Shimano Ultegra BR-RS811-R Road Caliper Brake - Rear Under Bottom Bracket Direct Mount BLK MFPN=MIG50011 } An oversized hub shell

} An oversized hub shell increases torsional and lateral stiffness

Dual Compound Rubber means a fast rolling tire with great cornering traction

Type Standard Size 700x50 ISO 622 Bead Wire Belted Tread/Sidewall Color Bk/Bsk/Ref PSI 70 Weight (Grams) 890 TPI 50 Durometer Features REF Reflective Sidewall Yes

Misc Dinosaur Primary Color Blue Size U Helmet sizing in cm 45 - 50cm e-Bike approved No Integrated Light No Visor Yes Certification CPSC EN1078 Color Dinosaur

Updated base valve piston

Shimano Ultegra BR-RS811-R Road Caliper Brake - Rear Under Bottom Bracket Direct Mount BLK MFPN=MIG50011 } An oversized hub shellThe Shimano BR RS811 R under bottom bracket mount road brake caliper provides an exceptional balance of rigidity weight and stopping power. Features a sleek and integrated low profile design that is compatible with 20. 8 28mm wide rims and up to 28C sized tires. Exceptional balance of rigidity weight and stopping power Sleek and integrated low profile caliper design Compatible with 20. 8 28mm wide rims and up to 28C sized tires Includes R55C4