The Suzuki RM250 and RM125 share a similar chassis configuration, and have similar updated features in this area on the 2004 models.

A completely new rear shock linkage system giving more progressive rear shock action is featured on both bikes.

The RM250 benefits from new Showa twin-chamber cartridge-type front forks and new Showa piggyback-reservoir rear suspension for excellent shock absorption and feel.

The front fork offset of the RM250 has been changed from 24.5mm to 22.5mm for improved cornering performance.

Significant upgrades to the brake packages of both Suzuki off-roaders include a new floating disc brake system and a new front brake master cylinder for more controllable stopping power.

Other changes include a redesigned rear brake master cylinder and a larger  rear brake pad retainer for less brake drag.

For 2004, the RM250 and RM125 will also have a thicker rear wheel rim for greater durability.

Both motocross machines also have an updated shift cam stopper for a smoother gear shifting feel, while an improved riding position provides greater freedom of weight transfer.

A redesigned fuel tank prevents fuel from floating backwards, while revised fuel tank mounting bolts allow for easier maintenance.

2004 Suzuki RM125 - Engine

Changes to the RM125 powerplant include a new combustion chamber with a reshaped cylinder head and a new flat-top piston for improved engine power and reduced detonation.

Reshaping of the main exhaust port, scavenging ports and new sub-exhaust ports has improved the engine characteristics and acceleration of the RM125.

Updates to the exhaust system include a review of the intake and exhaust valve timing for improved engine power and a new actuator for more reliable exhaust valve operation.

A redesigned air cleaner box houses a more coarse air-filter which improves engine performance and throttle response.

An 8mm increase to the connecting rod provides enhanced traction, and both 2004 "senior" Suzukis will also have increased crank inertia for better controllable engine characteristics and excellent acceleration.

The 'K3' RM125 is expected to be available in September 2003.