E-Bike MTB Scooter Power Off Brakes Aluminum Alloy 2 Pistons Electric Bike Power Control Shifter Cut Hydraulic Disc Brake road bike wheels or there are some errors

or there are some errors

Bearing Headset Suitable for : SP8

Note: The data is manually measured

Spoke Tension Rear:100-130kg(Non-Drive Side)150-180g(Drive side)

MEROCA M4 MTB Hydraulic Disc Brake 4 Piston With Cooling Full Meatal Pad CNC Tech Mineral Oil For AM Enduro Bicycle E4 ZEE M8120

E-Bike MTB Scooter Power Off Brakes Aluminum Alloy 2 Pistons Electric Bike Power Control Shifter Cut Hydraulic Disc Brake road bike wheels or there are some errorsBrand: MEROCA Product Name: power off oil brake Material: aluminum alloy Application: disc brake electric vehicle Caliber: Standard 22mm Weight: Front Brake 338g Rear Brake 360g Screw 51g Disc 134g Specification: front brake line 800mm; Rear brake line 1500mm; Electric control line 260mm