KTM & Husaberg 4 Stroke Services

>>Download a Service Order form – click here<<
Suspension Services:
KTM 250, 400, 450, 520, 525 RFS, EXC, MXC, XC, XC-W,SX ’00-07
KTM 250, 350, 400, 450,500, 505, 530 SXF, XCF, XCF-W, XCR-W, EXC-R ’08-‘12
Husaberg 390, 450, 570 FE, FX ’09-’12
NOTICE: We are receiving more suspension work and request for suspension services than we can accommodate. We are not accepting any appointments at this time.
Standard Fork Re-Valve
$399 – ALL models with open chamber fork
KTM 250,400,450,520,525RFS EXC/MXC/XC/XC-W/SX ’00-07
KTM 250,400,450,500,530, XCF-W/XCR-W/EXC-R ’08-‘12
Husaberg 390,450,570 ’09-’10
Standard re-valve NOT AVAILABLE for closed chamber bladder forks (’07 SX, SXF,’08 – ’12 XC, SX, SXF)
The WP open chamber fork has very stiff high speed compression valving and incorrect spring rates for many riders. This creates harsh and deflective (bouncing off the chosen line) action when riding on the rocks, roots, and square edged bumps, insufficient bottoming resistance on the big hits, vague steering and tracking, head shake, and overall instability. After reviewing your service order form and consulting with you, the internal damping circuits will be re-designed, spring rates may be changed, and oil levels adjusted to match your weight, skill level, age, riding style, (sitting vs standing) and type of terrain encountered. When matched with a Slavens shock re-valve, your bike will have precise steering, will be more comfortable, confidence inspiring, safer, and will track straight in all conditions.
(Add $70 to the re-valve price to include oil seals & labor to change the seals. Only high quality SKF forks seals are used. We’ve tested all of the cheaper brands and they don’t compare.)
Re-valve includes:
- Valving shims
- Cartridge fork fluid
- Clean and inspect all parts
- Labor
- 60 day warranty
- Unlimited phone support
- Re-work if needed
Does not include springs, seals, bushings, or other worn/damaged parts.
Shock Sox are recommended for all models, applications, and conditions. On ’08 – ’13 models the fork guard guide ring must be removed for correct fitment
The Next Level Fork Re-Valve
$499 – ALL models with open chamber fork
KTM 250,400,450,520,525RFS EXC/MXC/XC/XC-W/SX ’00-07
KTM 250,400,450,500,530, XCF-W/XCR-W/EXC-R ’08-‘13
Husaberg 390,450,570 ’09-’10
Highly recommended for all 2007 – 2013 models.
The Next Level is for those that want the best. Because of time and expense constraints this service has only been offered to a few customers in the past, but now CNC water jet machining technology makes this affordable to the masses. The Next Level Re-Valve, with its Slavens designed High Flow Passive Valve Pistons, makes the fork action much more compliant and responsive when riding on rocks and roots yet increases firmness for G-outs and big hits.
(Add $70 to the re-valve price to include oil seals & labor to change the seals. Only high quality SKF forks seals are used.
The Next Level Re-Valve includes everything that is in the Standard Fork Re-Valve plus:
- Next Level High Flow Passive Valve Pistons
- Additional hand machining to valving parts
Does not include springs, seals, bushings, or other worn/damaged parts.
Shock Sox are recommended for all models, applications, and conditions. On ’08 – ’12 models the fork guard guide ring must be removed for correct clearance.
The Next Level Fork Re-valve and Pressure Balance System (PBS)
$629 – All models with closed chamber bladder fork only
’07 SX,SXF ’08 – ’13 XC,SX,SXF
’11 – ’12 Husaberg 390-570
Besides the usual harshness, deflection, and spring rate issues, the WP closed chamber bladder fork has a pressure build-up issue that is very labor intensive to correct. This service is HIGHLY RECOMMENDED for ALL applications, especially when competing in events that require non-stop riding for 2-3 hour periods. Under these conditions increased stiffness and deflection will be experienced from pressure build-up in the inner cartridge and outer chamber and in extreme cases and conditions the fork becomes rigid and un-rideable. Manual bleeding of the air from the outer chamber does NOT cure the problem. This service is only available at Slavens Racing. Developed by Jeff Slavens and Kelvin Thomas and race tested by Team KTM/RPM WORCS rider Kyle Summers.
This service includes everything that is in the Standard Re-Valve plus:
- Next Level High Flow Passive Valve Pistons
- Proprietary cartridge, stanchion tube, and HL ring machining to reduce pressure balance issues
- SKF triple lip fork seals (rebuild included)
- Vaccuum bleed cartridge with WP/KTM vaccuum bleeding machine.
Does not include springs, bushings, or other worn/damaged parts.
Shock Sox recommended for all models, applications, and conditions. On ’08 - ’12 models the fork guard guide ring must be removed for correct fitment.
