BIKE AHEAD COMPOSITES impeller 27.5 "| 650B ac-650b biturbo RS Clincher MTB
Carbon wheelset with striking design
The ac-650b Biturbo RS is the consistent further development of the known ac-650b Biturbos. Great attention has been paid to the more considerable decrease of the weight and maintaining high lateral stiffness. The result on the one of the best STW values (ratio stiffness / weight) available at MTB wheelsets. One reason is the visually aggressive spoke design of the wheels.
Instead thin with a variety spokes, the rim is connected by 6 hollow carbon spokes to the hub. This results in a higher rigidity and a simultaneous reduction in weight compared with the usual thin steel spokes, resulting in better acceleration and handling.
In the manufacture of the wheels no high-modulus fibers may be used. Thus, the wheels are resilient and absorb shocks better.
In addition, the rim ring is not damaged so quickly through the lower brittleness as edges. The high strength of the carbon fibers, the rim hardly deform, so they do not have to be centered.
The rims and spokes are of the development and manufacture of composites Ahead itself and are exclusively produced in Germany.
Quote BIKE MAGAZINE 05/13: results of this comparative test: "bike ahead" has the best 29er wheelset with the lowest weight, by far the best acceleration and the highest ever recorded in a 29er wheelset stiffness.
Ahead Composites granted up to 3 years crash replacement service for this product.
intended use: All Mountain, Cross Country
Wheel Size: 27.5 inches
Disc mount: 6-hole
Max. Disc size: 185 mm
Front: quick release, 9 mm thru bolt, 15mm thru-axle, 15 x 110 mm Boost thru axle, Lefty or Predictive Steering RS-1
Rear axle: quick release, 10mm Thru Bolt, 12 x 142 mm thru-axle (X-12, E-Thru, Maxle 142) or 12 x 148 Boost thru axle
Hub color: black
Rim Type: for folding and clincher (clincher), Tubeless Ready
Felgenbriete inside: 27 mm
Rim height: 25 mm
Freewheel: 8-, 9-, 10-speed Shimano | SRAM compatible, 11-speed SRAM XD (XX1, X01, X1, ...)
Bearing Type: stainless steel bearings or ceramic (optional)
Lateral stiffness: 85 N / mm
Area: 3-K or 12-K carbon fiber, mat or glossy lacquered (optional)
Color: Paint the wheel set in desired color (on request, with supplement)
Weight: (natural carbon) from 1100g
Caution: The rims are limited to a total weight (rider and luggage) of 95 kg.
Note: As the hub of Acros are, the supply of spare parts is guaranteed for.
When you use the wheel set with a Cannondale Lefty 2.0 or
Cannondale Lefty fork Supermax, is an optional adapter for the front
Disc brake required!