Updates the fastest proven aero derailleur cage to include patent pending ADR bearing protection and quiet performing ALPHA disc with composite tooth profile pulleys
Pinstripe graphic has been added for a splash of visual motion
The OSPW Aero ALPHA cages have been updated to accommodate the ADR equipped ALPHA disc pulleys
Reduces aerodynamic drag on the rear derailleur by up to 60%
Reduces friction by 35-40% over stock pulley configuration
Structural aerodynamic cage design
Pulleys, cages, and bearings all produced and assembled by hand in Denmark
ALPHA Disc pulleys with composite teeth for quiet performance and ADR bearing protection
It is not possible to add these pulleys to a previous gereration OSPW Aero cage
| model |
OSPW Aero ALPHA |
| compatibility |
Shimano 9250/8150 |
| upper/lower |
13/19t |
| color |
black |
