Multitrac Suspension data curves- Mtbr.com
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  1. #1
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    Multitrac Suspension data curves

    Iíve been looking at rear suspension upgrades for my 2018 Rift Zone and in my research Iíve come across some of the leverage curves for other bikes. It got me interested in seeing the curves for the Marin line.

    Was wondering if anyone has come across this data for the Multitrac designs?


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  2. #2
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    Marin used to put the graphs in their videos.


    They also had this sweet display of their suspension platforms:
    https://www.youtube.com/watch?v=TRe9V5SchxI

  3. #3
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    Multitrac Suspension data curves

    Skeeno, thanks for the video. Been trying to find something more recent but no luck.

    Basically after deep diving some suspension research Iíve found some write ups saying Multitrac is a progressive system as opposed to a linear one and I wanted to get some numbers / data to figure out if I want to move forward with a better air shock or coil setup.

  4. #4
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    Quote Originally Posted by Scuba.Steve View Post
    Skeeno, thanks for the video. Been trying to find something more recent but no luck.

    Basically after deep diving some suspension research Iíve found some write ups saying Multitrac is a progressive system as opposed to a linear one and I wanted to get some numbers / data to figure out if I want to move forward with a better air shock or coil setup.


    Here you go man.

    I modeled my 2018 RZ in Linkage using a blend of mfg geometry data and actual measurements I have taken of relationships of the pivot positions and linkage. I think this is very accurate:

    Multitrac Suspension data curves-2018-rz1-leverage.jpg

  5. #5
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    Quote Originally Posted by CCS86 View Post
    Here you go man.

    I modeled my 2018 RZ in Linkage using a blend of mfg geometry data and actual measurements I have taken of relationships of the pivot positions and linkage. I think this is very accurate:

    Click image for larger version. 

Name:	2018-RZ1-Leverage.jpg 
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ID:	1308229

    Thank you so much! Itís been a while since Iíve logged into this site and this popped up for me.

    Greatly appreciate it!


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  6. #6
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    Multitrac Suspension data curves

    Solid timing in this article from Vital.

    They compared the newer Rift Zone Carbon with some other short travel trail bikes and in doing so also did the rear suspension data curves along with some great data points.

    Even with the newer model being 125mm rear travel it looks like CSís data curve was right on point.

    Vital MTB Test Sessions: Five Slack, Short-Travel 29er Mountain Bikes Reviewed

    Their is a video towards the bottom that compares all of the rear suspension leverage curves but here is a screen shot of the Rift Zone.



    And the comparison curves with the other bikes.






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  7. #7
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    Quote Originally Posted by Scuba.Steve View Post
    Solid timing in this article from Vital.


    Very cool, thanks for the link.

    Their leverage curve has essentially the same shape as mine, just a slight shift. I'm guessing that is a 2020, so 2 model years newer and carbon to bat. Probably a good chance of tweaked geometry vs my 2018.

    I've got the 2018 at ~36% progressivity. Glad for it too. At ~156lbs, 30% preload on my RS Super Deluxe, and maxed out on volume tokens, I still use essentially all the travel.

  8. #8
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    Quote Originally Posted by CCS86 View Post
    Very cool, thanks for the link.

    Their leverage curve has essentially the same shape as mine, just a slight shift. I'm guessing that is a 2020, so 2 model years newer and carbon to bat. Probably a good chance of tweaked geometry vs my 2018.

    I've got the 2018 at ~36% progressivity. Glad for it too. At ~156lbs, 30% preload on my RS Super Deluxe, and maxed out on volume tokens, I still use essentially all the travel.
    Yea itís the 2020 Carbon model and Marin cites it at 125mm travel so itís going to be a little bit different.

    Iím stoked to get your chart though since Iím also on a 2018 and it gives me an idea of what I want to do moving forward with an upgrade in the rear.




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  9. #9
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    I decided to make a visual comparison of the 2018 to 2020 geometry. Pretty cool I think:




    Fullsize: https://i.imgur.com/8lMAfUv.gif



    I think that adding a 2* angle headset and a slightly longer fork would get you most of the way to 2020 geometry.
    Last edited by CCS86; 02-27-2020 at 07:00 AM.

  10. #10
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    When I upgraded my 2018 RZ2 I was actually on track with where Marin was taking the current bike.

    I went with

    -140mm Pike Fork (didnt go with angled headsets but I have yet to have complaints when riding)

    -4 piston Guide RSC brakes with 180mm rotors front / rear

    -GX eagle drive train

    Im hoping to upgrade the rear shock at some point and gather all this info has been a huge help.

  11. #11
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    Just found this info on the 2020 bikes.

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  12. #12
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    Quote Originally Posted by Scuba.Steve View Post
    When I upgraded my 2018 RZ2 I was actually on track with where Marin was taking the current bike.

    I went with

    -140mm Pike Fork (didnt go with angled headsets but I have yet to have complaints when riding)

    -4 piston Guide RSC brakes with 180mm rotors front / rear

    -GX eagle drive train

    Im hoping to upgrade the rear shock at some point and gather all this info has been a huge help.


    My upgrades so far:

    • '19 Pike RCT3 Fork @ 140mm, burnished bushings, Push low-friction seals
    • Works 2* Angle Headset
    • Manitou Mara Pro Shock
    • Bontrager Line Comp 30 29" wheelset
    • Shimano XT 11-speed drivetrain
    • Shimano XTR front brake and XT rear brake w/180mm rotors
    • Rockshox Dropper Post

  13. #13
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    Quote Originally Posted by Skeeno View Post
    Just found this info on the 2020 bikes.

    Sent from my Pixel 3 using Tapatalk
    What does this mean? Is the Hawk Hill a good peddler?

  14. #14
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    Quote Originally Posted by shades9323 View Post
    What does this mean? Is the Hawk Hill a good peddler?
    Anti-squat has a bigger impact on peddling than leverage ratio.

    Sent from my Pixel 4 using Tapatalk

  15. #15
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    Quote Originally Posted by CCS86 View Post
    Anti-squat has a bigger impact on peddling than leverage ratio.

    Sent from my Pixel 4 using Tapatalk
    Would you happen to know anything about the AS on the Hawk Hill?

  16. #16
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    Quote Originally Posted by shades9323 View Post
    Would you happen to know anything about the AS on the Hawk Hill?
    I have a rift zone, very similar to the hawk Hill. It's an ok Pedaler, but not stellar. It's a great all around trail bike that like the downs. If you are looking for a climbing machine, look elsewhere.

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  17. #17
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    Quote Originally Posted by Skeeno View Post
    I have a rift zone, very similar to the hawk Hill. It's an ok Pedaler, but not stellar. It's a great all around trail bike that like the downs. If you are looking for a climbing machine, look elsewhere.

    Sent from my Pixel 3 using Tapatalk



    I don't know what you feel the Rift Zone lack in climbing performance, but I am very happy with my Rift Zone's abilities there. A bunch of factors play into climbing performance besides frame geometry, like cockpit setup / riding position, the shock itself, tires and pressure, etc.

    On the frame side of things, near the sag point, the anti-squat ranges between 120% - 113%, depending on gear selection. That makes for very efficient pedaling and climbing.

    Multitrac Suspension data curves-rz-anti-squat.jpg

  18. #18
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    Quote Originally Posted by shades9323 View Post
    Would you happen to know anything about the AS on the Hawk Hill?


    I do not.

    I created the Linkage model for my Rift Zone, which is why I have the detailed data. I don't see anything in the web library for the Hawk Hill. Since it also uses the Multi-trac suspension, it will likely be similar to the Rift Zone.

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