Std Dome Top Pistons with 10.5:1 Compression Ratio. Fits Twin Cam Twin Cam 2007-2017 with 103ci Engine & Big Bore 96ci to 103ci Conversion. - Keith Black Pistons Seat & S/bar accessories-all models * made from high nickel

* made from high nickel alloy

* 40-42mm CV or Mikuni Carburettor U’Ring # SS16-0242

* Bearing Kit # ABR-28-1111

* Proudly Made in the USA

The serrated finish increases traction that offers confidence deep in the corners

Std Dome Top Pistons with 10.5:1 Compression Ratio. Fits Twin Cam Twin Cam 2007-2017 with 103ci Engine & Big Bore 96ci to 103ci Conversion. - Keith Black Pistons Seat & S/bar accessories-all models * made from high nickelFeatures & Benefits: * Bore = 3. 875 * Stroke = 4. 375 * Forged 4032 Alloy is an 11% silicon alloy that is formed in a forging press then fully machined * Best resistance to cracking in hi comp performance applications * Require . 001 wider piston to wall clearance * Anti Friction skirt coating. * Complete kit includes: two pistons, rings, wrist pins and clips. Tech Tips: * 10. 5: 1 Compression Ratio with 85cc Head Chamber Volume. * Follow Ring End