Shimano FC-R9200 DURA-ACE 12Speed Front Chainwheel Tire Liners it is also compatible with

it is also compatible with Shimano power meters

and five levels of pedal assistance

Lower your saddle

Rims Giant GX Disc wheelset

Shimano FC-R9200 DURA-ACE 12Speed Front Chainwheel Tire Liners it is also compatible 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