Shimano Dura-Ace SW-R9150 Di2 Climbing Switch Shifter Groupe Ends of the bar are

Ends of the bar are thickened from 1

2-piece cranks: ultra-torque 630 steel axle & UD carbon arms – strong and lightweight

then railing the hairpins on the way down

most riders can expect an average cassette life of:

Shimano Dura-Ace SW-R9150 Di2 Climbing Switch Shifter Groupe Ends of the bar areSHIMANO's low profile SW R9150 climbing switches can be mounted anywhere on the handlebar for quick access to shifting in any riding position. Each button's function can be programmed individually through the E TUBE app or program for total customization. FEATURES Customizable function to fit in rider's riding style Quicker shifting during handle grip Equip the switch on any position of handle bar for flexible sifting operation