| ATK's profilation of this bike |
| Rotax 4 stroke engine (560GS-A) |
| General information |
|---|
| Model: | ATK 604 MX |
| Year: | 1991 |
| Category: | Cross / motocross |
| Rating: | 65.6 out of 100. Show full rating and compare with other bikes |
| Engine and transmission |
|---|
| Displacement: | 562.00 ccm (34.29 cubic inches) |
| Engine type: | Single cylinder, four-stroke |
| Power: | 40.00 HP (29.2 kW)) |
| Compression: | 9.8:1 |
| Bore x stroke: | 94.0 x 81.0 mm (3.7 x 3.2 inches) |
| Valves per cylinder: | 4 |
| Fuel system: | Carburettor. Mikuni TM 38 Flat Slide |
| Fuel control: | Double Overhead Cams/Twin Cam (DOHC) |
| Ignition: | CDI - Electric Advancing System |
| Lubrication system: | Dry Sump System |
| Cooling system: | Air |
| Gearbox: | 5-speed |
Transmission type,
final drive: | Chain |
| Clutch: | wet plate |
| Exhaust system: | Supertrapp -Stainless-Steel |
| Chassis, suspension, brakes and wheels |
|---|
| Frame type: | Nickel-Plated-Heat-Treated-Chromoly |
| Front suspension: | WP Adjustable USD |
| Front wheel travel: | 300 mm (11.8 inches) |
| Rear suspension: | WP Multi-Adjuster Shock (Linkless) |
| Rear wheel travel: | 330 mm (13.0 inches) |
| Front tyre: | 80/100-21 |
| Rear tyre: | 120/90-18 |
| Front brakes: | Single disc. 2-piston calipers |
| Front brakes diameter: | 24 mm (0.9 inches) |
| Rear brakes: | Single disc. Disk mounted on front-sprocket . 1 piston caliper |
| Rear brakes diameter: | 14 mm (0.6 inches) |
| Physical measures and capacities |
|---|
| Dry weight: | 122.9 kg (271.0 pounds) |
| Power/weight ratio: | 0.3254 HP/kg |
| Seat height: | 950 mm (37.4 inches) If adjustable, lowest setting. |
| Overall length: | 1,473 mm (58.0 inches) |
| Overall width: | 860 mm (33.9 inches) |
| Ground clearance: | 343 mm (13.5 inches) |
| Wheelbase: | 1,473 mm (58.0 inches) |
| Fuel capacity: | 17.41 litres (4.60 gallons) |
| Oil capacity: | 2.30 litres (0.15 quarts) |
| Other specifications |
|---|
| Color options: | White |
| Starter: | Electric & kick |
| Further information |
|---|
| Insurance costs | Get a US insurance quote from Progressive. |
| Parts finder |
Chaparral provides online schematics & OEM parts for the US.
2Wheels offers first time 2Wheels buyers $10.00 off now. Same day shipment to the US.
Also check out our overview of motorcycle webshops at Bikez.info. |
| Motocross parts | Parts and accessories available from Revzilla Motocross . Ships to most countries. |
| Ask questions | Join the 91 ATK 604 MX discussion group or the general ATK discussion group. |
| Related bikes | List related bikes for comparison of specs. |
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(68.3 out of 100)