SRAM S500 Eagle CL55 Crankset B1
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SRAM S500 Eagle CL55 Crankset B1
SRAM S500 Eagle CL55 Crankset B1 Info
The SRAM S500 Eagle CL55 Crankset B1 is a 1x mountain bike crankset built for SRAM's 12-speed Eagle drivetrains, pairing carbon crank arms with a 3-bolt aluminum X-SYNC 2 chainring for reliable chain retention on technical terrain. The direct-mount chainring design keeps the interface simple and lets you swap tooth counts without replacing the crank arms, and it's available with 30T, 32T, or 34T rings depending on your gearing needs. The DUB Wide spindle runs a 55mm chainline, tuned for modern Boost-spaced frames, and the crankset works across SRAM's full range of MTB Wide DUB bottom brackets — BSA73, PF89.5, PF92, PF30 MTB73, BB30 MTB73, and BSA MTB68SP — so it drops into most current trail and enduro frame standards without a bottom bracket swap headache.
Carbon arms keep the weight down without giving up the stiffness needed for hard efforts out of the saddle, and DUB's more consistent spindle interface improves sealing against dirt and moisture compared to older bottom bracket standards. This crankset comes in 165mm, 170mm, and 175mm lengths, so riders can dial in crank length to their fit rather than compromising. It's a solid, no-frills upgrade or OEM-spec replacement for riders running 12-speed Eagle drivetrains who want carbon-arm stiffness and DUB's simplified bottom bracket compatibility without stepping up to SRAM's top-tier crank options.
