S&S, Evo stroker piston set (OEM heads). +.010" - 84-99 Evo B.T. with 4-5/8" stroker flywheels (NU) 970224 The passenger seat that extends

The passenger seat that extends forward for increased driver back support

With basket weave style upholstery

clutch hose and secondary clutch actuator

Nightster and Roadster Sportster models

Shipped with custom mounting brackets to weld on the frame

S&S, Evo stroker piston set (OEM heads). +.010" - 84-99 Evo B.T. with 4-5/8" stroker flywheels (NU) 970224 The passenger seat that extends89". 3 1 2" stock bore x 4 5 8" stroke. Used with stock cylinders and heads in combination with 4 5 8" stroker flywheels. Converts the stock 80" (1340cc) Evo B. T. to 89" (1459cc). Approx. 9. 25: 1 CR. Kits include forged pistons, wrist pins, wrist pin clips and piston rings. Note: In any and all applications the technician must be able to judge components for their suitability in combination with the other engine components, prior to installation. It