Motorcycle Suspension - What Are You Using / Where To Buy?

Discussion in 'Technical & Motorcycle Services' started by DavidFL, Oct 16, 2014.

  1. George Bell

    George Bell Member

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    I rebuilt my rear shock and forks using Racetech springs and gold valves.
    I must admit the back up was excellent and it has totally transformed my KLX .
    I wanted to build a bike tailored for the North Sumatra roads which are absolutely terrible.
    This has worked well.
    Highly recommend them.

    George
     
  2. bradmeister

    bradmeister Ol'Timer

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    George,

    quick note: Attempting to locate a spring to fit an OEM on/off road bike is extremely difficult if not problematic.

    Street, track or MX is obtainable if:


    1. The manufacturer offered several spring rates from that model year.

    2. It was an extremely popular bike, then aftermarket springs can be found.

    3. Mixing and Matching springs to non serviceable shocks is a No No.

    As we live in Thailand, Ohlins is the best deal on the planet.and we can help you find the best selection of spring rates for your Bike.

    I would be surprised if racetech offered a heavier spring rate for the D Tracker.....if they do, before you pull the trigger; determine your stock spring rate. Then find ouy what is theres.....if the math, time, money, tarrf and customs dancing is worth it......go for it.

    Let us know how that works out.

    cheers
     
  3. George Bell

    George Bell Member

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    As far as i am aware , The D tracker 250 is the same shock as the KLX 250S. Racetech offer about 8 different spring rates for the KLX / Dtracker. Although they are not cheap. You can actually buy them on Ebay. But if you go to Racetech and input your weight it will tell you the spring rate they suggest.
    Racetech.com

    Cheers.

    George
     
  4. George Bell

    George Bell Member

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    I completely rebuilt the stock KLX shock with new valving suited to my riding style and a new heavier rate spring. All supplied by Racetech. So the standard shock is serviceable . How much is your Ohlins shock going to set you back ?
     
  5. bradmeister

    bradmeister Ol'Timer

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    George,

    Thats great news!

    Can you tell our forum brothers and sisters what spring rates were available for the D-tracker? What is your wieght and what spring rate you decided to use? You mentioned a Re-valve as in a "Race Tech" gold valves or did you just add or subtract from stack?

    How was it shipped? Did it come TNT, Thai Post, or the unscrupulous big 3? What were the tarrifs and duties and how long it was from the time you ordered to the time you were able to install?

    Lastly, if this is a Nitrogen filled shock, how did you manage the purge and fill to proper pressure?

    Well done, and ride on! As far as Ohlins, It's available now, and we can easily change the springs for correct rate.

    Cheers
     
  6. George Bell

    George Bell Member

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    Guys,


    What spring rates were available for the D-tracker?
    When i asked there were many choices. but you have to contact them and they will advise what they have,
    I did a quick calc for the KLX S. using the Racetech calculator , this is the results.



      • REAR SHOCK SPRINGS
        Recommended Spring Rate: 8.1 kg/mm (use closest available)
        Stock Spring Rate: 5.6 kg/mm (stock)




      • Available SRSP 6228 Series Springs are:


      • RT SHK SPR 63.4x60.6x270 4.0kg
        SRSP 622840
        $119.99

      • RT SHK SPR 63.4x60.6x270 4.2kg
        SRSP 622842
        $119.99

      • RT SHK SPR 63.4x60.6x270 4.4kg
        SRSP 622844
        $119.99

      • RT SHK SPR 63.4x60.6x270 4.6kg
        SRSP 622846
        $119.99

      • RT SHK SPR 63.4x60.6x270 4.8kg
        SRSP 622848
        $119.99

      • RT SHK SPR 63.4x60.6x270 5.0kg
        SRSP 622850
        $119.99

      • RT SHK SPR 63.4x60.6x270 5.2kg
        SRSP 622852
        $119.99

      • RT SHK SPR 63.4x60.6x270 5.4kg
        SRSP 622854
        $119.99

      • RT SHK SPR 63.4x60.6x270 5.6kg
        SRSP 622856
        $119.99

      • RT SHK SPR 63.4x60.6x270 5.8kg
        SRSP 622858
        $119.99

      • RT SHK SPR 63.4x60.6x270 6.0kg
        SRSP 622860
        $119.99

      • RT SHK SPR 63.4x60.6x270 6.4kg
        SRSP 622864
        $119.99

    What is your weight and what spring rate you decided to use?

