Raised bottom bracket prevents pedal striking on steep drops for safer riding
Slacked head tube angle reduces toe overlap, allowing smooth turns on small frames
Fits 700x40 cross or gravel tires for versatile off-road capability
Compatible with Tektro R559 long reach rim caliper framesets for advanced braking
Solid frame design ensures stability and control on rough terrain
Summarized by Shop
The FX is the product of wanting to shred around on dirt with our brakeless fixed-gear frames. We tweaked specific areas of the bike to try to improve common issues that you encounter riding fixed and especially, riding fixed on dirt.
The Poseidon FX has a raised bottom bracket that prevents pedal striking even on the steepest of drops. T
Frame Material
Not specified
Color
Silver
Compatible Bike Type
Road
Pattern
Solid
Box Dimensions
39 x 7 x 22 inches
Box Weight
10.5 lbs
Summarized by Shop
4.6
24 ratings
5
4
3
2
1
Great frame
Really a great quality frame! Very lightweight and assembled with my parts with no issues. They dudes at Poseidon were awesome! They helped me get the frame ordered and included the extra parts I ordered in the same box to help cut the cost on shipping! I really appreciate it and love riding my Poseidon FX
A
Austin · August 5, 2026
Honestly Fire
I wasn't expecting much out of this frame, but for the price it is so worth it. It has quickly become my go to bike for a commute or quick rip around town, even over my more fancy bikes. Its a bike you can beat on and not be too worried about and that's what I love about it.
E
Ethan · August 5, 2026
feels a bit tall i think I should have gone with an xs but whatever