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Thumb Rear Billet Brake Master Cylinder

Product code: X98.57.70


Billet machined rear master cylinder created to meet particular braking needs. The billet machining, which uses sophisticated numerically controlled equipment, provides maximum lightweight values thanks to optimum machining tolerances and a higher general product quality, both intrinsically and aesthetically, all to ensure excellent performance of the entire braking system.
To mount this particular type of brake master cylinder a custom bracket is required.
Designed for the Racing world, this brake master cylinder is controlled by the rider’s left thumb and uses a 11 mm diameter piston and has a lever centre distance of 16. The lever type is STD.
This Component is designed and manufactured to be used exclusively in racing competitions and, therefore, the product shall be installed  through specific adaptors not included in the packaging of the component and by highly qualified and competent professionals working in the “racing” field. Please contact our distributor for any further clarification.

Material Billet aluminium
Ø Piston mm 11
Lever ratio 16
Lever type
Single/double disc         SINGLE  
Surface protection Hard anodized
Weight (gr) 175
Brake light micro-switch No
Handlebar fixing Ø (mm) N.A 
Note Left side only

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The origins of the legend

Mick’s secret

How to win 5 consecutive world titles in the 500cc class without using one leg and thanks to a rear master cylinder.