HG80 Mega9 cassette featuring light weight minimal design sprocket carrier
The 3 largest sprockets are mounted on a lightweight alloy carrier to reduce weight and increase rigidity
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 and drilled to reduce weight without reducing rigidity
For Super Narrow 9-speed HG chains |
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