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. The head tube angle is slacked so your toe doesn't hit the front tire as easily 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 700x40 cross or gravel tires.

The fork can clear a Tektro R559 Long Reach Rim Caliper.

Frameset includes Frame, Headset, Seatpost Collar, and Fork only.

International Customer?

Find out about international shipping here:

https://www.poseidonbike.com/pages/international-and-out-of-country-orders

Box Dimensions are: 39x7x22 (inches)

Box Weight: 10.5lbs

We made this bike to fit your standard fixed gear wheels so a 100mm front and a 120mm rear.

Fits a 68 x 115 square taper bottom bracket. We recommend a square taper bottom bracket and crankset for this build.

All straight returns are subject to a 15% restocking fee and return shipping. The bicycle must be returned in the original packaging (unopened and unridden).

FX Tracklocross

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FX Tracklocross Frameset