Complete with instruction manual

FLAT BOTTOM

Note: The MoCo has redesigned the Twin Cam rear outer cam bearing from ball to a roller bearing style in 2001

00-03 XL Sportster

Riser tubes are TIG welded seamless 4130 chromoly with 3mm thick tubing and 1/2-13 threaded mounting holes which will take stock riser bolts

KB PERFORMANCE PISTON SET +.010 Fälgar (Rims) Complete with instruction manualCompatible with stock cylinders and heads, gives stock compression ratio. 8. 5: 1 CR. Piston weight 370gr. Piston pin weight 97gr. Head type: Dome 0. 656" Dome 57cc. Compression height 1. 450". Bore 3. 4375" Stroke 3. 969" (3 31 32"). Rod length 7. 440" Cyl. length 5. 330". Comes with T6 heat treated 390 Hypereutectic cast pistons with 16% silicone levels which enables running a very tight clearance for longevity and hardly any piston noise. Note: Top