Shimano GRX BR-RX820 Disc Brake Caliper Size:Front This enable the SPEED MULLET

This enable the SPEED MULLET to work flawlessly with downtube mounted cables

it is a must-have for any e-biker

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25" headtube frames

To achieve this

Shimano GRX BR-RX820 Disc Brake Caliper Size:Front This enable the SPEED MULLETThe Shimano GRX BR RX820 2 piston disc brake caliper brings a high level of control to gravel cycling with enhanced modulation and a quick initial braking point. Despite its smaller construction, the system is exceptionally quiet and easy to maintain Features 2 piston caliper features 10% wider pad clearance to decrease brake noise One way maintenance friendly bleeding process for quick and easy prevention of air bubbles in the hydraulic system