• Hyperglide sprockets have a computer-designed tooth configuration with contoured shift gates, resulting in a crisp smooth shift even under load
• Close ratio gearing allows more efficient use of energy through finer cadence control
• Sprockets are cut away to reduce weight without reducing rigidity
• Nickel-plated finish offers hard wearing resistance to corrosion
• Corrosion-resistant steel cassette lockring
• Colour: Silver
• Cogs: 11-13-15-18-21-24-28T
• Durable 7-speed ATB cassette
• Compatible with both IG and HG chains
• Can be use for 7speed Brompton conversion
• Weight: 225g