Shimano GRX BR-RX410 Hydraulic Disc Brake Caliper - Front Flat-Mount W/Bracket 140/160mm Rotor Assembled 160mm BLK Model=CZR i30 Rear Wheel 25/64" hexagonal chain with textile keyword search-EB1390001M Crown:58HT Professional quality chain uses SA5139

Shimano GRX BR RX410 Hydraulic Disc Brake Caliper Front Flat Mount W Bracket 140 160mm Rotor Assembled 160mm BLK Model=CZR i30 Rear Wheel 25 64" hexagonal chain with textile keyword search EB1390001M Crown:58HT Professional quality chain uses SA5139 25 64" hexagonal chain with textile sleeve to protect against damage to the paintwork Steerer Type Tapered Color Gloss Black Lockout Switch Crown Brake Type Post Mount 180 Crown Race 40 Negative Spring Air Travel (mm) 120 Wheel Size 29" Offset 44 External Adjustments Lockout Threshold External Adjustments Rebound Damping Defined Color Black Positive Spring Air Axle to Crown Length 531 Front Axle 15mm Thru x 110mm Stanchion Diameter 35 Maximum Tire Width 66 S