Roadster Specifications Wheelbase 85 Inches Ground Clearance 5.5 Inches Weight (standard car no batteries) 541 lb. Front Wheels 13”x7 Polished Aluminum Rear Wheels 14”x7 Polished Aluminum Front Tire Size P165 70/R13 Rear Tire Size P185 60/R14 Front Brakes Hydraulic Disk Rear Brakes 7” Mechanical Drum Type Drive Motor Direct Drive, 48 Volts DC, Series Wound 11 hp Transaxle Double Reduction, High Speed Gears, reduced speed reverse Electrical System 48 Volt DC Speed Controller 400 Amp Alltrax, Inc. 4844AXE Charging System On-board Delta-Q IntelliQ Batteries 6 Trojan 8-volt Steering Self-adjusting Rack and Pinion Chassis Aluminum I-beam Body One-piece Fiberglass Composite Body Finish Automotive Paint Interior Material Marine-type Vinyl Carpet Marine-type synthetic Forward Speed 21 - 25 mph Braking Distance (at 12