Black Ops Micro Drive

Details – CNC machined 6061-T6 alloy- Fits 1-piece and 3-piece BMX cranks – 23.8mm hole for 1-piece cranks with shims for 19/22mm 3-piece cranks included- Hard anodized coating- Unique, 1/8″ quiet drive technology- Mount Compatibility: 1-piece/3-piece- Chain Compatibility: 1/2″ x 1/8″