Installation: Requires drift and hammer to replace old bearing races

this custom gas tank is ideal for custom bikes

you may need to change carburetor jetting or use of an aftermarket fuel injection control module for peak performance

5 Gallon Capacity: A 3

aluminum gas cap (1-5/16"-12 thread) for proper ventilation and functionality

Pistons for Triumph 650 c.c. Motorcycles - +0.040 Petcock Thread_3/8 NPT Installation: Requires drift and hammerThese pistons are produced for Triumph 650 c. c. motorcycles by Emgo and include the pair of pistons, two wrist pins, and four keepers as pictured. These pistons are a stock 9: 1 compression ratio. Piston rings are sold separately. NOTE: Triumph 650 c. c. bikes have a 71 mm bore standard, +0. 020" is 71. 5 mm, +0. 040" is 72 mm, +0. 060" is 72. 5 mm, and +0. 080" is 73 mm.