SUZUKI DRZ 400 SM 2007        

Rider Weight in Kilograms:

Ideal Fork Rate: kg/mm

Ideal Shock Rate: kg/mm


Stock Fork Spring Rate: 0.440 kg/mm

Stock Shock Spring Rate: 5.50 kg/mm


Super Motard


Ideal Rider Weight 90 kg


4 Stroke Engine 400 cc


Teflon Shaft Bushing - 16id x 18 x 12

Teflon Shaft Bushing - 16id x 18 x 12

22-076-00

$11.00

Spring Perch Kit - 24mm TCV Showa

Spring Perch Kit - 24mm TCV Showa

30-004-34

$233.01

Showa Piston Band 50 x 13 x 1.2

Showa Piston Band 50 x 13 x 1.2

22-380-00

$29.00

Showa 16mm id Dust Wiper

Showa 16mm id Dust Wiper

22-420-00

$27.50

Showa 12mm Rebound Check Valve

Showa 12mm Rebound Check Valve

25-303-01

$44.00

Shock Seal Head Assembly 50 x 16 x 26.5

Shock Seal Head Assembly 50 x 16 x 26.5

22-522-00

$55.00

Shock Preload Collar Spanner

Shock Preload Collar Spanner

93-015-00

$28.60

Shock Oil Seal Showa/KYB 16X28X5

Shock Oil Seal Showa/KYB 16X28X5

22-401-00

$27.50

Shock Bladder 50 x 105

Shock Bladder 50 x 105

22-105-00

$38.50

Shaft Clamp - 20 24 28

Shaft Clamp - 20 24 28

93-004-02

$96.80

Shaft Clamp - 10 12 12.5 14 16 18

Shaft Clamp - 10 12 12.5 14 16 18

93-004-01

$96.80

Outer Guide Bush 47 x 15 x 2.0

Outer Guide Bush 47 x 15 x 2.0

24-510-00

$27.50

Inner Slide Bush 47 x 20 x 1.0

Inner Slide Bush 47 x 20 x 1.0

24-611-00

$27.50

Fork Spring Compressor

Fork Spring Compressor

93-008-00

$247.50

Fork Seal Driver Kit

Fork Seal Driver Kit

93-009-00

$258.50

Fork Seal & Wiper Set 47 x 58 x 10

Fork Seal & Wiper Set 47 x 58 x 10

24-870-00

$46.75

Fork Oil Seals 47mm id

Fork Oil Seals 47mm id

24-889-00

$33.00

Fork Oil Level Tool

Fork Oil Level Tool

93-002-00

$49.50

Fork Dust Wipers 47mm id

Fork Dust Wipers 47mm id

24-888-00

$30.80

Fork Bleeder Tool Set

Fork Bleeder Tool Set

93-007-00

$110.00

Bushing Driver Set

Bushing Driver Set

93-118-00

$174.90

Bump Stop Rubber 16 x 55 x 58

Bump Stop Rubber 16 x 55 x 58

22-230-00

$49.50

20-115 Motorcycle Shock Spring
RRP $218.90
19-165 Motorcycle Fork Springs
RRP $218.90

The DRZ400E is a great trail bike. It’s what the XR400 could have been, but wasn’t. It’s cheap, it’s reliable (use Silkolene Comp4 15w50 engine oil, and change it often!), and it’s a very capable enduro bike. We like the DRZ400E, and based on sales numbers, so do plenty of other Australians.
However...
The standard Showa front & rear suspension is too soft for most riders, especially the kind of rider that buys this bike. For most owners this bike will ride too low, and will hit their limits too early.

Forks
The forks are big in diameter (49mm), but poor in their valving. At plodding trail speeds, they’re OK. But push them, and they’ll be harsh, deflective, and will bottom without too much effort.
  • Fork Revalve & Service. Send us the forks & shock, plus info on your height, weight, ability, terrain, and your complaints. We will give you back the customised results from our huge settings bank and years of experience. Both ends are softly sprung too, but you can find the fork spring rate you need HERE.

