All our wheels are hand trued and fitted with a FREE RIM TAPE prior to dispatch via tracked courier. Baldy's, the perfect replacement wheel. Our 7 speed 20" rear mountain bike wheel is constructed with Mach1 silver alloy rim, silky smooth sealed bearing hub with nutted axle and silver steel spokes. With its durable construction, this wheel can handle the toughest terrain and provide a smooth ride every time. Quality components ensures maximum stability and strength. Whether you're commuting to work or hitting the trails, our wheels are built to handle it all. Wheel Specification: Rim: MACH1 110 20" single wall silver alloy Rim Width: 26.