After riding the Expressway on numerous trails we decided that we wanted to tweak that frame and include a few things that people run into riding a fixed gear bike on the trails.
The Poseidon FX has a raised bottom bracket which prevents pedal striking even on the steepest of drops. The head tube angle is slacked so your toe doesn't hit the front tire when turning. This also offers a slightly softer ride on rougher terrain. On the small frame in particular you will see that the head tube angle is slacked the most as toe overlap is a common problem for smaller frames. You can pedal freely even through the tightest of turns on that size.
The FX frame can easily fit a set of 700x35 cross or gravel tires. However, depending on the tread pattern you can get up to a 700x38 in the rear and a 700x43 in the front.
These frames have been stress tested and are backed by a lifetime warranty for the frame and fork.
Frame and Fork: 6061 Double Buttled Hydroformed Aluminum (Lifetime Warranty). Fork includes front disc brake mount if needed.
Cage Boss Mounts: 2
Fits a 27.2 seatpost
Total weight: 6.2lbs for frame, uncut fork and headset.