For 2011 Suzuki has taken the reigning FIM/AMA Supercross Championship winning RM-Z450, and have fine-tuned it into an even more potent machine. The 2011 RM-Z450 has undergone numerous updates: it now meets a stricter AMA noise limit (94db) while keeping smooth engine output; the compression ratio has been increased from 12.2:1 up to 12.5:1 for higher output; intake and exhaust timing has been changed for better engine feeling with lower noise output; and ECU settings have been updated for more linear acceleration and improved over-rev. In addition, Suzuki has also focused on making tuning and maintenance easier on the 2011 RM-Z450; two optional couplers come with the unit to change the EFI setting (richer and leaner), and a convenient fuel line cap is included for regular maintenance.
2011 Suzuki RM-Z450 Specifications
| Year | 2011 |
| Manufacturer | Suzuki |
| Model | RM-Z450 |
| Engine Type | 4-stroke, single cylinder, DOHC |
| Engine Displacement | 449cc |
| Bore & Stroke | NA |
| Compression Ratio | NA |
| Cooling | Liquid-Cooled |
| Fuel System | Suzuki fuel injection |
| Ignition | Electronic ignition (CDI) |
| Starting System | Primary kick |
| Transmission | 5-speed constant mesh |
| Final Drive | Chain, DID520MXV4, 114 links |
| Rake and Trail | NA |
| Wheel Base | 58.9 in. |
| Seat Height | 37.6 in. |
| Front Suspension | Swingarm, link type, coil spring, oil damped |
| Rear Suspension | Swingarm, link type, coil spring, oil damped |
| Front Brake | Disc brake |
| Rear Brake | Disc brake |
| Front Tire | 80/100-21 51M, tube type |
| Rear Tire | 110/90-19 62M, tube type |
| Fuel Capacity | 1.6 gal. |
| Dry Weight | 249 lbs. (Wet) |
| MSRP | $8,149 |
2011 Suzuki RM-Z450 Pictures
