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  DDS CLOSED CARTRIDGE DAMPING SYSTEM

The K-Tech DDS cartridge kits are adjustable by the following 
external adjusters.

SETTING THE FORK

When the fork is fitted to the bike there is some basic geometry you 
should check with the preload adjustment, to do this you need to sup-
port your bike so the front wheel is lifted off the ground.

To set the preload on your forks you need a 14mm socket or 
spanner, preload is very important as it effects the attitude of the motor-
cycle and the angle of the forks.
To check the preload on your forks support the motorcycle on a stand 
so the front wheel is fully off the ground, make sure the fork is fully 
extended by pushing down on the wheel and measure the amount of 
chrome tube there is extending from below the seal to the axle bracket 
at the bottom of the fork. Make a note of this. (A)

Take the bike off of the stand and push down on the handlebars a few 
times allowing the bike to settle. Measure the same points as before 
and make a note of it. (B)

Subtract the second measurement -See Fig (B) from the first 
measurement - See Fig (A), this measurement should be between 
25-35mm. If you do not have this measurement you need to adjust the 
preload with the 14mm hex on the top cap until you achieve this figure.

A

B

Summary of Contents for DDS APRILIA RSV4

Page 1: ...APRILIA RSV4 155 011 010 025 21 06 2017 ISSUE 1 OWNER S MANUAL ...

Page 2: ...signed tested and manufactured RECOMMENDED SETTINGS Fork stroke Preload Air gap Fork oil Spring rate Comp damping L H leg Reb damping R H leg Fork position RECOMMENDED SETTINGS DDS CLOSED CARTRIDGE DAMPING SYSTEM Page 2 Page 3 Page 4 Page 5 Page 6 10 Page 11 Recomended Settings Introduction Adjustment Setting the fork Changing the fork springs Service Notes 125mm 8 10mm 190mm 5wt 10N 16 Clicks out...

Page 3: ...and one leg for re bound damping making each circuit independent for adjustment These procedures should only be carried out by a qualified motorcycle tech nician K Tech Suspension Ltd will not be liable for any damages caused in any way to by the product and any injuries sustained if the product is fitted by someone who is neither an authorised dealer of K Tech Suspension Ltd or have the relevant ...

Page 4: ...equals 1mm of preload on spring Spring preload should be set from the fully open anti clockwise position Compression Damping 3mm allen key in centre of the BLACK LEFT hand fork cap Adjustment range is 30 clicks All settings should be made from fully closed clockwise position Rebound Damping 3mm allen key in centre of the NATURAL RIGHT hand fork cap Adjustment range is 30 clicks All settings should...

Page 5: ... a stand so the front wheel is fully off the ground make sure the fork is fully extended by pushing down on the wheel and measure the amount of chrome tube there is extending from below the seal to the axle bracket at the bottom of the fork Make a note of this A Take the bike off of the stand and push down on the handlebars a few times allowing the bike to settle Measure the same points as before ...

Page 6: ...osen the clamping screws in the up per clamp With the bike supported under the bottom fork clamp unscrew both fork caps with either the spanner provided or a top cap socket Tool No 113 020 000 With one person on each handle bar remove the stand from under the bottom fork clamp and slowly lower the bike 3 2 Before performing step 3 please make sure the persons holding the handle bars are strong and...

Page 7: ...l No 113 010 020 4 Remove the nylon spring pusher and the main spring slowly keeping as much oil in the fork leg as possible 5 If a large amount of oil has been lost removing the spring it is nec essary to check the oil level To do this you will need to remove the spring preload spacer from under the main spring using a wire hook 6 CHANGING THE FORK SPRINGS ...

Page 8: ...5 screw this onto the piston rod joiner 9 CHANGING THE FORK SPRINGS 2 3 2 4 B A 5 6 DRAWN CHK D APPV D MFG Q A UNLESS OTHERWISE SPECIFIED DIMENSIONS ARE IN MILLIMETERS SURFACE FINISH TOLERANCES LINEAR ANGULAR FINISH DEBUR AND BREAK SHARP EDGES NAME SIGNATURE DATE MATERIAL DO NOT SCALE DRAWING REVISION TITLE DWG NO SCALE 1 20 SHEET 1 OF 1 A4 C WEIGHT 13 put spring and stuff back in 3 2 4 B A 5 6 C ...

Page 9: ...EVISION TITLE DWG NO SCALE 1 20 SHEET 1 OF 1 A4 C WEIGHT 13 put spring and stuff back in 2 3 2 4 B A 5 6 DRAWN CHK D APPV D MFG Q A UNLESS OTHERWISE SPECIFIED DIMENSIONS ARE IN MILLIMETERS SURFACE FINISH TOLERANCES LINEAR ANGULAR FINISH DEBUR AND BREAK SHARP EDGES NAME SIGNATURE DATE MATERIAL DO NOT SCALE DRAWING REVISION TITLE DWG NO SCALE 1 20 SHEET 1 OF 1 A4 C WEIGHT 13 put spring and stuff bac...

Page 10: ... adjust preload and damping settings to previous or recommended settings Located at the front of document 14 K Tech Suspension Ltd recommend that this product is serviced every 20 hours of use It is very important that this product is serviced by an authorised dealer as there are special tools required to guarantee correct performance of this product K Tech Suspension Ltd cannot be held responsibl...

Page 11: ...11 DDS CLOSED CARTRIDGE DAMPING SYSTEM NOTES ...

Page 12: ...Contact your local K Tech dealer for more details at www ktechsuspension com service centres and partners Copyright K Tech Suspension Ltd 2017 www ktechsuspension com ...

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