BMXGuru 39t Bolt Drive BMX Aluminum Sprocket / Chainwheel - Blue - USA Made 35t The 9/16" spindle is made

The 9/16" spindle is made of chromoly

Axle-to-Crown: 401mm

It is drilled for a Schrader valve

A chrome and black 16t 3/32" Dicta freewheel (similar to the old Suntour freewheel in appearance) is included

BMXGuru 39t Bolt Drive BMX Aluminum Sprocket / Chainwheel - Blue - USA Made 35t The 9/16" spindle is madeThe 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: 39t Color: Blue Bore: 23. 8mm Teeth: 3 32" (will work with 3 32" and 1 8"