The Shimano HG51 Cassette 8-Speed is a good performance 8-speed cassette. Hyperglide sprockets have a computer designed tooth configuration with contoured shift gates resulting in a crisp smooth shift even under load. The sprockets are cut away and drilled to further reduce weight without reducing rigidity. A chrome-plated finish offers hard wearing resistance to corrosion. Also comes with a chrome-plated steel cassette lockring. Available in two ratio options and designed for Narrow 8-speed HG chains.

Specifications

• High quality 8-speed cassette
• 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 a more efficient use of energy through finer cadence control
• Sprockets are cut away to further reduce weight without reducing rigidity
• Nickel-plated finish offers hard wearing resistance to corrosion
• Corrosion-resistant steel cassette lockring
• For Narrow 8-speed HG chains

• Use: MTB / Trekking
• Model: CS-HG51-8
• Type: HG
• Gear: 8-speed
• Compatible chain: HG/IG 8-speed

• 11-28 (11-13-15-17-19-21-24-28 T)
• 11-30 (11-13-15-17-20-23-26-30T)
• 11-32 (11-13-15-18-21-24-28-32T)

• Spockets: Steel
• Lock ring: Steel

• Silver (Chrome plated)

HG
The distinctively designed HYPERGLIDE sprockets incorporate specially positioned shift ramps and tooth profiles for improved chain control during shifting. Fast and responsive indexed shifting is the result. The HG cassette sprocket, which was developed for 10-speed system, underwent comprehensive optimization to achieve super-highly efficient shifting.