50mm Profile Meets Minimal Drag for Maximum Speed
Designed for high speed racing environments and modern road plus tire widths, the ULTEGRA WH-R8170 C50 TL wheelset shares the same all-carbon rim profile with its pricier DURA-ACE brethren but employs hub compatibility across both Shimano 12 and 11-speed cassettes.
For situations where aerodynamic performance takes top priority, the new ULTEGRA WH-R8170 C50 wheelset features an all-carbon, 21 mm internal, tubeless compatible rim and a super-fast cup and cone bearing hub that is compatible with both 12 and 11-speed cassettes.
With its focus on reduced drag and high stiffness, the WH-R8170-C50 wheelset is ideal for road racing. The high-profile rims make it possible to put more pressure into the corners, so that every bit of power is converted into forward momentum..
While a sophisticated D2 rim design and 50mm deep profile underline a focus on aerodynamic efficiency, the ultralight hubs keep weight to a minimum while greatly enhancing overall wheel stiffness.
The OPTBAL system emplys a 2:1 spoke ratio, resulting in twice as many spokes on the drivetrain side as on the opposite side. The technology counteracts the unbalanced tension caused by increasing cassette widths on the drive side. The OPTBAL construction balances out this spoke tension increasing the spoke lifetime and creating a much stiffer wheel overall.
The result is an extremely lightweight, ultra-stiff performance-driven road racing wheel.
The new Ultegra carbon disc wheel release consisting of the C36, C50, and C60 wheelsets was created to compliment Shimano's new 12-speed groupset but is conveniently reverse-compatible with Shimano's 11-speed as well, providing maximum flexibility across a wider range of drivetrains.
Tire type: tubeless clincher
External width: 28 mm / internal width: 21 mm
Profile height: 50 mm
Brake disc mount: Centerlock
Freewheel body: Shimano HG L / EV (11/12-speed)
Freehub type: Pawl
Bearing: cup and cone (polished, CBN coated)
Seals: contact sealings
Axle spacing: 12 x 100 mm / 12 x 142 mm (thru axle)
Aero spokes (Straightpull, double butted, bladed)
Spoke count: 24 (front + rear)
Front spoke pattern: double crossed
Rear spoke pattern: OPTBAL (left radial / right double crossed)
Rim construction: carbon fiber reinforced polymer (CFRP, painted)
Hubs, axles, quick releases: aluminium (anodized)
Spokes: stainless steel
11 and 12-speed compatible
Compatibility: cassette: CS-R9200-12, CS-R8100-12, CS-R8000-11, CS-HG800-11
Weight: 1564g (wheelset)
FREE Cassette Installation - Order a cassette along with a wheelset and we can install the cassette for free. Cassette installation requires special tools that not all our customers have. The cassette will be professionally installed and torqued to spec. Just add "Please install cassette" to your order notes at checkout and we'll take care of you.
B-Stock - This product has one or more B-Stock units available. These units can be purchased at a discount (see option select). B-Stock units were returned from other customers and may have missing or damaged packaging materials. These units are otherwise as new. The full manufacturer warranty applies. Click Here for more information.