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Extreme Performance V-Twin Primary Lube

Schaeffer’s Extreme Performance V-Twin Primary Lube 

is designed for use in HD Big Twin Models in the primary chain case and in the wet and primary/transmission common sumps found in Harley Davidson Sportster models with clutches sharing the same sump as the transmission gears.

Extreme Performance V-Twin Primary Lube can be used in chain cases equipped with original, modified or aftermarket high-performance clutch assemblies.

Here are some reviews from real customers:

Very good! Rode my street glide at the sturgis rally. Stop and go traffic and never missed a beat! Brian S.

Mechanic Recommendation. Schaeffer Lubes are the only brand used by my mechanic. He does all types of repairs and modifications on V-twins and builds drag engines. I switched from Amsoil for my bike and I am a dealer. Shaeffer is good stuff. Thomas R.