Sram Eagle PG-1210 Cassette - B1 - 12-speed - Black - 11-50 teeth

The SRAM Eagle PG-1210 12-speed cassette (11-50 teeth) is robust, proven, and durable. It was specifically designed to handle all types of terrain while keeping maintenance costs down. Compatible only with standard splined freehub bodies (HG 8-, 9-, and 10-speed), it provides an affordable way to access the SRAM Eagle 1x12-speed ecosystem. Particularly suited to the demands of E-MTBs and aggressive mountain biking, its most frequently used sprockets are replaceable (11, 13, and 15 teeth) to maximize the overall lifespan of your drivetrain.

SRAM Eagle PG-1210 cassette highlights

• Standard HG freehub compatibility: Fits traditional splined freehub bodies (8-, 9-, and 10-speed), making it easy to upgrade most wheels on the market to 12-speed.
• Durability designed for E-MTBs: The 11-, 13-, and 15-tooth sprockets (subject to the highest loads at high speeds on an e-bike) can be replaced individually to extend the cassette's lifespan.
• Wide 11-50T gear range: Progressive gearing provides a wide range for climbing steep hills and maintaining speed on rolling terrain.
• PowerGlide (PG) technology: Optimized tooth profiles provide smooth, precise, and reliable shifting under load.
• Durable black finish: Sleek black surface treatment offers increased resistance to corrosion and mechanical wear.

Technical specifications

• Brand: SRAM.
• Model: PG-1210 Eagle (model ID: CS-PG-1210-B1).
• Use: Cross-Country, Trail, All-Mountain, Enduro, and E-MTB.
• Number of speeds: 12-speed.
• Tooth counts: 11-50 teeth (11-13-15-17-19-22-25-28-32-36-42-50).
• Freehub interface: Standard splined (8-, 9-, and 10-speed / Shimano HG standard).
• Drivetrain compatibility: SRAM Eagle 1x12-speed (Eagle chains recommended).
• Technology: PowerGlide (PG) / Eagle.
• Finish: Black.

Construction and materials

• Sprockets: High-strength cut and stamped steel
• Spider / spacer ring: Composite material and steel
• Lockring: Threaded steel, compatible with standard cassette lockring tools

Installation and maintenance recommendations

• Installation: Clean and lightly grease the freehub splines before installing the sprockets in the correct spacer order. Tighten the lockring to the recommended torque of 40 Nm.
• Chain compatibility: Be sure to use a SRAM Eagle 12-speed-approved chain to ensure smooth shifting without skipping.
• E-MTB maintenance: Regularly check wear on the smaller sprockets (11, 13, and 15 teeth) using a chain wear indicator. Replace only worn sprockets to preserve the rest of the drivetrain.