    Price $
    New Fork Springs Approx $200.00

Shock
The rear end sits WAY too low, and more preload on the standard spring doesn’t fix it. Plus, the standard spring slacks out way too quick, and needs constant adjusting, and then replacing well before it should. No lifetime warranty there!
  • Showa Shock Revalve. A revalve will get rid of the harsh ride, making the damping more plush and tuned for your riding and weight. And new Shock Springs will fix ride height and bottoming problems. We offer a Lifetime Warranty on all Teknik Springs, too! Easy to fit, direct replacement, no messing around. Find the rate which would suit you best HERE.

    Price $
    New Shock Spring Approx $200.00

*Pricing based on a new or as new bike. If you need consumables, seals, bushes, bumper, shock seal, shock shaft, you need to pay for these consumable parts. The service won't cost you more as we already have the suspension apart.
Pricing does not include freight to and from our workshop. We use AusPost, TNT and Toll almost anywhere in Australia is $25-35 one way, road freight.


"Guys, As promised I have now ridden the bike a couple of times on the dirt. Bottom line is the suspension is now transformed, particularly the rear.
Way stiffer but also nice and progressive. Initially it felt a bit hard, but once I started to push on and upped the speed a bit it was perfect.

I played about with the damping settings a bit yesterday but ended up back where you had it (shouldn’t have bothered trying to improve it after all the dyno time, but I couldn’t resist!)

Not only is the ride better it’s also seems to have improved the traction on climbs, maybe that or the improved suspension meant I was more confident it attacking them? But either way I was getting up some fairly long steepish hills yesterday that I used to struggle on. Seat height is about where I had it with the lowering links etc, maybe a tad lower? Anyway it’s fine.

It doesn’t ride as smoothly on the road, feels much firmer than the original suspension (because it is!) but that isn’t what I want it for anyway so not an issue as I only ride it from where I park the car & trailer to the start of the dirt and back.

Thanks again

Steve


47mm OD

Showa USD 47mm OD


12 Clicks

Compression Adjuster 12 Clicks


12 Clicks

Rebound Adjuster 12 Clicks


25 in-lb (0.29 kgf-m)

Compression Nut Torque 25 in-lb (0.29 kgf-m)


25.0 mm

Fork Cartridge Inner Diameter 25.0 mm


47mm id x 20mm height x 1.0mm thick

Inner Bush Dimensions 47mm id x 20mm height x 1.0mm thick


47mm od x 15mm height x 2.0mm thick

Outer Bush Dimensions 47mm od x 15mm height x 2.0mm thick


0.440 kg/mm

Spring Rate - Measured 0.440 kg/mm


8 mm

Standard Preload 8 mm


0

Spring Coils Progression 0


5

Fork Oil Weight 5


350 cc

Fork Oil Level 350 cc


2 Litres

Oil Quantity 2 Litres


50mm ID

Showa 50mm ID


Yes

Shock Linkage Yes


14 Clicks

Compression Adjuster 14 Clicks


3 Turns

Compression Adjuster - High Speed 3 Turns


20 Clicks

Rebound Adjuster 20 Clicks


175 psi

Nitrogen Pressure 175 psi


5 Weight

Shock Oil 5 Weight


16 mm

Shock Shaft Outer Diameter 16 mm


12 mm

Shock Shaft Outer Diameter at Valve 12 mm


M12 x 1.25

Shock Shaft Nut Thread M12 x 1.25


#50 (1.8mm)

Shock Piston Rebound Bleed #50 (1.8mm)


10 mm

Standard Preload 10 mm


100 mm

Standard Sag 100 mm


25 ft lbs (34 NM)

Shaft Nut Torque 25 ft lbs (34 NM)


Red

OEM Spring Colour Red


267 mm

Spring Free Length 267 mm


66.5 mm

Shock Spring Large Inner Diameter 66.5 mm


63.5 mm

Shock Spring Small Inner Diameter 63.5 mm


65.4 mm

Shock Collar Large Outer Diameter 65.4 mm


63.0 mm

Shock Collar Small Outer Diameter 63.0 mm


261 mm

Spring Maximum Set Length 261 mm


224 mm

Spring Minimum Set Length 224 mm


5.50 kg/mm

Spring Rate - Measured 5.50 kg/mm