Shimano 105 BR-R7170 Hydraulic Disc Brake Caliper Shimano The Speedcraft SL model is

The Speedcraft SL model is designed with a shorter lens profile and more compact nose bridge to fit smaller faces

molded EVA case and comes equipped with six hardened steel bits

race-ready SPEEDPLAY ZERO with dual-side engagement offers  peak power transfer with exceptional durability

the Mezcal attains the holy grail of XC tires

Shimano 105 BR-R7170 Hydraulic Disc Brake Caliper Shimano The Speedcraft SL model isShimano 105 BR R7170 Hydraulic Disc Brake Caliper Specifications Material: brake caliper: aluminium (painted), pistons: resin Compatibility: STI lever: ST R7170, ST R9270, ST R8170 Sub brake lever: BL RX812 Brake disc rotor: SM RT70, SM RT64 Brake pads: K05S RX Resin, L05A RF Resin, L04C MF Metal Brake hose: SM BH90 J SSR, SM BH90 JK SSR Mfr Claimed Weight 123g