Key performance

60 ch
Power
🔧
449 cc
Displacement
⚖️
112 kg
Weight
💺
955 mm
Seat height
6.2 L
Fuel capacity
💰
8 899 €
New price
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Technical specifications

Changements 2009 2016
Power
60.0 ch (44.1 kW)
Compression ratio
12.2:1 12.5:1
Valves/cylinder
4
Camshafts
2 ACT
Lubrication
Semi Dry sump Semi-dry sump
Ignition
Electronic ignition ( Electronic ignition
Starter
Kick
Frame
périmétrique en aluminium
Front suspension
Telescopic, coil spring, oil damped Inverted telescopic SFF-Air suspension
Rear suspension
Link type, coil spring, oil damped Showa link type, coil spring, oil damped
Rear wheel travel
310 mm (12.2 inches)
Front tyre
80/90-21 80/100-21
Wheelbase
1480.00 mm 1495.00 mm
Ground clearance
350.00 mm 325.00 mm
Length
2185.00 mm 2190.00 mm
Height
1260.00 mm 1270.00 mm
New price
8 899 €

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
Valve timing
Double Overhead Cams/Twin Cam (DOHC)
Lubrication
Semi-dry sump
Ignition
Electronic ignition
Starter
Kick

Chassis

Frame
périmétrique en aluminium
Gearbox
5-speed
Final drive
Chain   (final drive)
Front suspension
Inverted telescopic SFF-Air suspension
Rear suspension
Showa link type, coil spring, oil damped
Rear wheel travel
310 mm (12.2 inches)

Brakes

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

Dimensions

Seat height
955.00 mm
Wheelbase
1495.00 mm
Ground clearance
325.00 mm
Length
2190.00 mm
Width
830.00 mm
Height
1270.00 mm
Fuel capacity
6.20 L
Weight
112.00 kg
New price
8 899 €

Overview

What remains of a motocross bike when stripped of all modern electronic aids? The Suzuki RM-Z450, in its 2016 version, bluntly answers this question. With its 449 cm³, single-cylinder four-stroke engine, and 60 horsepower, it lines up on paper with the other 450s on the market. But the devil is in the details, or rather in the absences. While all the competition has adopted electric start, Suzuki persists with a good old kick starter. A choice that grates in 2016, and weighs into the balance at €8899. For this price, you get a machine weighing 112 kg fully fueled, powered by a 6.2-liter tank, and with a seat height of 955 mm. The target audience? Purists, experienced riders who prefer mechanical simplicity and are not afraid to give a heel strike.

Suzuki RM-Z450

Yet, this RM-Z is not an antiquity. Its perimeter aluminum frame has been reworked to gain rigidity and lightness. The real revolution comes from its Showa SFF-Air front fork, an air suspension that eliminates the coil spring and allows for fine adjustment via pressure valves. A not negligible weight saving, but above all an appreciable modularity to adapt to different tracks and body types. At the rear, the traditional Showa combination does its job with precision. On the braking side, we remain with a simple disc at the front and rear, sufficient for motocross where engine braking often takes precedence.

The marketing argument of the time was its flagship electronic system: the Suzuki Holeshot Assist Control, or S-HAC. Two modes to optimize ignition at the start, depending on whether the track is greasy or grippy. An innovation tested in the championship, which aimed to make up for lost ground on EFI. Because yes, this bike has a glorious past: it was the first to adopt electronic injection in 2007, and has amassed world and national titles under the saddle of legends like Carmichael or Dungey. But in 2016, facing KTM or Kawasaki models packed with electronics, the S-HAC looked a little like a gadget to mask the absence of a real traction control system.

So, who buys a Suzuki RM-Z450 today? Certainly not a beginner, intimidated by the kick starter and the liveliness of a large single-cylinder. It is a machine for the experienced rider, who values a raw and direct feel, a precise chassis, and high-end suspension. A track rider who prefers to adjust his bike with wrenches and his wrist rather than with a digital menu. Its price places it in the big leagues, but the absence of an electric starter makes it unique, even anachronistic. It recalls an era when motocross was a matter of pure mechanics, feeling, and skill. A courageous, or stubborn, choice depending on whether you are in the camp of traditionalists or modernists.

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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