JE Pro Series Pistons
Fitment:
-03-05 KTM 450 EXC
-03-05 KTM 450 MXC
-08-09 KTM 450 XC
-06-07 KTM 450 XC-W
Bore Size: 89mm (Stock Bore).
Replacement Components are available, please see below.
Includes:
-JE Forged Piston
-JE Piston Ring Pack
-JE Wrist Pin
-1 Set of JE Piston Pin Clips
Piston Specs:
89mm 12.5:1 Pistons (274221):
-Bore Diameter: 89.00mm
-Piston Head Type: Dome
-Cylinder Head: 450XC
-Piston Pin Outside Diameter: 0.787"
-Piston Pin Length: 2.250"
-Piston Pin Material: 9310 Steel
-Ringset Included: Yes
-Top Compression Ring Thickness: 0.0397"
-Oil Ring Thickness: 0.111"
-Piston Material: 2618 Aluminum Forged
-Forging Type: Round
-Piston Avg Weight: 261 g
-Pin Wall Thickness: 0.140"
89mm 13:1 Pistons (274219):
-Bore Diameter: 89.00mm
-Piston Head Type: Dome
-Cylinder Head: 450XC
-Piston Pin Outside Diameter: 0.787"
-Piston Pin Length: 2.250"
-Piston Pin Material: 9310 Steel
-Ringset Included: Yes
-Top Compression Ring Thickness: 0.0397"
-Oil Ring Thickness: 0.111"
-Piston Material: 2618 Aluminum Forged
-Forging Type: Round
-Piston Avg Weight: 261 g
-Pin Wall Thickness: 0.140"
12.5:1 Piston will work well with 91+ Octane Pump Gas. 13:1 Piston requires 100+ Octane Fuel. Pistons are a 2-Ring Piston Design for lightweight racing applications.
Replacement Components:
Replacement Ring Pack:
-JG4301-3504 (Fits All Pistons)
Replacement Wrist Pin:
-787-2250-14-93C (Fits All Pistons)
Replacement Wrist Pin Clips:
-787-050-MW (Fits All Pistons)
