$88.05
$176.09
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These 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.