Product information "VHM COMBUSTION CHAMBER YAMAHA YZ 250 - STD"
VHM COMBUSTION CHAMBER
MODEL VARIANT:
STANDARD
COMBUSTION CHAMBER VOLUME:
20.60 ccm
CRIMPING EDGE DIMENSION:
1.50 mm
PISTON HEIGHT:
+2.80 mm
PISTON CROWN TYPE:
ROUNDED
PROPERTIES:
Optimum tuning in terms of overall performance. Good torque in the low and medium rev range and still good revving power in the upper range. Good peak power without a "hole" in the lower rev range
Optimum overall performance across the entire rev range.
ONLY SUITABLE FOR THE VHM CYLINDER HEAD PART NO.: AA33080
