A two-piece rim and tire assembly. The tire is held to the rim by fasteners extending through flanges integral with the tire main body and then into the rim. Further, the outer edges of the rim clinchably mount the tire main body thereto. A flexible overhanging portion extends outwardly of the tire main body minimizing dirt and mud accumulation on the tire and rim. A bearing is held within the rim by a ring.

Bicycle rims that allow tires to be more easily mounted in a tubeless configuration are disclosed. More specifically, a bicycle rim may control the two beads of the tire with separate bead channels for each bead and a center bridge extending between the two bead channels.

A tire member of a non-pneumatic tire is provided. An inner circumference of the tire member is provided with a mounting protrusion. Securing notches for securing the tire member to a rim are provided at two sides of where the mounting protrusion joins the tire member. A position fixing groove is provided at an inner circumference of the mounting protrusion. The position fixing groove has an annular structure; alternatively, the position fixing groove has an arc structure, and a plurality of the position fixing grooves having the arc structure are uniformly distributed at the inner circumference of the mounting protrusion in a circumferential direction. Two side walls of the position fixing groove are provided with several securing holes below the securing notches, respectively. The securing holes pass through the side walls of the position fixing groove, and partially coincide with securing notches at an outer side.

A two-piece rim and tire assembly. The tire is held to the rim by fasteners extending through flanges integral with the tire main body and then into the rim. Further, the outer edges of the rim clinchably mount the tire main body thereto. A flexible overhanging portion extends outwardly of the tire main body minimizing dirt and mud accumulation on the tire and rim. A bearing is held within the rim by a ring.

Bicycle rims that allow tires to be more easily mounted in a tubeless configuration are disclosed. More specifically, a bicycle rim may control the two beads of the tire with separate bead channels for each bead and a center bridge extending between the two bead channels.

An airless tire includes an inner wheel including flanges having fin fastening holes, an outer wheel receiving the inner wheel and including a tread part molded into the outer surface of a drum with at least one of through holes and irregularities to be united with the drum, with the inner periphery of the tread part embedded in the through holes or irregularities, a middle wheel including elastomers, a peripheral part having fin fastening holes and formed on the inner periphery of the elastomers, and ribs in the middle of the elastomers, a fixing device attaching the inside of the outer wheel to the outside of the middle wheel and then detachably uniting the middle wheel and the outer wheel, and coupling fins that allow the inner wheel and the middle wheel to be detachably held together by being inserted through the fin fastening holes and the fin fastening holes.

An anti-roll off assembly. The assembly comprises a band, a plurality of compression-resistant well filler assemblies and a coupler assembly. The band is configured to extend substantially around a circumference of a well portion of a wheel. The compression-resistant well filler assemblies are coupled to the band and are configured to be positioned against the well portion to block off respective volumes along circumferential portions of the well portion. The coupler assembly is configured to increase a tension force of the band and comprises a first trunnion, a second trunnion and a threaded member. The first trunnion is in contact with the band and has a first threaded opening. The second trunnion is in contact with the band and has a second threaded opening. The threaded member comprises a first end threadedly engaged with the first threaded opening and a second end threadedly engaged with the second threaded opening.

A pulley assembly having a body, a shaft mount and a plurality of bolts is disclosed. The body is aligned to the shaft mount by providing a tight tolerance between a shoulder portion of the bolt and a neck portion of a counter sunk hole formed in the body. Additionally, an outer surface of the body may have a pattern of friction lines or patches formed by fusing particulate matter to the outer surface with heat generated by a laser beam.

A two-piece rim and tire assembly. The tire is held to the rim by fasteners extending through flanges integral with the tire main body and then into the rim. Further, the outer edges of the rim clinchably mount the tire main body thereto. A flexible overhanging portion extends outwardly of the tire main body minimizing dirt and mud accumulation on the tire and rim. A bearing is held within the rim by a ring.

A wheel assembly comprising a wheel disk and a tread member disposed around the wheel disk. The wheel disk can have a substantially conical shape when in an unloaded state, but be flexible such that it can deform under load to optimize and/or maximize contact area between the tread member and a driving surface.