CNC - made in Germany, high-strength 7075 aluminium
Stainless steel Edelstahl angular contact ball bearings, double sealed
R2 seal (rubber lip seal), R3 seal (metal sheet supported rubber seal)
19mm aluminium Axle - even lighter and more rigid
Ratchet-System - extended service life and better transmission  
Straightpull Flansch - max. wheel stiffness
The Clamp System - Axial play of the axle can be adjusted
 
Technical specifications:
Axle: 19 mm
Standard: 15mm
Width: 110mm
Brake system: DISC - IS (6-Loch)
Holes: 32
Weight: 145g