Shimano Ultegra BR R8170 brake caliper

The new Ultegra BR-R8170 brake caliper offers improved modulation, a quieter braking system and an extremely simple bleeding procedure. Thanks to its improved modulation and faster-acting initial braking force, the Ultegra R8170 disc brake caliper offers road cyclists a completely new sense of control

The new Di2 platform for 12-speed components requires no cable connection to the rear derailleur or front derailleur. The Di2 Dual Control shift levers ST R8170 have the necessary wireless module integrated. Power is supplied by CR1632 batteries, which have a service life of up to 2 years. The Di2 12-speed rear derailleur, with its additional wireless unit, acts as a receiver and distributor of shift signals and is connected to the battery and front derailleur for power supply and shift command transmission. Additional wireless components, including those from third-party manufacturers, can also be paired with the rear derailleur.

Shimano Ultegra Disc Brake Caliper BR-R8170:

The BR-RS8170 road bike disc brake calipers for the 12-speed Ultegra components. These calipers are compatible with all Shimano disc brake levers. Recommended brake discs: RT-MT800. Thanks to the 10 per cent greater spacing between the brake pads, the brakes can be adjusted more effectively and noise is minimised. Despite the flatter design, the system produces less braking noise than ever before and is easier to maintain. The bleed system has been redesigned and made significantly simpler.

Flat Mount Standard:

The new Flat Mount caliper standard for road bike brakes reduces weight and offers a significantly sleeker look. With the Flat Mount standard, the rear brake caliper sits directly on the chainstay; no adapter is required for caliper mounting. The bolts pass through the chainstay from below directly into the brake caliper. A flat adapter is still required on the fork. The adapter is screwed onto the rear of the fork leg, with the brake sitting directly on the adapter.

Shimano BRR8170 Flat Mount Caliper Technical Specifications:

• Aluminium brake caliper, Flat Mount mounting
• 2-piston system
• Rensin L02A brake pad
• Recommended brake lever: STR8170
• Weight: approx. 136 g
• Flat Mount standard
• Recommended brake hose: SM-BH-90-JK-SSR
• Recommended brake discs: Shimano IceTec RT-MT800

Herstellerinformation: SHIMANO INC., 3-77 Oimatsu-cho, Sakai-ku, Sakai-shi, Osaka 590-8577, Japan, www.shimano.com | EU contact: Shimano Europe BV, High Tech Campus 92, 5656 AG Eindhoven, The Netherlands, www.shimano.com