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Upgrade your engine with the HOT RODS HR00175 connecting rod kit, designed for high-performance applications on Gas Gas EX250F/MC250F, Husqvarna FC250, and KTM 250SX-F/250XC-F models. Crafted from certified 8620 AISI steel, these heavy-duty connecting rods offer superior strength and durability, ensuring reliable operation under demanding conditions. The crankpins are manufactured from hot-rolled ASTM 4115 steel and are case hardened to a level of 58-62 Rc, providing exceptional wear resistance and longevity. Featuring the latest caged needle roller bearing designs, these rods are optimized for high rpm performance, reducing friction and enhancing durability at elevated engine speeds. The big end incorporates strategically placed side scalloping and vent slots to minimize bearing race distortion during high rpm operation, promoting consistent performance. The small ends are double drilled to supply additional lubrication and cooling to the wrist pin bearing, which is crucial when the piston crown operates close to the wrist pin, preventing overheating and wear. The rods are shot-peened to eliminate surface stress risers and to smoothly blend the radiuses of the forging, increasing fatigue strength and reliability. Double honing ensures an ultra-round bearing surface, providing precise alignment and smooth operation at high rpm. Most assemblies are sold complete with the rod, crank pin, crank pin bearing, top-end bearing, and silver-coated bronze phosphor thrust washers, offering a comprehensive upgrade package. Proudly made in the USA, these connecting rods are compatible with OEM crankshafts and hot rod builds, making them an ideal choice for enthusiasts and professional rebuilders seeking durability and performance in their engines.
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