One of the things I love about our content here on the Radavist are features like this. Martin runs a hobby company called Second Spin Cycles, an outfit we did a Shop Visit on a few years ago, and this is his 1987 Mantis X-frame, aka a Valkyrie. Check it out in detail below with words by Martin…
![A Second Spin 1987 Mantis X-frame/Valkyrie](https://media.theradavist.com/uploads/2021/03/BY9A8295-scaled.jpg)