VHM Cyl. head nsert Aprilia RS125, type APC 10.77 +1.50 0.75

This insert has a lower volume / higher compression ratio, meaning more low and middle range torque. This improves acceleration and gives an increased torque feeling when exiting corners. However, keep in mind that this compromises top speed. The last numbers of the part number are engraved on the insert for identification.

• More bottom power reaction
• Quick to adjust

It's recommended to use good fuel against detonation. Type APC