Cycling Interests

DIY Indoor Trainer Rocker Plate

What is a Rocker Plate?

In essence, a Rocker Plate is a device which allows the trainer and bike to tilt from side to side, more accurately simulating the real life motion of riding a bike. Proponents say it increases comfort and makes long rides more forgiving on those sensitive parts of the anatomy that may be otherwise get a bit of a hard time.

https://zwiftinsider.com/rocker-plates-phenomenon/

That’s a quote I stole from Zwift Insider because I was feeling too lazy to explain it myself.

I do want to expand on this idea. The first rocker plates only tilted from side to side; however, my rocker plate design not only tilts from side to side, but it also moves fore and aft… or forwards and backwards. In theory this should attempt to replicate sprints or out of the saddle efforts.

I am not the creator, finder or even smart person who thought of this idea. I merely took all of features I liked in all of the other rockers I saw and created my own.

I offer the DXF plans and where to buy all of the materials for my rocker in this Google sheets document below; however, if you are not DIY inclined I do sell the rockers on my website Ride South.

Specs Gallery

41 thoughts on “DIY Indoor Trainer Rocker Plate”

  1. Hi, Andrew:

    thanks for your DIY video, give me confident to DIY my rocket plate.
    I have reviewed your excel spreadsheet for all parts, however, I do not see any design drawing (Autocad) iuor CNC DXF plan so that I can cut and build by myself.

  2. Andrew where are the templates to download this rocker panel. I the video you refer to the dfx file but can’t find it.

  3. Andrew…thanks much for sharing your rocker design. Your parts list was perfect and I was able to source everything short of the two springs (backordered). Couple of questions:

    1. Can you please confirm that both plates can be cut from one 4′ x 8′ plywood sheet?
    2. Does your downloadable DXF file contain only the general drawing of the plates (I only see one sheet in the file)? I was hoping to get the overall measurements of the plates and associated cutouts.

    Again, thanks for sharing your design and I look forward to completing this project! Happy New Year!

    1. Ray, that’s awesome to hear!
      1. Both plates can fit on a 4’x 8′ or a 5′ x 5′
      2. The measurements are in the DXF the overall length of the boards are 60″ all of the other measurements should align when you scale the length of the board.

      Let me know how it works out for you. Happy New Year!

      1. Andrew… Thanks for the info on the plywood sizing…that’s good news. As for the DWF files, I’ve downloaded both the 35MM and 40 MM you’ve posted on your spreadsheet. Unfortuantely, both only show the basic outline of the top and bottom plate…no annotations or measurements. I am using a few Android apps to view your files…but the outcome is the same. Might you have some suggestions for me please? Otherwise, would you be able to send me a screen shot of the plates indicating the measurements?

        Thanks much in advance!

        Ray

        1. Ray, if you scale the centerline from the nose to the tail of both boards and size them to 60″ everything else will be to size. Unless you have some type of CAD program you won’t be able to see the measurements. I never had the time to go and do a measurement drawing.

          1. Thanks much Andrew. That’s what I thought. I’ve already completed the scale measurements based on the DWF drawings. Appreciate your time and comments!

            Ray

  4. Andrew,
    I notice on your website the photo of the rocker plate is elongated at the base, perhaps to accomodate a trainer like the Wahoo Kickr Core. Is that the purpose of the modification? If so – can you tell me what dimensions were altered? Thanks in advance.

      1. Andrew, thank you so much for the information. I am going to attempt to build one soon. However, I have a Kickr Core and wondered if the DXF files were available anywhere for the modified version as referenced above.
        Thanks!

  5. Hi Andrew-great detail on the site here for DIY build! Question on the springs-your link option is currently not available. Assume you have found this total load capacity / N/mm the right force for the for and aft motion? Struggling to find a comparison with right measurements and load factors – any advise greatly appreciated. In Canada so most are in LB/in (looks to be a 5 for 1 ratio… thx

    1. Stew, I get all mine from Allied at these specs 135mmx27mm 1.23N/mm. Allied does have a Canada specific site, but they don’t have any springs currently ready to ship; however, they have some on order. I typically place an order fo them if they don’t have any ready to ship and they are pretty quick to get more.

  6. Hi Andrew,
    It it going to be compatible with Taxc Neo? Any mounting holes to be added to current design to install Neo?

