High-quality connecting rod kit designed for Fantic and Yamaha models, engineered for durability and precision to meet demanding performance requirements. Manufactured to OEM specifications, this kit ensures reliability and easy installation.

Features:

• Manufactured from hot-rolled ASTM 4115 steel and case-hardened to 58–62 Rc for superior strength.


• Advanced design incorporates side scalloping and vent slots to reduce high RPM bearing race distortion.


• Double-forged rods ensure improved grain flow and dimensional consistency.


• Shot-peened and double-honed for enhanced strength under heavy loads.


• Double-drilled small ends improve lubrication and cooling for the wrist pin bearing.


• Silver-coated thrust washers and crank pin bearings for enhanced lubricity and reduced friction.


• Includes rod, crank pin, crank pin bearing, top end bearing, and thrust washers for a complete rebuild solution.

Specifications (mm):

• Big End Bore: 31.00


• Big End Width: [Data missing]


• Center to Center: 125.00


• Pin Diameter: 24.00


• Pin Length: 58.70


• Small End Bore: 22.00


• Small End Width: [Data missing]


• Washer Thickness: 0.85

Cross-Reference OEM Part Numbers:

• Yamaha: 5CU-11651-00-00, 5MW-11651-00-00


• Athena: P40321019


• Psychic: MX-09083


• ProX: 03.2309


• Wossner: P2028


• Hot Rods: 8156, 8726

Vehicle Fitment:

Fantic:

• XX 250 (2022–2023)

Yamaha:

• YZ250 (1999–2021)


• YZ250X (2016–2021)

Part Number: 56-163.HR