BMXGuru 43t Bolt Drive BMX Aluminum Sprocket / Chainwheel - Blue - USA Made 36h It features a directional tread

It features a directional tread pattern with a "V" shaped tread for excellent traction

Single bolt design for easier adjustment

This will only fit 28 tpi cranks like old Schwinn

Length: approx 13

BMXGuru 43t Bolt Drive BMX Aluminum Sprocket / Chainwheel - Blue - USA Made 36h It features a directional treadThe BMXGuru sprocket is USA made from lightweight, thick, and strong 6061 aluminum alloy. It has 3 32" teeth and a 23. 8mm (24mm) bore. This will fit most BMX cranks including One Piece cranks as well as 22mm and 19mm 3 Piece cranks with proper adapter (sold separately). This sprocket has an anodized finish and laser etched logos. BMXGuru sprockets are made in the USA! Size: 43t Color: Blue Bore: 23. 8mm Teeth: 3 32" (will work with 3 32" and 1 8"