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The last numbers of the part number are engraved on the insert for identification
40cc volume is the VHM standard for Yamaha YZ85 and is developed for the best overall performance
Exceeds the requirements of JASO MA2
Insert (standard 11
VHM Insert Aprilia RSW125 APC (10.20cc) AE32076-AC70 RM85 The last numbers of theThis 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
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