  7. Amazon is direcly suggesting ALL other necessary items at the bottom with :
    “Customers who bought this item also bought…”
    Amazing

  8. Awesome write-up! I’m sure I’l be building two of these in the next few weeks.

    Side note, to make it easier to measure a hole pattern, use the back (inside measuring jaw) of the calipers, measure inside one hole and zero the calipers at that diameter. Then measure from the outer edge of one hole to the outer edge of the next and the calipers will read your centerline distance.

  9. Comment
    Your parts list calls out SCS20UU 20mm linear bearings, but the link for Amazon goes to a SCS16UU with no option to select the 20mm bearing.

    1. It’s most likely that vendor ran out. If you search Amazon for SCS20UU you should be able to locate another one, if not they are on the AliExpress link as well.

  10. Hi Andrew,

    I live in Dallas and would be interested in buying a rocker plate. Do you have any in stock?

  11. Hi Andrew,
    First up, your plans are awesome as are your videos. Was wondering whether top platform is wide enough to mount a kickr bike. I did some measurements and it looks like it would need to come forward from the back about 230mm.

    1. Mark,

      Thank you! The design does fit a Kickr bike. I have a few customers that have them and I just purchased one myself and it fits great.

  12. Thanks very much for sharing these designs!
    Would a 1200mm linear shaft work ok with this? Struggling to find a 1400mm one in the UK. Would it just be a case of mounting the 2 standoffs on the end 10cm inward?

    1. Geoff,

      My specific design is made for a minimum of 1300mm rod. 1200mm will not work with the mounts. You could bring the mounts inboard, but I cannot guarantee you won’t run into collision issues the plate moves fore-aft.

    1. Angie,

      I have not been able to check personally if an Elite Suito fits on the design; however, I did get to fit a Elite Direto onto one. There was some minor over hang from the rubber feet on the legs, but it fit.

  13. Hey Andrew, thanks so much for this!

    I have a few questions, if you have the time:
    1) I saw a V2 PDF of your design (https://drive.google.com/file/d/1yIlaeMLvrXlSw29-RB5z4FbLAqi5j_qG/view). Are there any significant design modifications from v1?

    2) Are the M6-1.0 30mm bolts for the top and bottom plates the same? Asking as you are linking to different part numbers on Grainer and eBay, but not Amazon

    3) Do you have a recommendation for the material of the linear bearings? I have seen them advertised as Aluminum and Polymer.

    Cheers!
    Fred

    1. Fred,

      1. There are no significant modifications from V1 other than different mounting slots, removing more material for a weight savings and expanding the back for Kickr Core and other back leg rockers.
      2. You can use 30 for both top and bottom just fine. I use 25 on bottom just to save some weight.
      3. The linear bearings I use are aluminum body with steel ball bearings. I really wanted to try the polymer ones, but couldn’t get my hands on any, so I can’t recommend them as of now.

      Thanks!

  14. Hi. Love the simplicity of the build and that you have a parts list with links. Saves me a lot of searching!
    I see that you have used a Ø20 mm steel rod. Do you feel that was necessary with regards to stiffness? I’m tempted to go for a Ø16 mm instead to save weight but not at the expense of stiffness.

    1. I like the 20mm rod, it may be overkill tho. Many people in the rocker plate group use 16mm rod. Just a heads up that if you do, my template likely won’t work as the standoffs and 16mm bearings will be smaller.

  15. Andrew,

    Great design. Thanks for the hard work. I have located most of the products needed following the links you have supplied. I live in Ohio and cannot locate the springs. Any suggestion would be helpful. Please advise.

    Thanks,

    Matt Neighbor

  16. Andrew,
    Thanks for taking the time to detail your rocker plate design. I’m looking forward to building one over the next few weeks.

    I’m new to CNC routing but have a local guy lined up. I just want to ensure I’ve got the right setup. I’m looking at the DXF files (for both 35MM and 40 MM bearing models) using various available CAD tools but the designs seem to be visualizing in 2D. Any idea if this is normal for tools like freecad, librecad, autocad online viewer? Should I expect to see the depth (for example, in countersinks and logo)?

    Also, the front and back are side-by-side, flipped. Is this already laid out for a 4’x8′ or is the expectation that they should be repositioned to fit the board (4×8, 5×5, etc) in the CNC’s CAD tool?
    Thanks,
    Eric

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