U-area is the core area of the rim. The structure of the U-area should be designed independently. We fix the hook's shape and make it fitter with for tire. Of course the better thermal conduction and better structure for brake down.

The Hubsmith R&D team launched a new zero-time planar tooth ratchet for the ratchet body drive structure. During the 360-degree driving process, the zero-time planar tooth ratchet body has two parallel tooth surfaces (48 teeth) to achieve a zero-gap occlusal action at the same time. The complete occlusal and propulsion allows the driving performance to be more directly output. In addition, the zero-time planar tooth-type occlusal structure is more durable than traditional pawls.

The brake side is equipped with a 3K carbon weave pattern and a 360-degree circular groove drainage design, which effectively enhances braking performance during the braking process.

The Bumbee CC 349, Bumbee P. CC349 carbon wheelset features ultra-lightweight carbon fiber spokes that offer both reduced weight and increased rigidity when compared to traditional steel spokes.

The patented pawl design with 3 pawls and 9 teeth allows each tooth to fit closely and make close occlusal contact with the 48 teeth surface in the ratchet ring when turning. The design of pawl with 3 pawls and 9 teeth steps is more effort-saving when pedaling.

The Hubsmith aluminum rim is polished layer by layer by hand polishing and grinding by craftsmen, and then the color is rendered into a bright metallic color through anodic method.

High-precision smooth and wear-resistant ceramic bearing.

The WING SPOKE was designed to outperform the current crop of high-end spokes that are found on today’s finest racing wheels. The WING is more than just another lightweight, bladed spoke. Inspired by the nose cone of an airplane, it offers the highest level of aerodynamic performance of any spoke on the market today. Wheel builders will also appreciate the ease of working with the WING. Its one-piece, butted design reduces potential weak spots, while its rigidity helps prevent twisting or breakage when tensioning.

The alloy rim of Hubsmith wheel is built by high-end butt welding technology to largely enhance the stiffness of the wheels.

The ceramic bearings version of NEW Hubsmith wheel sets adopts the brand, Ceramicspeed high end ceramic bearings from Denmark. Data shows that CeramicSpeed ceramic bearings have excellent abrasion resistance and extremely smooth riding experience. (Applicable models are only for HS-Humbird CS355 (CeramicSpeed Limited Edition), HS-Humbird CS406 (CeramicSpeed Limited Edition))

360 degree full carbon fiber reinforcement ring can reduce the bump caused by the wheel spoke building.

3K Carbon-fiber Rim.

UD Carbon-fiber Rim.

Precision bearings provide riders with a smoother road cruise.

Using precise measuring equipment and specialized tool, our technicians adjust and correct lateral and radial deviation and center the rim.

Heat treatment to alloy rim makes the hardness of material more rigid.

To drill the holes with proper angles in precise calculation for mini wheels can optimize the spokes to be built in straight lines.

Mini alloy wheel sets will have been through sand-blast surface treatment to enhance the brakeage of the brake.

One way gap adjustment ring can be easily operated with one 2.5mm screwdriver in order to push the shifting bearing and reduce the gap to lengthen the lifetime of bearings.