Shimano Ultegra ST-R8020-L Shift/Brake Lever - Left, Double, Black Brake Type_Disc heat- and altitude-adjusted VO2 max

heat- and altitude-adjusted VO2 max

Updated full length zipper for easy on/off and mid-ride ventilation

The orientation of the tube shapes to the airflow also affects its drag: the seat post and down tubes

CLEAR version is perfect for protecting new frames or for protection without visual impact

The Air Bleed Valve lets you make fine adjustments to your air pressure

Shimano Ultegra ST-R8020-L Shift/Brake Lever - Left, Double, Black Brake Type_Disc heat- and altitude-adjusted VO2 maxThe Ultegra ST R8020 series left shifter hydraulic disc brake levers bring greater rider control in all conditions. Smaller bracket size and wide reach adjustment range provides riders greater control in all conditions Smaller lever size and positioning improves ergonomics Internal shifting unit provides quick and intuitive front shifting operation SERVO WAVE ACTION offers greater braking power with improved control Double or Triple: Double Color: