M4 Spring Forks

The Dragonfly's forks are manufactured by Metric 4 in Italy.   The name M4 Racing Parts is also used in the maintenance manual. 

Forks allow a lot of room for creativity among manufacturers.  This fork has some idiosyncrasies.  For example, a pin spanner is required to remove the fork caps and also to disassemble the forks for seal replacement.  Based on the Hell Team's excellent video, it appears a Park Tool SPA-2 (red) pin spanner will work. 

Only the left side contains a spring, part number 402A30275.   No optional spring rates are mentioned.   This was initially a bit worrying, but I later learned that Tech fork seals and springs fit.

M4's air-spring fork is presented in detail under the EM Race's Mechanical section heading on this website.