New 7.4:1 low compression ratio piston and piston ring sets for Triumph 750 twins from LF Harris. These pistons were fitted to late Bonneville & late tiger twins 1979-83. Available in standard, +.020″, +.040 & +.060 (over)sizes.
Please use drop down menu to select size.
We also sell 8:1 compression Triumph 750 pistons click here.
For gasket kits click here.

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.
The product images shown are for illustrative purposes only and may not be an exact representation of the product received. Manufacturers occasionally make minor cosmetic changes to items, such as color, finish, label, or design. These changes do not impact the item’s function or compatibility. Please contact us if you have specific concerns regarding appearance.








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