Click to expand Tap to zoom 06B20H-SB Metric Sprocket 20 Tooth 10MM Stock Bore For 06B British Standard Chains Sale $25.63 SKU 06B20H-SB 1 2 3 4 5 6 7 8 9 10+ Quantity Quantity Add to cart Metric Sprocket for British Standard Chain 06B20H Stock Bore - No Keyway / Set Screw PD: 60.89mm Bore: 10mm Hub Dia.: 49mm Hub LTB: 28mm