SHIMANO DURA ACE Di2 SW-RS801-S SATELLITE SHIFTER DROPS Cassette & Freewheel Tools this intuitive control centre puts

this intuitive control centre puts battery charge status and assist level information at your fingertips

12mm Thru-Axle

Solid construction made of chrome-plated and powder-coated heavy tool steel

Gears: 40 teeth

SHIMANO DURA ACE Di2 SW-RS801-S SATELLITE SHIFTER DROPS Cassette & Freewheel Tools this intuitive control centre putsBig performance in a tiny package, the Di2 SW RS801 S for on road bar brings lightning fast shifting to the tops of any Shimano 12 speed road bike. Mount these satellite shifters on your drop bar extensions for seamless gear changes without moving your hands from the hoods. Engineered with Shimano's electronic precision, they deliver the same crisp, instantaneous response as your main shifters. Perfect for long climbs, technical descents, or