Fork Seal Change & Re-build
$265 – All models (except below)
$295 – ’07 SX, SXF & ’08 - ’12 XC, SX, SXF, ’11 – ’12 Husaberg ALL
Our rebuilds go far beyond what you get at most dealerships or suspension shops where they just throw in a set of seals. A correct rebuild involves a very thorough cleaning of all internals (the shim stacks, valving pistons and other parts are often full of sludge), inspection, and repair/replacement of all internal wear items. (bushings, rebound check valve shims, o-rings, stuck rebound needles, etc.) Closed cartridge forks are vacuum bled with our WP/KTM vacuum bleeding machine.
Re-build price includes:
- SKF oil & dust seals
- Disassemble
- Clean, inspect, repair, service all internals
- Polish fork tubes & damper rods
- Labor
- Replace worn parts
- Re-assemble w/quality cartridge fluid
- Vacuum bleed cartridge with WP/KTM vacuum bleeding machine (closed chamber forks only)
- Update valving if previously re-valved by Slavens Racing (valving parts not included)
- 60 day warranty (Shock Sox must be installed)
Does not include bushings, or other worn/damaged parts.
Shock Sox are recommended for all models, applications, and conditions. On ’08 - ’12 models the fork guard guide ring must be removed for correct fitment.
Standard Shock Re-Valve
$299 – All PDS MODELS ’98-’13, All linkage models ’11 – ’13, All Husaberg ’09-’13
The WP shock suffers from harsh high speed compression valving, insufficient rebound valving and soft spring rates. This creates poor straight line stability and cornering, kicking, low ride height, and insufficient bottoming resistance. The spring rate needs to be adjusted for most riders and the internal valving settings should be corrected. After reviewing your service order form and consulting with you, the internal damping circuits will be re-designed and spring rates will be changed to match your weight, skill level, age, riding style, (sitting vs standing) and type of terrain encountered. Note: Progressive rate shock springs are used for all off-road applications with PDS linkless system (straight rate springs are used for linkage models) and ALL shocks are bled with a WP Factory vacuum/pressure bleeding machine.
NOTE: The ’11-’13 linkage models squat too much in the rear and this compromises overall balance and steering precision. This is quite easily resolved in our standard and next level valving.
(Add $29 – $60 to the re-valve price to include oil seals & labor to change the seals.)
Standard Re-valve includes:
- Valving parts
- Nitrogen
- Shock fluid
- Labor
- Bleed fluid with WP/KTM Factory vacuum/pressure bleeding machine
- 60 day warranty
- Re-work if needed
- Unlimited phone support
Does not include springs, seals, or bushings.
Next Level Shock Re-valve
$439 – All KTM PDS models ’06-’09, All Husaberg ’09 $419 – All ’10-’13 KTM & Husaberg PDS models
The Next Level shock re-valve gives additional plushness and increased bottoming resistance. Overall it has a firmer feel than our standard re-valve but is actually more responsive and more plush on the small trail trash , rocks, and roots yet has considerably more bottoming resistance and rebound control that absorbs whoops and G-outs. This is accomplished by installing our proprietary anti-bottoming needle and modifications to the valving pistons and Dual Compression Control (DCC) adjuster.
Next Level shock re-valve includes everything that comes with the standard re-valve plus:
- KT needle for increased bottoming resistance
- Valving piston mods for increased plushness
- Dual Compression Control (DCC) mods for increased plushness
- Hand made rebound shims for improved response
Does not include springs, seals, or bushings.
Shock Re-Build
$225 – $275 – ALL KTM/Hsbg MODELS ’98 – ’13
WP PDS shocks are the most complicated brand to rebuild correctly. Most shops overlook many wear areas that effect maximum performance and they leave the shock fluid full of air by attempting to bleed the system without proper equipment. This makes the damping performance inconsistent and quick to fade. At Slavens Racing ALL shocks are bled with a WP/KTM vacuum/pressure bleeding machine to insure correct and consistent performance.
Rebuild includes:
- Disassemble
- Shaft oil seal or sealhead assembly (sealhead,bushing, oil & dust seal)
- Shock fluid
- Nitrogen
- Clean & inspect all parts
- Replace other worn parts (parts not included)
- Re-assemble & re-charge with nitrogen
- Bleed fluid with WP/KTM vacuum/pressure bleeding machine
Fork or Shock Height/Travel Reduction
Please call or email info@slavensracing.com for pricing
Many KTMs and Husabergs are tall for the average rider and can be overwhelming for riders with inseams of 30 inches or less. Reducing the ride height 1 to 2 inches makes it much easier to navigate technical sections, reduces low speed tip-overs, and greatly increases rider confidence. The travel reduction modification involves the installation of travel limiting spacers, (so that the fork or shock shaft extends to a reduced position) installing shorter fork springs (except ’07 SX,SXF and ’08-’13 SX, SXF, XC), and re-valving to match the reduced travel, your weight, skill level, and your riding conditions.
The travel reduction can be reversed back to full travel for approximately half of the original cost. Travel reduction is recommended for trail riding, enduros and motard. It is NOT offered or recommended for motocross or high speed desert applications.






