SRAM PG-720 DH Slim Cassette

The SRAM PG-720 DH cassette is a 7-speed cassette for riders using a 1x single-chainring drivetrain for downhill riding. The ratios are designed for downhill: each shift is more targeted, and the 11-25-tooth range covers both fast and technical sections well. It is compatible with SRAM 11-speed chains, the SRAM X01 DH groupset and the splined body.

Check your hub type when choosing. With conventional HG hubs, the cassette fits as supplied. With slim DH hubs designed for 7 speeds, you need to remove the spacer. Also check that the chain and crankset are compatible, as the system is designed for the 1x DH drivetrain.

Founded in Chicago in 1987 by Stan Day and a group of cycling enthusiasts, SRAM is still based in the US city today. It makes drivetrains and brakes for road, gravel and mountain bikes. Its story began with a single product: Grip Shift, the shifter that lets riders change gear by twisting the grip.