SRAM PG990 9 Speed Cassette
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SRAM PG990 9sp Cassette
Get the same reliable, lightweight performance BlackBox racers enjoy. Tested on the pro circuit. Proven on the podium. SRAM PowerGlide II 9-speed cassettes meet the demands of MTBers everywhere from elite racers to weekend trail riders. Our cassettes performance is optimized through tooth profile and shift ramp design for quick and positive index shifting. SRAM PG990 Cassette 9sp Features: Size - 11-32T or 11-34T Weight - 320g - 11-34t Recommended Chain - PC-991, PC-971 Lock Ring - Anodized Alloy Spider Type - Alloy Finish - Blast Chrome Plated Spider divides the load evenly over the cassette providing longer lasting teeth Colour - Redwin Red, Nugget Gold, Pinkslip Pink. Tango Orange & Cash Green Weight: 272g.
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SRAM began life in Chicago in 1987, named after it's founders Scott, Ray And Sam, and is known primarily as a manufacturer of drivetrain and braking components. It's first revolutionary product was the twist action GripShift, which became available in 1988, with the MTB version released in 1991. In 1995, they launched their first ESP rear derailleur, which featured a 1 to 1 cable actuation ratio. The X.O drivetrain products were released in 2001, marking the introduction of the trigger shifter, and a year later, MTB Suspension pioneers RockShox was acquired. A year later Avid - a MTB Disc Brake company - was also acquired, giving SRAM more market share of the MTB industry. By 2006, a focus was shifted to producing road components in addition to their MTB stable, with the launch of Force and Rival groupsets. The following year, Doubletap was introduced, enabling users to switch gear in either direct using a single shifter. This steady growth was sustained, and over the years SRAM acquired several more cycling household brands, such as Truvativ (Chainsets and components), Quarq (power meters), Sachs (drivetrain components) and Zipp (carbon fibre goodies!).