Triumph T140 TR7 750 Lockheed 1/2″ Performance Stainless Master Cylinder Upgrade (1) 13mm PN# 99-7027 /13 S and 99-9918


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Tired of the wooden feeling brakes on your Triumph T140 Bonneville or TR7 Tiger Twin, or your T150 / T160 Trident Triple? This master cylinder barrel is the answer to your prayers! We had these made for us in stainless steel to alleviate the rust & pitting issues that plagued OEM master cylinders and to visually replicate the O.E.M. item. Bored 1mm smaller (1/2″ / 13mm bore) to add stronger braking and feel. While these are recommended for Triumph front brakes, they fit all Triumph front and rear applications 1973 onward with Lockheed brakes, and also Norton Commando rear brakes. Sold individually.

View or download the Lockheed Hydraulic Brake Equipment Service Instructions 

For complete master cylinder assemblies and standard 14mm bore master cylinder barrels, see recommended links.


LF Harris motorcycle spares are produced to the highest quality standards possible utilizing original Triumph tooling, dies, factory blueprints & materials combined with modern manufacturing equipment, tolerances & techniques.


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