TRP CR-M9050 Boost Direct Mount Chainring - 30t 12-Speed CINCH Mount 3mm Offset 7075-T6 Aluminum Sandblasted BLK/Space Gray CheckoutSpec= 550 lbs }Surly Midnight Special Frameset -

}Surly Midnight Special Frameset - 650b Steel Black 50cm

Also acts as replacement for exisitng Blackthorn Control or Shock Link

Optimized for 11-speed drivetrains though compatible with 9 10-speed chains as well as 12-speed Eagle 12-speed Campagnolo

The SRAM X5 crank arm is engineered for 2x and 3x shifting performance

}Spank 350 Vibrocore Rim - 27

TRP CR-M9050 Boost Direct Mount Chainring - 30t 12-Speed CINCH Mount 3mm Offset 7075-T6 Aluminum Sandblasted BLK/Space Gray CheckoutSpec= 550 lbs }Surly Midnight Special Frameset -TRP CR M9050 Boost Direct Mount Chainring 30t 12 Speed CINCH Mount 3mm Offset 7075 T6 Aluminum Sandblasted Black Space Gray. The CR M9050 EVO12 Boost chainring is crafted with high quality CNC machined 7075 T6 aluminum and features Wave Technology for proven chain retention in extreme conditions. CNC machined using 7075 T6 aluminum provides strength and incredible durability Torsionally rigid for exceptional power transfer Wave Technology offers