My DIY Rocker Plate

What is it?

The rocker plate fits between the floor and your existing trainer. It allows you to rock your bike just like riding outside. It is a simple and subtle way to make riding on a trainer feel much better.
Not everyone has the same opinion about it, but in general the stories are positive to very positive.





When I switched to a smart-indoor trainer, the TACX Flux, my rides became more interesting as well. With Rouvy and RGT and sometimes a trip to Zwift, I unnoticed I was going to train longer, just because I liked it. Especially Rouvy has stimulated me in this, because there you choose a ride, and that should (of yourself) you ride out ... But when I was training for more than an hour in a row, I got some pain in my back, shoulders and hips. Then I started to study a Rocker Plate. A plate underneath your trainer that allows your bike to swing a bit, from left to right and with some rocker plates also from front to back. After a lot of reading into the material I started to design and build a simple Do It Yourself version.

Before I continue with the building details and additional costs, the result:

It has really helped me, I train better with it, can stay in the saddle longer and because of this I was able to ride longer rides. Indoor sessions now up to 2,5 hours are no longer a problem.

Building

I chose the variant with a swing from left to right, so not forwards and backwards. Furthermore, I have chosen the variant with tennis balls as a suspension.

Simply saw 2 identical boards of wood of the size of your trainer. Drill the number of holes of 5 cm diameter in both boards. Buy tennis balls of different pressure and go cycling.

I used plywood 18mm wood. The saw holes for the tennis balls are 5 cm. Place them in such a way that your trainer doesn't have to lean on the holes. My Flux fits exactly, so if you have a TACX FLUX you can copy the drawings in this way, otherwise you have to take a look where the pressure points of your trainer are.

I placed around  my trainer simple corner profiles. And I started experimenting with the tennis balls until I found a nice swing.

The rocker for my TACX FLUX cost around 70 euros.

For the Dutch market here is my list:


  • Wood : Hornbach , 244cm X 122cm, 18mm plywood, 47 euro, sawing is free (see picture, print it out and take it to the Hornbach)
  • Tennisballs, Decathlon, 3 types
  • Corner profile, Action, 2 euro for 10 pieces


Building time around 90 minutes!

Play around with the number of tennisballs on each side to get for you the ideal swing.

Sawing the plyWood

Sawing the edges


With the tennisballs







Decathlon tennis balls with different pressure






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