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ST4 Two Seater Specifications:
Wheelbase = 90.5" (2300mm)
Overall Width = 73.5" (1867mm)
Overall Length = 127" (3225mm)
Overall Height = 58" (1473mm)
Estimated Weight = 1000 lbs (450 kg)
Ground Clearance = 15.5" (394mm)
Susp. Travel (Front) = 14" (356mm)
Susp. Travel (Rear) = 14" (356mm)
Steering Type = Rack & Pinion
Brakes (Front) = Dual Disc Brakes
Brakes (Rear) = Single Disc Brake
Engine Type = 600cc+ Motorcycle Engine
Drivetrain = Chain / U-Joint Driveshafts (no differential)
Tires = AT26x7-15 (full size spare)
Wheels = 15x7, 5+2 offset, 4 on 100mm
Safety: Design includes mounts for 5 point racing harnesses (driver & passenger), racing certified polyethylene bucket seats, racing certified brake & clutch foot controls, dual front disc brakes, single rear disc brake, professionally designed rollcage/chassis system.
Handling: Rack & pinion steering system, adjustable camber angles in front suspension/steering, 15 degrees of built-in castor angle in steering system (self-centering steering), 14" of wheel travel at all corners, double a-arm suspension all around, fully adjustable & tunable Fox 2.0 series air shocks (rebuildable & tunable dampening), lightweight tubular steel chassis design @ approx 200 lbs (ie: lightweight means improved power-to-weight ratio & improved handling/cornering). Overall vehicle will weigh approx 900 lbs with engine.
Ease of Fabrication: 100 page instruction manual include step-by-step progressive construction drawings with sub-assemblies, weldments, bending details, flat plate details, etc... Basically, you start at the beginning of the plans & work your way through step-by-step. Every drawing has a parts/materials list (where applicable). Chassis drawings show you how to start by making a square tube base frame then progressively build upon that starting point. All materials are readily available worldwide.
Approx Cost to Build: Steel $1200 Canadian Dollars, Parts $5000 Canadian Dollars