Pistons for Triumph 650 c.c. Motorcycles - +0.040 Vendor_Rich Phillips CNC machined from 6061-billet aluminum

CNC machined from 6061-billet aluminum

3/8" drive

primary gasket

simply use the stock grommets and mounting hardware from a 1986 & later Sportster

guaranteed to fit reproduction of original Harley-Davidson parts used on all 1936-57 Big Twins OHV SV

Pistons for Triumph 650 c.c. Motorcycles - +0.040 Vendor_Rich Phillips CNC machined from 6061-billet aluminumThese 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.