Suitable for direct-lock rear derailleur protectors, this 160.8mm through-shaft, paired with the rear derailleur protector, protects the rear derailleur from lateral impacts and reinforces the connection between the derailleur and frame.

Lightweight Aluminum Tube

Lightweight design and precision manufacturing.
More drop options available

Narrow wide chainring for SHIMANO® 12 speed crank. With mud remove design on teeth shape.
Fix SHIMANO® crankset with special bolt.

Narrow wide chainring for SHIMANO® 12 speed crank. With mud remove design on teeth shape.
Fix SHIMANO® crankset with special bolt.

Compatible with SRAM® AXS E1 and FORCE AXS E1 road rear derailleurs.
Features a 12T upper pulley and an 18T lower pulley, effectively improving chain engagement and overall drivetrain smoothness.

Compatible with SHIMANO® RD-R9250 rear derailleur (12-speed Di2 electronic shifting), SHIMANO® DURA-ACE series.

Compatible with SHIMANO® RD-R8150 rear derailleur (12-speed Di2 electronic shifting), SHIMANO® ULTEGRA series.

Compatible with SHIMANO® RD-R7150 rear derailleur (12-speed Di2 electronic shifting) and RD-R7100 (12-speed mechanical shifting), SHIMANO® 105 series.

Compatible with SRAM® AXS E1 and FORCE AXS E1 road rear derailleurs.
Features a 12T upper pulley and an 18T lower pulley, effectively improving chain engagement and overall drivetrain smoothness.

Compatible with HAMMERHEAD Karoo bike computer.