- Three-piece design
- 29mm crank spindle diameter
- Aluminum pre-loader
- Available in three lengths: 155mm, 160mm, 165mm
- Machined from 7075 T6 aluminum
- Anodized matte black or chrome finish
- SRAM 8 bolt direct mount compatible only
- Chainring Not included
- Compatible with Title CR1 spindle
- Compatible with SRAM DUB 29mm bottom brackets only.
CHAIN COMPATIBILITY BY CHAINRING:
SRAM T-Type = Compatible with SRAM T-Type 12-speed drivetrains only
Shimano HG 12 = Compatible with Shimano HG12 12-speed chains such as:
- XTR CN-M9100/M9200
- XT CN-M8100/M8200
- SLX CN-M7100/M7200
Regular = Compatible with most 9-12 speed drivetrains including the following:
- All 9, 10, 11, & 12-speed SRAM drivetrains
- All 9, 10, & 11-speed Shimano drivetrains
- All 9, 10, & 11-speed KMC chains
- Single speed setups
Axle Selection & Frame Compatibility:
Select your axle width based on your frame's rear hub spacing, drivetrain standard, and required stay clearance. All widths are engineered to the same high-strength standard for everything from DJ to DH.
130mm
Chainline: 52mm
Q-Factor: 168.5mm
Arm Clearance: 70.25mm
Frame Fitment: Dirt Jump, XC, and Trail frames with 135mm, 142mm, or 148mm Boost spacing.
Standards: Matches SRAM Eagle Boost (52mm) and Shimano M9100 / M8100 / M7100.
Technical Note: Optimized for riders seeking the narrowest stance (Q-factor) on bikes with standard chainstay profiles.
136mm
Chainline: 55mm
Q-Factor: 174.5mm
Arm Clearance: 73.25mm
Frame Fitment: Modern 29er Trail and Enduro frames with high tire clearance and wide stays.
Standards: Matches SRAM Transmission (T-Type), SRAM DUB Wide, and Shimano M9120 / M8120 / M7120.
Technical Note: Required for SRAM T-Type systems. Provides +3mm lateral arm clearance per side to clear flared or oversized chainstays.
145mm
Chainline: 56.5mm
Q-Factor: 183.5mm
Arm Clearance: 77.75mm
Frame Fitment: Downhill (DH) and Super Boost+ frames.
Standards: Matches SRAM DUB DH, SRAM SB+(Super Boost), and Shimano M9130 / M8130.
Technical Note: Designed for 157mm rear spacing. Requires a 6mm offset chainring to maintain the 56.5mm chainline. Maximum clearance for reinforced gravity frames.
Weights
130mm spindle = 104g
136mm spindle = 107g
145mm spindle = 113g
165mm CR1 cranks with 136mm spindle = 680g
32T 8-bolt chainring SRAM TT 8 bolt = 72g