98ci Big Bore Kit - Black. Fits Twin Cam 1999-2006 - S&S Hand Controls & Components Metric * Requires 125x4SL Caliper &

* Requires 125x4SL Caliper & 11

* Friction rings designed to provide better stopping power

* Includes Exhaust port gaskets

* S&S Crankshaft requires 2 Keys # JM-2480K

98ci Big Bore Kit - Black. Fits Twin Cam 1999-2006 - S&S Hand Controls & Components Metric * Requires 125x4SL Caliper &Features & Benefits: * Includes 10cc Dome Forged Pistons. * Includes 0. 045 Head Gaskets. * 3. 937 Bore * 4 Stroke * 10. 3: 1 Compression Ratio with Stock 85cc Heads. * 9. 9: 1 Compression Ratio with S&S 89cc Heads # SS90 1106. Suggested Additional Purchase: Dual spray piston cooling jet kit # SS310 1251 Tech Tips: * Will Not Fit with S&S 79cc Heads. Proudly Made in the USA by S&S Cycle !