SRAM SX Eagle Boost Crankset – 175mm x 32T – DUB – Direct Mount – 1x11/12 Speed
The SRAM SX Eagle Boost crankset brings true Eagle 1x drivetrain performance to entry-level and replacement builds. This Boost-compatible version uses a 175mm aluminum crank arm set paired with a 32-tooth direct mount X-SYNC 2 steel chainring and SRAM’s DUB spindle system.
Designed for modern Boost-spaced mountain bikes, this crankset is compatible with SRAM 11- and 12-speed Eagle drivetrains and can also be used with NX 1x11 systems when paired with a SRAM 11-speed chain.
Key Functional Details
- 175mm forged aluminum crank arms
- 32T direct mount SRAM X-SYNC 2 steel chainring included
- SRAM DUB spindle interface
- Boost compatible (148mm rear hub spacing)
- 1x11 and 1x12 speed compatible
- Uses the same steel chainring platform as NX Eagle
- Bottom bracket sold separately
Compatibility & Technical Notes
- Rear Hub Compatibility: 148mm Boost
- Chainline: 52mm (Boost)
- Spindle Interface: SRAM DUB
- Chainring Mount: SRAM Direct Mount
- Speeds: 1x11 or 1x12
- Bike Type: Mountain bike (Boost frames only)
- Not compatible with: 142mm non-Boost frames without proper chainline correction
Service / Ownership Context
This crankset requires a compatible SRAM DUB bottom bracket matched to your frame’s bottom bracket standard (BSA, PF92, etc.). Installation requires proper crank preload adjustment and torque to SRAM specification. If replacing a non-Boost crankset, verify rear hub spacing before ordering.
Fit & Use Signals
- Good Fit: Boost 148mm mountain bikes running SRAM Eagle 1x systems
- Good Fit: Replacement for damaged SX or NX Boost cranksets
- Not A Fit: Non-Boost (142mm) rear hub frames
- Not A Fit: Road, gravel, BMX, or multi-chainring setups