    I ask them to work out spring rate for rider of 120KG. As i usually have my wife on the back.

    I fitted a SRSP 622864 which has worked out really well as i am 90% road and 10% offroad.


    You mentioned a Re-valve as in a "Race Tech" gold valves or did you just add or subtract from stack?

    I fitted the gold valve 2 kit, which is completely adjustable for the future.


    How was it shipped?
    USPS


    What were the tarrifs and duties and how long it was from the time you ordered to the time you were able to install?

    I live in Indonesia and the duty here is 30% of product cost plus shipping cost (Negotiable if you go see customs in person with the door closed)

    Lastly, if this is a Nitrogen filled shock, how did you manage the purge and fill to proper pressure?

    (Racetech provide a tool for setting the pre-charge. Basically a hypodermic needle with a schrader vale on the end.

    Hope this helps you guys.
    Obviously I do not have the luxury of brands like Ohlins here, in fact i cannot even get an OEM supplier for my bike. So everything has to be done online. And the work performed myself.

    Cheers

    George
     
  7. DavidFL

    DavidFL Administrator
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    #57 DavidFL, Mar 8, 2018
    Last edited: Mar 8, 2018
    GTR - IMG_1102.

    I can't recommend BDS Performance enough for rebuilding & setting up your suspension.
    Brad at BDS is a genius & 5-star professional who will find multiple errors in your set up, linkage & then fix it all.
    GTR - IMG_1093.JPG GTR - IMG_1097.JPG
    Absolutely top notch service & full on professional advice.
    GTR - IMG_1100.

    They have a nice comfy aircon shop for you to sit & relax
    GTR - IMG_1083.JPG GTR - IMG_1086.JPG

    Check em out
    Home
     

    Attached Files:

    • Like Like x 1
  8. canthai

    canthai Ol'Timer

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    Apologies to Brad - could not get down to BKK due to family issues.
    Installed Ohlins suspension yesterday - CRF250L 2017 - FSK123 front and HO729 rear.
    Amazing difference.
    Setting the sag a major PITA - removal of subframe and airbox fixed that.
    Ohlins has a neat app for your fone - dials in the sag and compression and rebound damping.
    Will ride a couple thousand K and get 'er broken in.
     
  9. bradmeister

    bradmeister Ol'Timer

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    Canthai,

    No Worries, I'm glad you have settled the suspension needs and it meets expectations.

    The Sags are dictated by the front, often times on the CRF models....

    For many customers the 8.5n/mm single spring is just not enough for the upgrade or the Riders Weight.

    BDS Performance has the kits' to ADD a spring to the other Fork Side, to increase the spring rates and overall responsiveness and added dampening/ response.

    You can always send us your forks, as many customers are in your same predicament, and can't get to the shop or have it squated properly.

    Cheers, and Happy Trails.
     
  10. bradmeister

    bradmeister Ol'Timer

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    My Staff just found the Pictures and a Similar Kit to our own Modification Kit and Spring that works in conjunction with the Ohlins FSK123 for all the CRF250 series, that have only single springs.

    Cheers
     

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  11. canthai

    canthai Ol'Timer

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    Thanks Brad
    I found the 85 NM fork spring to be much stiffer. Nose dive on braking - even with the CB500X rotor - was much less than stock.
    The bike just feels so much more in control with the OHLINS
    Seat off to Narongs this AM to modify - again - to accommodate my fat ass !!! Get it back next week and planning a follow the Mekong trip then. Will see how she works
    By the BY - the Ohlins fone app instructed sag to be set for the rear.
     
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