Shimano Ultegra Di2 ST-R8170 / BR-R8170 po-sal2trail-225 Attached hood and elastic cuffs

Attached hood and elastic cuffs seal out the elements

now lighter

494g per pair

160g Fiberfill Insulation / 160g Fiberfill Insulation Backing

The ride is smoother

Shimano Ultegra Di2 ST-R8170 / BR-R8170 po-sal2trail-225 Attached hood and elastic cuffsThe ULTEGRA ST R8170 2x12 speed Dual Control levers with Wireless Di2 connectivity deliver a clean aesthetic and simple setup while reimagined ergonomics bring a new level of comfort and control. 2x12 speed Dual Control lever with 4. 6mm longer reach for increased security and control Refined hood for improved ergonomics and aerodynamics with improved button access SERVO WAVE technology enhances brake performance thanks to a faster initial bite point