| MODEL | HONDA T4 CONCEPT 2001 |
| Year | 2001 |
| Engine Type | Flat-six (horizontally opposed six-cylinder), Gold Wing-derived |
| Displacement / Capacity | — |
| Bore X Stroke | — |
| Compression Ratio | — |
| Cooling System | — |
| Max Power | — |
| Max Torque | — |
| Ignition | — |
| Induction | — |
| Start System | — |
| TRANSMISSION SPECS | |
| Lubrication | — |
| Gear Box | — |
| Clutch | — |
| Final Drive | Shaft (exposed, outboard) |
| CHASSIS SPECS | |
| Frame | Seamless aluminium spar frame welded from three pieces; three-piece billet aluminium swingarm |
| Front Suspension | — |
| Rear Suspension | — |
| Front Brakes | — |
| Rear Brakes | — |
| DIMENSION SPECS | |
| Overall Length | — |
| Overall Width | — |
| Overall Height | — |
| Seat Height | — |
| Wheelbase | — |
| Ground Clearance | — |
| Dry Weight | — |
| Wet Weight | — |
| WHEEL SPECS | |
| Front Tyre | — |
| Rear Tyre | 26.0 x 9.0-15 Goodyear drag slick |
| FUEL SYSTEM | |
| Fuel Capacity | — |
| Fuel Consumption | — |
| Top Speed | — |
The T4 was one of four flat-six-engined custom concepts commissioned by Honda R&D America in Torrance, California, to let designers work free of mass-production constraints. Built by fabricator Mike McCluskey over roughly two years, it featured a three-piece welded aluminium spar frame, a billet swingarm with exposed driveshaft, a huge drag-slick rear tyre and a brushed, clear-coated finish with flush Allen hardware. It was a styling and craftsmanship exercise linked to the thinking behind the 2002 VTX rather than a production preview.
