Shimano GRX ST-RX600 Shift/Brake Lever BR-RX400 Hydraulic Disc Brake Caliper - Left/Front 2x Flat Mount Caliper BLK ISO Diameter-406 / 20 BMX Gender/Age Adult Rotational Protection Yes

Gender/Age Adult Rotational Protection Yes Minimum Head Circumference 57 Color Velvet Black Size Large Visor Included Yes Multi Impact No Weight 440 Helmet Certifications Complies with the U

Boa® Fit System for easy and secure fixation

Model SRS Pro Carbon Size S/M Rails Carbon Top Microfiber Color Black LxW (mm) 247x140 Weight 180g

an extra tooth on each pawl

Shimano GRX ST-RX600 Shift/Brake Lever BR-RX400 Hydraulic Disc Brake Caliper - Left/Front 2x Flat Mount Caliper BLK ISO Diameter-406 / 20 BMX Gender/Age Adult Rotational Protection YesGRX ST RX600 Shifter Hydraulic Brake LeverST RX600 Dual Control shift brake levers provide the same light shifting operation as top tier systems Anti slip lever design Reach adjust mechanism allows lever to be adjusted to suit any hand size type of riding and individual rider preferences Brake Lever Actuation Hydraulic Double or Triple Double Rotor Included No Brake Caliper Mount Flat Mount Brake Lever Use Left Rear Der Shifter Compatibility Shimano