Top quality USA made Hastings piston ring set for unit BSA A65 650 twins from 1962-72 including Lightning, Thunderbolt, Firebird, etc.
Available in standard, +.020, +.040 & +.060 bore sizes. Please use drop down menu to select size.
Note: *** All machine work should always be performed by a qualified machine shop!
For BSA 650 pistons click here.
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