Banshee (’87-’06)(+4mm stroke) with +5mm longer rods; Produces up to 403ccFactory welded, trued, and balancedImportant: Requires Vertex Long Rod pi…
Product Overview
High-performance stroker crankshaft engineered for the Yamaha Banshee 350, designed to increase stroke by 4mm over OEM specifications. Built using aerospace-grade forged steel and CNC-machined for extreme durability, precision fitment, and smooth high-RPM operation in both stock and aftermarket engines.
Technical Specifications
Stroke Increase
+4 mm over OEM
Material
Aerospace-grade forged steel alloy
Manufacturing
CNC-machined, precision heat-treated
Weight
Approx. 4.5 lbs (varies slightly by batch)
Balance
Dynamic balancing for smooth operation
Compatibility
Yamaha Banshee 350 (1987–2006), stock and aftermarket engines