Title CR1 Crank Spindle

The CR1 spindle connects the CR1 crank system across different platforms, from dirt jumpers to downhill bikes. CNC-machined from 7075-T6 aluminum and available in three widths, it lets you choose the right spindle for your frame, drivetrain standard and required stay clearance. The same crank arms can be built up for several different bikes. 

The spindle has a 29 mm diameter and is designed exclusively for SRAM DUB 29 mm bottom brackets. 

⚠️ Compatible with SRAM DUB 29 mm bottom brackets and Title CR1 crank arms only. Crank arms and chainring are sold separately. 

Which spindle do you need? 

130 mm: 

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. 

136 mm: 

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. 

145 mm: 

Chainline: 56.5mm - Requires a 6mm offset chainring 
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. 

Features: 

• CNC-machined from 7075-T6 aluminum 
• 29 mm diameter 
• Fits Title CR1 crank arms 
• Compatible with SRAM DUB 29 mm bottom brackets only 
• Three widths: 130 mm, 136 mm or 145 mm 
• Weight: 104 g (130 mm), 107 g (136 mm), 113 g (145 mm)