The BSD Guard Sprocket is CNC machined from a strong 7075 aluminum to ensure your chain stays in one piece. BSD came with a classic design that gives you everything you need and nothing you don't.
- Offset teeth design for better chain alignment
- Bored to 24mm but works with 19 & 22mm spindles with supplied adapters
- Weight: 5.8oz (25T) | 6.52oz (28T)