Since its introduction, the TRX680FA has remained at the top of its class--a direct result of its impressive technical credentials. Consider the TRX680FA’s powerful 675cc engine, independent rear suspension, electronic fuel injection, Hondamatic automatic transmission, four-wheel disc brakes and more, and you begin to understand why many off-road adventurers consider this the ultimate ATV ride.


    • Extensive weight-saving measures include the use of aluminum for the following components: forged front upper control arms, rear upper and lower control arms, rear knuckles, front and rear wheels.
    • Multi-function LCD digital instrumentation is compact, tough and waterproof, featuring large readouts for gear-selector position, speedometer, odometer, resettable tripmeter and hourmeter/clock. Instrument housing includes LEDs for Drive, Neutral, Reverse, temperature warning and FI warning indicator. A fuel gauge and low-fuel warning light located within the instrument housing comes as standard equipment.
    • Waterproof accessory socket provides 12-volt, 10-amp power with a built-in temperature-type fuse.
    • Thickly padded seat uses dual-density foam to provide all-day riding comfort.
    • Side-opening compartment has 4 liters of storage capacity and can be opened when the rider is seated.
    • Stainless-steel exhaust system includes a muffler designed for quiet operation without wool packing for long-lasting performance.
    • Washable foam air filter for easy maintenance.


    • Advanced-design Longitudinally Mounted Engine.
    • Four-valve cylinder head with two short pushrods provides a broad powerband for optimum performance and engine efficiency.
    • Camshaft is located adjacent to the cylinder head, reducing engine height. Together with the unique, semi-dry sump, engine height is further reduced for a low center of gravity and excellent handling.
    • Semi-dry-sump oiling system locates the oil tank inside the engine cases, lowering engine height and allowing optimum engine placement for excellent ground clearance and superb handling.
    • Programmed Fuel Injection (PGM-FI).
    • The automotive-style Honda automatic transmission features a hydraulic torque converter, three hydraulic clutches and an Electronic Control Module (ECM) to automatically select one of three forward gears and one Reverse gear. The ECM monitors throttle opening, vehicle speed, engine rpm, gear selector position, brake application and engine oil temperature.
    • The compact and maintenance-free transmission design means there are no belts to wear out and replace. It also features a filtration system to protect against external contamination. By using this multi-filtered engine oil as hydraulic fluid, the design also simplifies maintenance and ensures an adequate oil supply in all operating conditions.
    • TraxLok® selectable 2WD/4WD system.
    • Torque-Sensitive Front Differential.
    • Electric Shift Program (ESP).
    • A handlebar-mounted control switches the automatic transmission between ESP mode and automatic operation.
    • A convenient column-style shift lever permits the rider to easily select Drive, Neutral or Reverse.


    • A rugged steel perimeter frame and four-wheel independent suspension provide an exceptional 254mm of ground clearance.
    • Honda’s independent rear suspension uses a double-wishbone design and features forged-aluminum knuckles and upper/lower A-arms to substantially reduce unsprung weight. The rear knuckle pivots use lightweight metal bushings in place of conventional ball joints and radius arms, eliminating geometry variations as the rear suspension travels through its stroke. This simple design maintains rear wheel alignment and further reduces unsprung weight, contributing to responsive overall handling.
    • Independent double-wishbone front suspension uses premium shock absorbers to provide 175,3mm of suspension travel for a plush, comfortable ride.
    • Lightweight single-tube gas-charged rear shocks and an anti-sway bar provide plush, well-controlled damping throughout the TRX680FA’s exceptional 203,2mm of wheel travel.
    • Dual front disc-brake calipers feature a patented built-in scraper system. This helps prevent the buildup of debris between caliper and rim, ensuring consistent braking performance.
    • A rear center hydraulic disc brake and self-adjusting mechanical rear parking brake are mounted on the rear driveshaft, further reducing unsprung weight and contributing to the TRX680FA’s considerable ground clearance.

    Technical Specification

    Parts Description
    Engine type 675cc liquid-cooled OHV semi-dry-sump longitudinally mounted single-cylinder four-stroke
    Bore and Stroke 102.0mm x 82.6mm
    Carburetion Electronic fuel injection with IACV idle control
    Ignition Full-Transistorized type with electronic advance
    Starter Electric with auxiliary recoil
    Transmission Automatic with hydraulic torque converter three forward gears reverse and electronic controls
    Driveline Direct front and rear drive-shafts with torque-sensitive front differential
    Front suspension Independent double-wishbone; 175mm travel
    Rear suspension Independent double-wishbone; 203mm travel
    Front brakes Dual hydraulic 180mm disc
    Rear brakes Single hydraulic disc
    Front tyres 25 x 8-12 radial
    Rear tyres 25 x 10-12 radial
    Length 2113mm
    Width 1189mm
    Height 1207mm
    Wheelbase 1290mm
    Seat height 876mm
    Ground clearance 254mm
    Fuel capacity 17 litre including 4 litre reserve
    Dry weight 272kg

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    Murphy Machinery (Kilkenny) Ltd

    Dublin Road, Kilkenny, Ireland

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