0.6mm wall thickness—about half of the typical alloy rim wall thickness of 1 to 1.3mm.

This obviously reduces weight to a minimum, but it also means the overall structure is less sound, so Shimano buttresses the rim with a jealously guarded carbon laminate process. The only information that the brand is willing to divulge about this process is that phosphoric acid is used to anodize the alloy, and then variable carbon layers are fused to it in order to boost its structural integrity without undoing the weight gains made during the milling process.

The result is a lightweight rim that's as durable and radially comfortable as alloy but still manages to approach the weight and drive stiffness of carbon. It also features an alloy brake track, which means it doesn't sacrifice stopping power in pursuit of weight reduction and also doesn't carry the risk of being distorted by internal pressure from the tube when it heats up during long, hot descents. Altogether, each component of the wheel has been designed as a symbiotic system for the ultimate in aerodynamics, efficiency, and pure speed.

  • A versatile wheelset that balances weight and aerodynamics
  • Machined aluminum with carbon laminate drops grams, not stiffness
  • Aerodynamic mid-depth rims hold speed without impeding climbing
  • Durable titanium freehub body reduces weight
  • Wide hub flanges boost wheel stiffness
  • Aluminum brake track provides reliable braking across conditions

Tech Specs

Rim Material:
aluminum with carbon laminate
Wheel Size:
Tire Type:
Rim Depth:
Rim Width:
[external] 20.8mm
Brake Compatibility:
Front Axle:
Rear Axle:
Spoke Count:
[front] 16, [rear] 21
Claimed Weight:
[front] 674g, [rear] 834g, [set] 1508g
Recommended Use:
Manufacturer Warranty:
3 years

Reviews & Community


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Avg. ride time: 9h 11m per week
  • Average ride time is based on Strava activity over the last 3 months. Give your reviews credibility by connecting your account.

Don't believe the whiners

    Just what I was looking for in a wheel-set. Not too deep section, stiff, light, and reliable braking, and sweet Shimano hubs. Clearly superior to the stock Fulcum S 19's on my Tarmac.

    Avg. ride time: 4m per week
    • Average ride time is based on Strava activity over the last 3 months. Give your reviews credibility by connecting your account.


      Shimano dropped the ball on these wheelsets, hence the price

      They pretty much rebadged the C35s as C40s

      If you've been wanting C35s for the longest time now is your best opportunity.

      Do you own these? Almost every review on the net notes that they aren't true 40s. So you go ahead with a one star rating without noting anything about the feel of the races, how true the wheel is or even how much run-out they have. How about the weight? Do they have any flex in them when you lean on them? What is the drag like in a crosswind? Anything to say about the difference in the hubs compared to the 9000 since your brought up the C35s?

      Sorry, but I'm finding your review lacking 9/10s of the information besides the one thing that every other review on youtube or bicyclewhever.com would say right out the gate.

      Unanswered Question

      Rider weight limit? Flexing for heavier riders?

      Unanswered Question
      Avg. ride time: 49m per week
      • Average ride time is based on Strava activity over the last 3 months. Give your reviews credibility by connecting your account.

      Which version of the Clincher is this? WH-R9100-C40-CL or WH-R9170-C40-TL? Regular Clincher or Tubeless?

      Is this description for the c35 or c40? Looks like it's for the former