Galespeed Thumb-Brake Rear Brake Master Cylinder – The GALE SPEED rear master cylinder has a 12mm piston diameter and was designed to match the general racing lever ratio . Forged 6061 and 3D machined body with a T6 heat treatment for strength and corrosion resistance. Adjustable mounting points slide to widen mounting points for universal applications. NOTE: Fluid tank not required whenbrake hoses are connected directly

Piston Diameter: 12mm
Mounting Pitch: 49mm
Includes 2 return spring (optional red is a higher strength).

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