Wheels: Shimano goes wide
Remember that you must use one of Shimano’s new wheels (or a Mavic wheel) to run the new 11-speed groups. The new wheels are, however, backwards compatible. You can run a 10-speed cassette on the newest offerings with use of a 2.85mm spacer. Thankfully, Shimano’s new wheels look fantastic.
Every rim is wider than before, in both the Blade and Accelerating Speed series. The “D2” rim profile is entirely different as well. Like most wheel manufacturers, Shimano tested its wheels in the wind tunnel and saw marked improvement with the new, wider shapes.
The Blade wheels are, as you would imagine, Shimano’s newest aero wheels. The C50 will come in both clincher and tubular versions while the C75 wheels are tubular-only. Both tubular versions will have a 24mm wide rim, with hidden nipples. The C50 clincher rim is a tad narrower with its 23mm aluminum braking surface.
The new Shimano rear wheels feature a 2:1 spoke ratio, with twice as many spokes on the driveside. Rear rims are offset and the non-driveside flanges are moved outboard by 7mm to help with wheel stiffness.
In the Accelerating Speed line, Shimano will offer the C35 and C24 in clincher and tubeless versions. Both receive an updated rim profile, which is wider and rounder in nature.
All use Shimano’s Dura-Ace hub internals and a new all-titanium freehub body.
C24 tubeless: 1,454g (rim weight: 420g), $1,500
C24 clincher: 1,364g (rim weight: 383g), $1,400
C35 tubular: 1,362g (rim weight: 362g), $3,000
C35 clincher: 1,488 (rim weight: 439g), $2,200
C50 tubular: 1,449g, $3,200
C50 clincher: 1,672g, $2,400
C75 tubular: 1,545g, $3,500