Triumph "Cast Iron Head" Pre-Unit Twins Valve Spring Set (1) - 99-3700 Tiger Use the drop down menu

Use the drop down menu to select which type of air filter element you desire - filters are sold individually

The Veglia speedo drive mounts on the left side next to your sprocket while the Smiths mounts on the opposite side

Well this is Exactly you need

Norton Commando 750 & 850 models including Atlas

It does not contour the valve very well which "digs" into the valve stem and over time causing your valve stem to wear prematurely

Triumph "Cast Iron Head" Pre-Unit Twins Valve Spring Set (1) - 99-3700 Tiger Use the drop down menuWe are now stocking a new Hepolite valve spring kit for early Triumph pre unit twins that feature a "cast iron head". This is a new quality spring kit ready to be installed Fits Triumph 350 & 500 Pre Unit Twins from 1952 1956. Also fits Triumph 650 Pre Unit Twins (Thunderbird, 6T, Bonneville, T120, Tiger, TR6 & T110) from 1952 1956. Please refer to your parts catalog for proper fitment. Please note that our valve springs are sold in a set as pictured