<p>Aprilia RS 125 to 140cc Italkit cylinder Rotax 122 2 rings</p>
<p>140cc 57mm Rotax 122 Cylinder to fit the Rotax 122 type engine.</p>
<p><strong>Twin rings piston version.</strong></p>
<p><span style="color:#000000;">This Aprilia RS 125 140cc Big Bore Kit Comes With A Forged And Balanced<span style="color:#d0121a;"> <strong>twin rings</strong></span> Vertex Piston Kit, Cylinder Bored To 57mm (140cc) Gaskets And A Power Valve Spacer.</span></p>
<p><span style="color:#000000;">We feel the Italkit Aprilia RS125 big bore kit is the best big bore kit on the market for the Aprilia RS125, unlike the Polini 154 kit, the Italkit likes to rev like a 125 but still gives you more power all though the rev range.</span></p>
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<p><span style="text-decoration:underline;"><strong>With 2 rings piston version</strong></span></p>
<p>125cc 54mm Rotax 122 Cylinder to fit the Rotax 122 type engine.</p>
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<p><span style="text-decoration:underline;"><strong>With 1 ring racing piston</strong></span></p>
<p>125cc 54mm Rotax 122 Cylinder to fit the Rotax 122 type engine.</p>
<p><span style="text-decoration:underline;"><strong>With 2 rings piston version</strong></span></p>
<p>125cc 54mm Rotax 123 Cylinder to fit the Rotax 123 type engine.</p>
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<p>Athena cylinder OEM bore Ø56 Suzuki RGV 250 91-96 / Aprilia RS250 95-03</p>
<p>The cylinder is made of a high-silicon-content aluminum alloy machined using innovative technology and state-of-the-art Computer Numerical Control (CNC) machine tools to ensure tight manufacturing tolerances and maximum precision.<br /> <br /> The cylinder is ready to be installed with no changes to the engine crankcase required, and includes the oil tank mixer fitting and the brass bushing for the exhaust valve shaft, all preassembled. The latter features a threaded valve seat instead of the classic pressed-fit type, making any future disassembly and reassembly operations much simpler.</p>