How’s this for a red-hot combination? Take the incredible versatility and performance of Suzuki’s renowned DR-Z400. Mix in street-legal capabilities and unmatched handling. Then add a double shot of aggressive Suzuki styling and attitude. The result is the 2006 DR-Z400SM.

For exceptional performance on the street, the DR-Z400SM offers remarkably smooth performance, along with a rush of torque across the powerband. For crisp handling, it features a lightweight, compact design, complemented by advanced suspension front and rear, including an RM250-derived inverted fork.

The DR-Z400SM Supermotard. It’s the definition of extreme performance - wherever you ride.

  • 2006 Suzuki DR-Z400SM
  • Year:
  • Make:
  • Model:
  • Horsepower @ RPM:
  • Displacement:
    398 L
  • Top Speed:
    93 mph
  • Price:

Key Features

Suzuki’s new Supermotard model based on DR-Z400S - combines Supermotard style and features in a narrow, lightweight street-legal package

Long travel, Showa-brand inverted front fork derived from RM250 - features adjustable compression/rebound damping and alumite coating on inner tube surfaces for smooth action

A fully-adjustable rear shock absorber with high/low speed compression damping adjuster and aluminum swingarm for precise rear wheel control

Strong braking performance supplied by a front disc brake with a large 310mm floating-type rotor and dual-piston caliper, plus 240mm rear disc brake with single-piston caliper

Black-painted 17" aluminum rims and radial tires: 120/70-R17 front, 140/70- R17 rear

Engine Features

Lightweight 398cc, DOHC, liquid-cooled, dry-sump engine produces strong, usable low-rpm power

Compact 4-valve cylinder head with 36mm intake valves, 29mm exhaust valves, narrow 28º included valve angle and shim-under-bucket valve adjustment system
SCEM-plated cylinder (nickel-silicon-phosphorous) is lighter and more durable than an iron liner with excellent heat transfer properties

Forged aluminum piston is 10% lighter than a cast piston and receives additional oil-cooling to the piston crown through a crankcase oil jet

Compact 5-speed transmission utilizes a cable-operated clutch with separate outer cover for simplified clutch maintenance

Additional weight savings with magnesium valve cover, clutch cover, and magneto cover

Smooth throttle response with a MikuniTM BSR36 CV-type carburetor fed by 6-liter airbox. The left side cover has quick-release fasteners for easy access to the air filter

Electric start with lightweight starter motor and a compact 6.5 amp maintenance-free battery

Automatic decompression system for quick/easy engine starts

Thermostatically-controlled cooling fan mounted to the left radiator helps maintain consistent operating temperature in traffic

Chassis Features

Compact digital instrument cluster with speedometer, odometer, twin-trip meters with addition/subtraction capability, clock, timer and stopwatch functions

On-road legal lighting with bright 60/55 watt halogen headlight, compact tail/stoplight, lightweight, rubber-mounted turn signals and horn

Narrow profile with smooth transitions between the tank, seat and bodywork

Chrome-moly steel frame is torsionally strong with minimal weight. The backbone tube, front down tube, and steering head gussets form the dry-sump engine oil tank

A bolt-on aluminum subframe helps reduce weight and simplify maintenance

Chrome-moly steel footpegs, aluminum rims/hubs, plus engine guard and rear disc guard

Cyril Demortier
About the author
What do you think?
Show Comments


  (6021) posted on 06.5.2008

I just got my bike and I got it up to 104 as well.. completely stock. 2008 not sure if it makes a diff.

  (6021) posted on 03.26.2008

Would the bike work for a commuter bike if I don’t hit any hi-ways? It would need to run at about 63 for 45 miles or so. Also how does the bike do on gravel roads? Are sandy 2 tracks out of the question with the stock tires?



  (1) posted on 03.9.2007

I just sold my R1, bought one, knowing what I am getting, put full performance exhaust system on, Dynojet stage 2 kit, 3x3 airbox mod, removed helmet lock, stock mirrors, weigh 450 grams each, changed them for 100 grammers, put alloy ZETA MX bars on,and ZETA wrap around hand guards, suspension is stock,but correctly setup for my weight by local pro, and a whole new beast, loving it, saving up for FCR carb,then it will be complete.

  (1) posted on 02.27.2007

My Bike will do 90 mph with pipes and a jet kit. But then it is really pushing the bike hard to get there.

I have owned a 2007 DRZ 400 SM (Black) for six months now. I have had a few problems with the bike.

The factory hose clamps between the carb and the head were loose, and my bike " ed" air and ran poorly. I fixed this by buying aftermarket hose clamps (the factory ones only go so tight, but in my case not tight enough).

Overall I like the bike. I is fun to ride, reliable, and gets a solid 55 mpg.

I have upgraded the exhast to a Leo Vance slip on, and had a jet kit done to the carb. It did make the bike run better as they are VERY STUFFY outta the box.

In my humble opinon, the bike needs more power, and I will be selling my bike and getting either the Aprilia SXV 550 or the Husky 510.

  (6021) posted on 10.25.2006

I have had the drz400sm for 2 weeks and I love this thing it loves to take the curves and the quik throttle respone is more than expected. I recomend this bike for anyone wanting alittle fun smiley

  (6021) posted on 10.23.2006

Just bought one, and am farely happy with it. However it is as stock as and I am after some advice on setting the suspension correctly, according to my weight. I am 95Kg so not the smallest bloke but is there anywhere that I can fine the info to set up correctly. Also where can I get the after market pipe, and accessories to give it a bit more nuts?

  (6021) posted on 09.27.2006

I have the 2007 drz400sm and the bike is super smooth and loves to rail turns. It gives the rider a ton of confidence due to the seat height, ground clearance and travel to absorb bumps and whip through turns. I used to race 30+ intermediate motocross on a crf450. I know what you mean when you say it feels illegal to ride this bike on the street. What a rush! I got mine up to 104 stock. Jet kit, air box, yoshi exhaust and a motoworks suspension is coming soon!

  (6021) posted on 08.25.2006

got one of these and put on muzzy exhaust, 3x3 hole in airbox and rejetted- good improvement. if you almost never ride on highways it’s a blast. the more twists and turns the better. 55 mpg. i always feel like i’m breaking the law when i ride this thing..

  (6021) posted on 08.25.2006

i am thinking of trading my R6 in for a new suzuki DRZ400sm and i would like to know if the DRZ is any good THANKS

  (6021) posted on 08.18.2006

dam good but the top speed is wrong because i have had my sm up to 102 and its all stock???????

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