Neptune Helm 25t Bolt Drive BMX Aluminum Sprocket / Chainwheel - Black - USA Made 1.50 This spider is USA-made from

This spider is USA-made from aluminum

The upper cable is an extra long 505mm for bigger old school bars

it is drilled for a standard Schrader valve

or if you come down on the seat hard

1 (ISO 622mm)Bead: WirePressure Rating: 50psiColor: Blue w/ Tan Skinwall

Neptune Helm 25t Bolt Drive BMX Aluminum Sprocket / Chainwheel - Black - USA Made 1.50 This spider is USA-made fromThe Neptune Helm sprocket is USA made from 6061 aluminum. It has a 15 16'' 23. 8mm (24mm) bore, which can be used with most cranks with the use of the proper sprocket adapter (not included). This item has an anodized finish and laser etched logos. Size: 25t Color: Black For 19mm adapter click HERE!