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The transmission ratio range of this cassette is larger than with existing 3-speed chainrings, avoids unnecessary gear changes and ensures absolutely smooth gear changes. The larger ratio ensures high efficiency and facilitates ascents and descents.
Powerglide chainrings The blades are punched, embossed and CNC machined from 7075-T6 aluminium plates. This results in cassettes with top shifting precision. By embossing SRAM can produce tooth profiles that are not possible with CNC processes. Strain-hardening ensures great durability. Stainless steel climbing aids also ensure a long service life. Precision finishing and laser graphics put the finishing touches to the chainrings.