Box Three 30 TPI 20 x 1.75" Wire Bead Tire - Tan handlebars Made of 7075-T6 aluminum

Made of 7075-T6 aluminum

and titanium hardware

The Box Four Rear Derailleur is the base of Prime 9 Technology that offers an affordable clutch based 1 by 8-speed derailleur that is simple and light

we have moved material from 3 low-stress areas to zones of high load

Box Three 30 TPI 20 x 1.75" Wire Bead Tire - Tan handlebars Made of 7075-T6 aluminumBox Three 30 TPI Wire Bead Tires were engineered with a minimalist approach to hit lofty goals for weight, traction, rolling resistance, and rebound. At its heart is a super supple 30TPI casing where we forced in as much rubber displacing nylon as possible. Skin walls are employed to reduce drag and further reduce weight. We flanked the high density casing with a tightly packed hoop of high tensile steel wire bead. Finally, we draped this all with BMX