S&M Bikes 20" Speedball Tyre Black Freewheels Box One™ Chain Tensioners are

Box One™ Chain Tensioners are extruded then CNC-machined from 7075 aluminium for an optimal balance of strength and weight

• Rim Width: 36mm

Braking Options: Refined removable brake mounts and cable channel improvements that provides benefits with or without a brake setup

Extra pins and wider base make them better

Dread Lock textured surface provides improved control with less effort

S&M Bikes 20" Speedball Tyre Black Freewheels Box One™ Chain Tensioners areThe Speedball is S&M's street tyre. Available in a wire bead only in a high pressure casing with extra pinch flat protection for street riders that run lower pressure. The Speedball features a smooth unbroken centre strip for less rolling resistance, and multi edged S&M shoulder tread design that looks cool and holds the ground. The 2. 1 is light and fast and works well in the front or rear. It's big enough for today's street riding but small enough