Triumph TR2 TR3 TR3b & TR4 - Performance Roller Rocker Set flat hub Meant for the rear

Meant for the rear

Alloy Crossflow head with valves guides and seats installed

Lacing Outer - does not require a rim band because spoke mount on the outer portion of rim Back Spacing 83mm  (+/- 3) Style Tubeless

PROMAX installs in less than 15 minutes

Your stock B230 fuel pump is designed to push roughly 43 psi for fuel injection

Triumph TR2 TR3 TR3b & TR4 - Performance Roller Rocker Set flat hub Meant for the rearSet of 8 Rockers that slide right on to your existing stock rocker shaft Our Roller Rockers reduce friction and wear = increased horsepower. Less side loading on the valve. Greater Valve Life. Slightly more aggressive that the stock ratio (1. 5: 1 vs. 1. 45: 1), but still very streetable. Reduces valve chatter. Ratios are more accurate from rocker to rocker (vs stock rocker arms), making the lift more even across all of the cylinders. Can be used on