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Thread: 2017 RF shock linkage

  1. #121
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    I have used the new plates at track and bike handles great. I actually raised (front and rear) the bike slightly more even for better performance. Suspension setup is different for every rider (based on riding style, etc), one size does not fit all. Therefore, you need to understand suspension setup and work on finding correct settings.

    I have a 2016.5 RF ohlins rear shock (AP 9360) installed on my bike.
    Which bike does the AP 363 come on? How is that shock valving different than AP 360?
    Last edited by 99cobra; 12-31-2017 at 04:27 PM.

  2. #122
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    Quote Originally Posted by a_f View Post
    Absolutely true. Tested the Forsaken link on my 12 aprc and found that it required quite a different spring rate, and also a revision of hydraulics (btw, the forsaken plates look similar to the 17 red plates); without these changes, the package was worsening the performance; I finally reverted to the standard configuration.

    It is not fire-and-forget stuff, you are changing many parameters in one go and the response curve is going to be totally different; if tracking the machine, you also risk to lose all your database...be careful with these items!
    We use this linkage setup for Le Mans which is a twisty circuit where you need an agile bike, however the rear rise is significant so you need to raise the whole bike, a high bike gives more agility in turn-in but is more nervous at high speed, also a high bike increases the wheelie, but for this we use the long swing arm.

    here are thé Öhlins riser caps FC001 to raise the front
    Click image for larger version. 

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    Previous bikes : AR50 - AR80 - CB250N - RD350LC - RGV250 - VT400 - TDR250 - VIRAGO 535 - RF600 - RF900 - CBR600 - GSXR750 - TL1000R - T160 TRIUMPH - R1 - PIAGGIO - R6 - RC30 - 916SPS - VFR800 - 675 DAYTONA - CBR600RR - TL1000R - YZF750 - RSV4 FACTORY.

  3. #123
    apriliaforum Junkie prettykin's Avatar
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    Quote Originally Posted by 99cobra View Post
    I have used the new plates at track and bike handles great. I actually raised (front and rear) the bike slightly more even for better performance. Suspension setup is different for every rider (based on riding style, etc), one size does not fit all. Therefore, you need to understand suspension setup and work on finding correct settings.

    I have a 2016.5 RF ohlins rear shock (AP 9360) installed on my bike.
    Which bike does the AP 363 come on? How is that shock valving different than AP 9360?
    The AP 363 shock valving is identical to the valving in the AP 3201 which is the TTX RT version that comes on the 2017 RF model with red Linkage plates. Mike from Dan Kyle compared the valving specs to my AP 360 and they are significantly different. Especially on the rebound circuit. Mike also mentioned raising the front would to complement the rear would further help with handling.

  4. #124
    apriliaforum Member crotchrocket.tv's Avatar
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    Put a TTX GP with a 100 spring on the rear of my 2016.5 RF. Still was not happy with the feel so I changed to the 2017 linkage plates. The overall feel of the rear is much better, but now I have too much spring. So if anybody has a 21040-29/90 to sell, please let me know.

    Last edited by crotchrocket.tv; 01-02-2018 at 03:33 PM.
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  5. #125
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    Quote Originally Posted by crotchrocket.tv View Post
    Put a TTX GP with a 100 spring on the rear of my 2016.5 RF. Still was not happy with the feel so I changed to the 2017 linkage plates. The overall feel of the rear is much better, but now I have too much spring. So if anybody has a 21040-29/90 to sell, please let me know.

    I have a .95 if you want?


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  6. #126
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    Hi all,
    I have RSV4 RR 2017 with OEM Sachs and OEM linkeage. I'm thinking about rear Ohlins from RSV4 RF 2016.5 AP9331 with 0.95 spring rate. Can I use this combination of absorber and spring rate for RR 17 or not? With OEM RR17 linkeage or with AF1 recomended linkeage https://www.af1racing.com/store/scri...dProduct=87263 ? I am 185 lbs without gear.

  7. #127
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    Quote Originally Posted by vale46kart View Post
    Hi all,
    I have RSV4 RR 2017 with OEM Sachs and OEM linkeage. I'm thinking about rear Ohlins from RSV4 RF 2016.5 AP9331 with 0.95 spring rate. Can I use this combination of absorber and spring rate for RR 17 or not? With OEM RR17 linkeage or with AF1 recomended linkeage https://www.af1racing.com/store/scri...dProduct=87263 ? I am 185 lbs without gear.
    You should probably read this entire thread.


