Key performance

60 ch
Power
🔧
449 cc
Displacement
⚖️
112 kg
Weight
💺
960 mm
Seat height
6.3 L
Fuel capacity
💰
9 349 €
New price
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Technical specifications

Changements 2019 2022
Fuel system
Injection Injection. 44mm throttle body
Ignition
Electronic ignition CDI
Frame
périmétrique en aluminium Aluminum alloy, twin-spar
Clutch
Wet, multi-plate
Front suspension
Inverted telescopic, coil spring, oil damped, adjustable damping force Inverted telescopic, coil spring, oil damped, adjustable damping force
Rear suspension
BFRC - link type, coil spring, oil damped, adjustable spring preload and damping force BFRC-link type, coil spring, oil damped, adjustable spring preload and damping force
Rear wheel travel
310 mm (12.2 inches)
New price
9 099 € 9 349 €

Engine

Displacement
449 cc
Power
60.0 ch (44.1 kW)
Engine type
Single cylinder, four-stroke
Cooling
Liquid
Compression ratio
12.5:1
Bore × stroke
96.0 x 62.1 mm (3.8 x 2.4 inches)
Valves/cylinder
4
Camshafts
2 ACT
Fuel system
Injection. 44mm throttle body
Valve timing
Double Overhead Cams/Twin Cam (DOHC)
Lubrication
Semi-dry sump
Ignition
CDI
Starter
Kick

Chassis

Frame
Aluminum alloy, twin-spar
Gearbox
5-speed
Final drive
Chain   (final drive)
Clutch
Wet, multi-plate
Front suspension
Inverted telescopic, coil spring, oil damped, adjustable damping force
Rear suspension
BFRC-link type, coil spring, oil damped, adjustable spring preload and damping force

Brakes

Front brakes
Single disc
Rear brakes
Single disc
Front tyre
80/100-21
Rear tyre
110/90-19

Dimensions

Seat height
960.00 mm
Wheelbase
1480.00 mm
Ground clearance
330.00 mm
Length
2175.00 mm
Width
835.00 mm
Height
1260.00 mm
Fuel capacity
6.30 L
Weight
112.00 kg
Dry weight
112.00 kg
New price
9 349 €

Overview

So, are we still doing things the old way at Suzuki? With the RM-Z450, the answer is yes, and it’s a choice that stands out in 2024. Imagine the scene: you’re on the starting grid, surrounded by competitors idling, ready to launch with the press of a button. You, however, will need to give a good, firm kick to the starter, a ritual that’s almost archaeological in the premier motocross class. That’s the first observation, and it’s significant: the Suzuki RM-Z450 is indeed the only 450 motocross bike not equipped as standard with an electric starter. A radical, perhaps a little too much, choice that makes some smile and irritates others seeking uncompromising modernity.

Suzuki RM-Z450

However, don't be fooled. Beneath this veneer of tradition lies a racing beast with an undeniable pedigree, forged by decades of championship success. Its 449 cc engine, which delivers approximately 60 horsepower, has been reworked to offer lower torque and a flatter power curve. The goal? A bike that is easier to ride, more predictable, that exits corners smoothly without abrupt jolts. It weighs 112 kg fully fueled, a weight within the average of the segment, but it is in its handling that it seeks to distinguish itself. The chassis, with a wheelbase of 1480 mm, has been revised to better distribute the weight and gain agility, notably thanks to a fork tube set back 10 mm. The whole is suspended by serious Showa equipment, with a spring fork at the front and the famous BFRC shock at the rear, which provides real comfort and quality terrain tracking.

The major electronic asset is its S-HAC system, an adjustable launch assist with three modes. It analyzes throttle opening and gear selection to optimize ignition during the crucial first six seconds. It’s intelligent, effective, and somewhat compensates for the absence of electric start by propelling you as needed from the starting grid. The arrival of MX Tuner 2.0 as standard is also appreciated, a unit that allows via an app to modify the injection and ignition mapping on 36 points. A valuable tool for demanding riders who want to fine-tune their machine. But let's admit it, faced with a KTM 450 SX-F or a Kawasaki KX450, crammed with traction control electronics and engines with a more explosive response, the Suzuki plays the card of simplicity and progressiveness.

So, who is the rider of the RM-Z450? It’s the seasoned veteran, the one who prioritizes the pure sensation and mechanical connection over digital sophistication. It’s the one who doesn’t mind a kick and is looking for a balanced, reliable, and incredibly easy-to-turn bike. For a little over €9300, it offers a coherent package, even if this price for the Suzuki RM-Z450 2022 (and which should remain stable for the 2025 model) sets the bar high against more modern approaches. It’s not the most radical, nor the most powerful, but it has a soul and a logic that will appeal to purists. A dinosaur? No. Rather, an irreducibly authentic machine.

Indicators & positioning

Weight-to-power ratio
0.53 ch/kg
🔧
Volumetric power
131.8 ch/L
In category Cross / motocross · 225-898cc displacement (383 motorcycles compared)
Power 59 ch Top 17%
17 ch median 47 ch 63 ch
Weight 112 kg Lighter than 33%
103 kg median 109 kg 132 kg
P/W ratio 0.53 ch/kg Top 18%
0.13 median 0.46 0.58 ch/kg

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