AX - Lightness U 25C - Ultra Road Clincher 25
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Ultra 25C - A completely new development! Thanks to a CfD-optimized rim profile our 25C Clincher rims offer an exceptional aero performance that matches those of significantly deeper rims.
The low weight, which so far has only been reserved for tubular rimsm makes them miraculous accelerators and very reactive. The high stability is responsible for not wasting a single bit of energy or and a high steering precision.
A special, patented coating on the brake track offers a secure braking perfomance in any conditions. The coating functions as isolator and keeps the occuring heat away from the inner part of the rim, effectively preventing a delamination or damage of the rim even under the most severe conditions. The rims have been tested at surface temperatures in excess of 400 degrees Celsius - without taking damage.
Each rim us individually tested at a tire pressure of 13 bar prior to release which is a testament to their extreme stability.
All of this make the Ultra 25C to the absolute king of mountain!
Weight (+/- 5 %) 975 g/set
Rims ax Ultra 25C
Rim material Full Carbon
Tire type Clincher, Tubless
Brake type Rim brake
Rim depth 25 mm
Rim width 20.5 mm
Rim internal width 14 mm
Hubs Extralite CyberFront SP / CyberRear SP
Freehub body Shimano/Sram, Campagnolo
Spokes DT Swiss Aerolite, black
Spoke tension front: 100 kgf, rear: 120 kgf
Spoke count (f/r) 20 / 24
Decal colour white
Field of use Road
Max. recommended tire pressure 20mm 9.5 bar, 22mm 8.0 bar, 23mm 7.5 bar, 25mm 7.25 bar
Rider weight limit 100 kg
Available technical data: