Author Hyperprpo fork springs install, advice needed.  (Read 2838 times)

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  • Offline Dabbers

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    Hyperprpo fork springs install, advice needed.
    on: Oct 05, 2021, 07.43 pm
    Oct 05, 2021, 07.43 pm
    I'm about to change my springs and wondered if there are any issues to look out for when removing the pre-load/rebound cap? I've read the rebound adjustment needs to be checked prior to re-installing the fork legs as it is easy to get it out of adjustment....ie: you can end up with too many/not enough 'clicks' on the adjuster screw.

    Much appreciate any advice prior to fitting as I've no issues other than this being a potential problem.
    Last Edit: Oct 05, 2021, 07.44 pm by Dabbers

  • Offline __Ray__   nl

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    Re: Hyperprpo fork springs install, advice needed.
    Reply #1 on: Oct 05, 2021, 09.48 pm
    Oct 05, 2021, 09.48 pm
    Set the preload on low to lower the presure and loosen the cap before you take the forks out, then they're still fixed and you don't need a vice with the risk of damage.

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    Re: Hyperprpo fork springs install, advice needed.
    Reply #2 on: Oct 06, 2021, 10.02 am
    Oct 06, 2021, 10.02 am
    If you can, don't use the oil given in the kit, it's too hard...

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    Re: Hyperprpo fork springs install, advice needed.
    Reply #3 on: Oct 06, 2021, 04.54 pm
    Oct 06, 2021, 04.54 pm
    Hi Pehun,
    It is 15w oil that comes in the kit, Are you saying to use 10w?

    Dabbers, Make sure you loosen the cap slightly as per the instructions before you loosen the triple clamps, as you won't be able to later. It is no drama to loosen the cap then, the tricky bit is to get in at the nut that is behind the plastic spacer, that allows the cap assembly to come off the damper rod part. It shows a special tool, but you can get around it.
    Tom

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    Re: Hyperprpo fork springs install, advice needed.
    Reply #4 on: Oct 06, 2021, 06.31 pm
    Oct 06, 2021, 06.31 pm
    Hi all,

    Thanks for the replies, I've not got any issues with taking the forks apart as I've done it dozens of times on the Blackbird. My only concern was I'd watched a video where it stated the rebound adjuster could quite easily go out of adjustment on removal, obviously there isn't rebound adjustment on the Blackbird so I've not encountered this potential issue. Reference the fork oil suppied in the spring kit, I asked specifically what weight it would be and was told it would be 5WT....what turned up was 15WT. I mentioned to the guy all Calsport that I'd just replaced the oil with 5WT and found the forks more compliant/softer over bumps, I'm now waiting a reply as to what he suggests as he was aware of my recent change to the lighter oil. I think going to 15WT (irrespective of spring type) is going to be too much although he I've no idea on the CST rating for Hyperpro oil so I might be wrong.
    Last Edit: Oct 06, 2021, 06.33 pm by Dabbers

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    Re: Hyperprpo fork springs install, advice needed.
    Reply #5 on: Oct 06, 2021, 06.35 pm
    Oct 06, 2021, 06.35 pm
    *Originally Posted by pehun [+]
    If you can, don't use the oil given in the kit, it's too hard...

    I've recently put 5WT Motul in the forks so might try the Hyperpro springs with this, I'm fairly sure that 15WT might offer too much damping.

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    Re: Hyperprpo fork springs install, advice needed.
    Reply #6 on: Oct 07, 2021, 04.48 am
    Oct 07, 2021, 04.48 am
    I user the 15 that came with the kit and he handles great.

  • Offline pehun   fr

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    Re: Hyperprpo fork springs install, advice needed.
    Reply #7 on: Oct 07, 2021, 08.15 am
    Oct 07, 2021, 08.15 am
    *Originally Posted by thetrecker [+]
    Hi Pehun,
    It is 15w oil that comes in the kit, Are you saying to use 10w?

    Dabbers, Make sure you loosen the cap slightly as per the instructions before you loosen the triple clamps, as you won't be able to later. It is no drama to loosen the cap then, the tricky bit is to get in at the nut that is behind the plastic spacer, that allows the cap assembly to come off the damper rod part. It shows a special tool, but you can get around it.
    Tom
    One of my friends installed the springs with a 50/50 mix of 15+10 oil and said it was great.
    With the original 15, it's hard so you are forced to set the rebound to the less hard setting...

    In all the ways, handle is great, but to hard for me
    :)

     



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