> Click image to enlarge <wheel size: 700c
category: aerodynamic
weight: 1740g set [715g/1025g]
spoke count: aero 16F/20R
rim: clincher
hubs: Campagnolo and Shimano compatible
hubset: Echelon wheel systems orbit around a proprietary hubset design. Patented Differential Flange Diameter™ on the rear hub lends a mechanical advantage effectively doubling the number of functional pulling spokes; increasing wheel durability. Black, CNC machined, hub shells with oversized axles provide high strength, stiffness and light weight. Optimized flange contours provide full spoke elbow support, increasing spoke life. Precision cartridge bearings are easily serviceable.
freehub mechanism: The forged aluminum freehub body has 3 independently driven hardened steel pawls. The system is strong, simple and dependable.
rims: The Echelon rim looks very similar to the Vigor rim, but is slightly shorter at 31mm tall. The rim section has a more uniform wall thickness for added impact strength and toughness. The brake sidewalls are CNC-machined for smooth, consistent braking performance.
spoke & nipple: Black, custom aero profile, 14 gauge spokes and internal alloy nipples with nylon inserts contribute to clean aerodynamic performance and superior, long-term durability. Patented, Jacketed Nipple Design™ and Dish Reducing design™ reduce spoke bending loads and rear wheel dish to increase spoke fatigue life.
extras: Rolf Prima Echelon wheel systems include custom reinforced rim tape and quick release skewers.
All Rolf Prima wheel systems are protected by one or more of the following US Patents: 5,931,544; 5,938,293; 6,024,414; 5,947,565; 6,244,667 and 6,497,042. Rolf Prima wheel systems are also protected by several foreign patents including Canadian Patent 2,136,053 with others pending.