
PROX Cast Piston (manufacturer reference: 01.7203.B) — replacement piston designed for 125 cm3 engines of roadsters. Aluminum piston, oversize +0.01 (letter B), intended for reassembly during an engine overhaul or replacement after wear.
This cast piston installs in the cylinder after checking the bore and allows for restoring the manufacturer's specifications for engine refurbishment. It is suitable for the listed applications and for engines requiring an oversize +0.01. To ensure proper installation, use with the appropriate rings and needle bearing indicated above.
Main compatibilities (examples): APRILIA RX 125 (2010), CAGIVA W8 125 (2001), APRILIA RS 125 (2010). Before installation, verify the manufacturer references and the condition of the cylinder to ensure proper piston fit.