2008
Pro-One Hyper 4 Pro-Quad Chopper - Specifications & Review

Article Complete Info
| Articleid | 473590 |
|---|---|
| Category | Custom-cruiser |
| Make | Pro-One |
| Model | Hyper 4 Pro-Quad Chopper |
| Year | 2008 |
Chassis, Suspension, Brakes & Wheels
| Frontbrakes | Single disc |
|---|---|
| Frontbrakesdiameter | 292 mm (11.5 inches) |
| Frontsuspension | Hard-chrome fork tubes |
| Rake | 40.0° |
| Rearbrakes | Single disc |
| Rearbrakesdiameter | 292 mm (11.5 inches) |
| Rearsuspension | Dual adjustable shock |
Engine & Transmission
| Compression | 8.2:1 |
|---|---|
| Displacement | 1982.96 ccm (121.00 cubic inches) |
| Enginedetails | V2, four-stroke |
| Exhaustsystem | Chrome exhaust with heat shields |
| Fuelsystem | Carburettor. 45mm Mikuni |
| Gearbox | 6-speed |
| Ignition | Crank-triggered electronic ignition |
| Power | 100.00 HP (73.0 kW)) @ 5300 RPM |
| Torque | 121.20 Nm (12.4 kgf-m or 89.4 ft.lbs) @ 4200 RPM |
| Transmissiontypefinaldrive | Belt |
Other Specifications
| Coloroptions | Red |
|---|---|
| Starter | Electric |
Physical Measures & Capacities
| Dryweight | 310.3 kg (684.0 pounds) |
|---|---|
| Fuelcapacity | 15.14 litres (4.00 gallons) |
| Groundclearance | 121 mm (4.8 inches) |
| Overalllength | 2,743 mm (108.0 inches) |
| Powerweightratio | 0.3223 HP/kg |
| Seatheight | 635 mm (25.0 inches) If adjustable, lowest setting. |
About Pro-One
Country of Origin:
United States
Founder:
Pro-One Performance Manufacturing
Best Known For:
Billet motorcycle components (triple trees, controls, wheels) and show-quality hardware
Company History
Pro-One earned a reputation in the American V-twin world for precisely machined billet aluminum parts that elevate both appearance and function. Its triple trees, risers, wheels, and forward controls became staples of quality builds because they lined up correctly, resisted corrosion, and came with consistent hardware. As the custom scene matured, Pro-One expanded into lighting housings and integrated controls that cleaned up cable runs and simplified maintenance. The brand’s value was predictability: parts arrived straight, finish matched across batches, and instructions made sense to pros and home builders alike. Historically, Pro-One represents the supplier tier that turned one-off customs into repeatable quality—components that look like jewelry but install like professional kit, helping thousands of garage projects feel factory-solid on the road.
