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Thread: Trail Rear Shock Upgrade

  1. #1
    apriliaforum prov-nov sorin.iasi's Avatar
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    Question Trail Rear Shock Upgrade

    Hello,

    I believe I read somewhere on this forum that you can upgrade your rear shock absorber with a Tuono one. I found an Aprilia RSV Tuono 1000R 06' Rear Shock Absorber with around 100 Euro. Do you guys believe it is worthing the upgrade? Will I get better rear suspension for my Trail on street or offroad? From what I remembered, no additional modification will be required, the assy should be a perfect fit on my Trail.


    Thanks,
    Sorin

  2. #2
    apriliaforum expert fedro69's Avatar
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    Yes,
    if it's the simple version

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    it is just Plug 'n' Play plus a pair of spacer on the upper side.

    You'll go way better on road, worse off road, IMHO.

    “The road goes ever on and on, down from the door where it began,
    now far ahead the road had gone, and I must follow if I can.”

  3. #3
    apriliaforum prov-nov
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    Che fach Sorin,
    Have a look at https://www.apriliaforum.com/forums/...ail-Rear-Shock
    You'll have to pack it out with some spacers, also i'm not sure how well it will handle or if there is any problems on full load. The standard shock is great on the road, but definitely suffers off-road especially on Romanian roads, then again any bike suffers on Romanian roads






  4. #4
    apriliaforum prov-nov sorin.iasi's Avatar
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    Thanks for all the answers, this is the item I found on ebay:
    https://www.ebay.co.uk/itm/Aprilia-R...kAAOSw6VldFMgs
    I'm looking for better offroad capability; I'm not fully loading the bike and I am usually ride alone on the bike

  5. #5
    apriliaforum prov-nov
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    If it doesnt currently bottom out then i wouldnt change it, too stiff a shock and you'll have awful traction off road

  6. #6
    apriliaforum expert dobbi's Avatar
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    I would agree with fedro and llamamoo. I would not expect a shock for a heavy road bike to be any good on a trail bike for off road puposes.

    I do quite a bit of green laning on my trail and all is standard. I would imagine that my rear shock is pretty worn now after allmost 100k km, but it seems to do a reasonable job so i wouldn't consider changing it. even when on a big trip going off road, it seems ok but I do keep speeds low as bottoming out is easy to do.
    “If it looks like a duck, and quacks like a duck, we have at least to consider the possibility that we have a small aquatic bird of the family anatidae on our hands.” Douglas Adams

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    The advantage you have Dobbi is you're only about 7 stone dripping wet!


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  8. #8
    apriliaforum Member
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    I've done this on my trail. It does fit right in, the top mount is a little slimmer so you'll need to pack it out with a couple of washers.

    I found my original shock bottoming out on a trip to Scotland with a bit of luggage on hence the change. I haven't tried it off road yet but it has improved the handling on road although it does seem a bit harsh. Still playing with the damping adjustments but did wonder whether it might have been worth me keeping the original shock and swapping the spring. The Spring on the Tuono shock can be easily removed, I would have had to destroy the original shock to get the spring off but it was knackered anyway. Doing this might be the ideal compromise.


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  9. #9
    apriliaforum expert fedro69's Avatar
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    You don't have to destroy anything to get the original dumper disassembled,
    but I mean the spring won't fit on the Tuono piece:
    he's broader than the Trail original.

    “The road goes ever on and on, down from the door where it began,
    now far ahead the road had gone, and I must follow if I can.”

  10. #10
    apriliaforum prov-nov Heath12's Avatar
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    These fit on the Strada too don't they? Can't remember if anybody has tried. Would think it would be a better match as a road bike if they do. May consider one in the future if so. Would think firmer fork springs would be more of a priority though before looking at the rear.

  11. #11
    apriliaforum expert fedro69's Avatar
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    Yes:
    In the last roundabout 45k km he did a very good work on my Strada
    ...
    for the fork:
    You'll need more something like these

    Click image for larger version. 

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    and maybe a slightly differente fork setting than harder springs

    “The road goes ever on and on, down from the door where it began,
    now far ahead the road had gone, and I must follow if I can.”

  12. #12
    apriliaforum prov-nov Heath12's Avatar
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    Hi fedro69,
    Is that the plans for spacers to increase preload or something to do with damping? Do you use them?
    Thanks
    Last edited by Heath12; 08-01-2019 at 12:56 PM. Reason: Spelling mistake

  13. #13
    apriliaforum expert fedro69's Avatar
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    Nope:
    is a flow regulator, we call it "konitec", to put between the spring and the piston.
    Let the fork work from first mm on and not waste the first 3 cm travel.
    not more, not less than that.
    To regulate the preload I use the adjuster from a Guzzi Breva/Norge 850:
    another Plug'n'Play modification I've worked out.
    With the regulators they are as good as the Matris-Kit, but way cheeper

    “The road goes ever on and on, down from the door where it began,
    now far ahead the road had gone, and I must follow if I can.”

  14. #14
    apriliaforum prov-nov Heath12's Avatar
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    Wow. Looks like you have put a lot of thought, time and effort into this! I was thinking of something straightforward like uprated fork springs and maybe thicker fork oil possibly in the future or just a spacer to firm it up.

  15. #15
    apriliaforum expert fedro69's Avatar
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    o well ... yes!
    The point is the weak dumping, not the springs:
    they just accumulate energy in compression and bring it back on release,
    so that harder springs will only means a jumping fork by constant (un)dumping.
    More oil will meaning that the air compression grown faster:
    same thing like the springs
    and an heavier oil will just stuck more bevor working, but then will make no difference:
    the compression holes are two 8 mm, the "exit" on the pistons head is a 16 mm hole:
    4 time bigger!
    It won't be no pression there ... no dumping.
    Last edited by fedro69; 08-02-2019 at 12:43 AM.

    “The road goes ever on and on, down from the door where it began,
    now far ahead the road had gone, and I must follow if I can.”

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