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  8. #128
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    Quote Originally Posted by prettykin View Post
    After struggling to setup my '17 RR Ohlins suspension with the help of Mike Wheeler of Dan Kyle we decided to swap the linkage to the '17 RF plates as well as re-valving my AP 360 shock to AP 363 specs. I'm close to 205 lbs in gear so Mike installed a .95N/mm spring which seems to be a good compromise for street/canyon and track day riding. First impressions are the linkage raises the rear significantly, I'm also able to get proper sag numbers. The bike transitions much better side to side and doesn't squat during corner exit. All in All this setup is a huge improvement over the stock '17 RR setup in my opinion.
    Based on this data, i would suggest, finding out if that the 2016.5 RSV RF ohlins shock (AP 9360) can be re-valved to 2017 RSV RF ohlins TTX AP 3201 (AP 363) specs. I have used the 2017 Linkage plates and am very happy with results.
    Last edited by 99cobra; 01-17-2018 at 10:46 PM.

  9. #129
    apriliaforum Junkie prettykin's Avatar
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    Quote Originally Posted by 99cobra View Post
    Based on this data, i would suggest, finding out if that the 2016.5 RSV RF ohlins shock (AP 9360) can be re-valved to 2017 RSV RF ohlins TTX AP 3201 (AP 363) specs. I have used the 2017 Linkage plates and am very happy with results.
    I suggest giving Mike @ kyle racing a call. He revalved my TTX AP 360 to TTX AP 363 specs. The TTX AP 3201 is pretty much the same spec as the AP 363 shock. The main difference being the 3201 is a lower cost RT model that comes from the OEM and without a pneumatic preload adjuster. Both are meant to be used with the RF linkage plates.

  10. #130
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    Hi All,

    2016 VS 2017 Link (Both Shocks at 315mm in length)

    2016 has 14.6% progression with a start ratio of 2.24:1 at zero travel and 2.09:1 at 100mm of travel at the wheel. Front castor 25.1
    2017 has 10.6% progression with a start ratio of 1.90:1 at zero travel and 1.80:1 at 100mm of travel at the wheel. Front castor 24.7




    What does this mean?

    The 2017 reacts faster at the shock for every mm at the wheel compared to the old one (Increase in wheel rate) . What Aprilia is trying to achieve with this is to maintain the castor angle of the forks mid corner to exit. Mid to exit you have a weight transfer front to rear. They are reducing some of that transfer to keep weight over the front to keep it turning. Further the reduction in progression to 10.6% will be felt as an improvement over bumps when the rear suspension has high load because its less progressive!

    The Ohlin's damping changes reflect the change in link ratio.

    Hope this helps to clarify
    Last edited by Shockman; 09-07-2018 at 01:48 AM.

  11. #131
    apriliaforum expert vfr1200's Avatar
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    2.24 to 2.09 is 6.7% change.
    Maybe I am misunderstanding.
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  12. #132
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    Quote Originally Posted by vfr1200 View Post
    2.24 to 2.09 is 6.7% change.
    Maybe I am misunderstanding.
    1.09


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  13. #133
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    Thanks Shockman for providing the facts. From what I see and hear through the grapevine, the new geometry is better for street/sport riding, but for serious track/racing, the old linkage is still preferred. How does that relate to the numbers?

  14. #134
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    Quote Originally Posted by GJB View Post
    Thanks Shockman for providing the facts. From what I see and hear through the grapevine, the new geometry is better for street/sport riding, but for serious track/racing, the old linkage is still preferred. How does that relate to the numbers?
    That's not what I heard. I heard the new setup is faster.
    Hell, Aprilia claims a whole 1 second dropped off their test track times.


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  15. #135
    apriliaforum Junkie prettykin's Avatar
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    Quote Originally Posted by Shockman View Post
    Hi All,

    2016 VS 2017 Link (Both Shocks at 315mm in length)

    2016 has 14.6% progression with a start ratio of 2.24:1 at zero travel and 2.09:1 at 100mm of travel at the wheel. Front castor 25.1
    2017 has 10.6% progression with a start ratio of 1.90:1 at zero travel and 1.80:1 at 100mm of travel at the wheel. Front castor 24.7




    What does this mean?

    The 2017 reacts faster at the shock for every mm at the wheel compared to the old one (Increase in wheel rate) . What Aprilia is trying to achieve with this is to maintain the castor angle of the forks mid corner to exit. Mid to exit you have a weight transfer front to rear. They are reducing some of that transfer to keep weight over the front to keep it turning. Further the reduction in progression to 10.6% will be felt as an improvement over bumps when the rear suspension has high load because its less progressive!

    The Ohlin's damping changes reflect the change in link ratio.

    Hope this helps to clarify
    This is exactly what I felt when I switched from the '17 RR linkage to the '17 RF linkage. With the RR linkage I experienced terrible understeer and no front end feel during the mid to corner exit. with the RF Linkage the bike is much more stable mid corner and front end feel is very good and steers to the apex with ease. That said were able to determine how much the RF link raises the Rear seat height. I've lost quite a bit of straight line brake stability after the change

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