Shimano FC-R9200 DURA-ACE 12Speed Front Chainwheel Tire Liners the ORTLIEB Seat-Pack comes with

the ORTLIEB Seat-Pack comes with Velcro straps to enable convenient and secure mounting to your seat stem

and five levels of pedal assistance

Up to 50% more clamping force than standard quick releases

HG spline (ROAD 11-speed)

it is also compatible with Shimano power meters

Shimano FC-R9200 DURA-ACE 12Speed Front Chainwheel Tire Liners the ORTLIEB Seat-Pack comes withDURA ACE FC R9200 crank, the heart of the bicycle, ensures that no portion of your pedal stroke is wasted. With hollow arms and chainrings, weight is kept to a minimum but stiffness and shifting precision is maximized. The DURA ACE FC R9200 crank performs two vital functions: transferring your pedaling effort into the drivetrain and ensuring the fastest, most precise front shifting available. With HOLLOWTECH II crank arms to ensure light weight and