Road Bike Hub R3 Lightweight High - end Road Hubs Rachet Systoem Ultralight Road Bicycle Hub 6 bolt Cycle Hub Disc Rim V-brake HG MS XDR

The R3 hub embodies our ultimate pursuit of product excellence. Meticulous attention is paid to every aspect, be it structural design, weight, manufacturing process, or material selection. While it may not be the lightest hub, its performance and stability are truly remarkable among super - light hubs.

Typically, to reduce the weight of a hub, the common approach is to downsize the axle, bearings, and shell, which is a "subtraction" method. However, our Series R3 hub takes a different route. By optimizing the structural design, using higher - strength materials, and implementing more intricate and precise manufacturing techniques, combined with 17mm front and rear axles, large - sized 6903 + 6803 bearings, and a stable and reliable large - sized ratchet mechanism, we achieve "weight reduction through addition", thus enhancing both the performance and stability of the hub.

1. All aluminum components, including the shell, axle, freehub body, and side covers, are crafted from imported 7075 T651 high - strength aluminum alloy. The shell, freehub body, and ratchet are precisely machined by a five - axis machining center, ensuring the accuracy of spoke angles and the fit of components. (Many European and American brands' straight - pull hubs still rely on four - axis machining, resulting in misaligned spoke hole angles with the spoke angles.)

2. It features a 60t ratchet engagement structure. Distinct from other ratchet designs on the market, our structure is simpler, with a lower probability of failure, faster response, and a more distinctive sound.

3. A pair of hubs with an XDR freehub body weighs 197g, and a pair with an SH freehub body weighs 200g.

4.  It comes standard with Taiwan - produced TPI ceramic bearings, with the main bearing being 6903 and the other five being 6803, along with 17mm front and rear axles.

5.  Equipped with bearing pre - load adjustment, it minimizes the locking and compressive forces exerted on the bearings by the fork and frame, extending the bearing lifespan. The bearings can operate at optimal smoothness, and once adjusted correctly initially, no further adjustment is required when disassembling and reassembling the hub.

6.   The front and rear push - in side covers enable tool - free disassembly and maintenance.

7.  The one - piece shell offers greater stability compared to some segmented - connected hubs.

8.  With a WR value of 17.5mm, the main bearing is positioned further from the center. It also has a PCD of 55mm and a 2:1 lacing pattern. Most other brands either don't highlight these figures or you may not even be aware of their significance. Nevertheless, these are the key data underpinning its excellent performance.

9.  The cost of repair parts is low. Just consider how much it costs to replace a freehub body of other brands.

10. There is a wider range of color options available. Besides its distinctive sound, the hub also stands out with its eye - catching appearance.