PNF Series


Full carbon cross-country mountain bike wheelset with carbon composite G-Spokes built to be the lightest in class.

All wheelsets ship with silver ferrules. Black and gold ferrules are out of stock.



Go fast. Go Smooth.

This cross-country GMX 25 wheelset is defined as riding fast and smooth. With Ride Smooth Technology from the G-Spoke hand built into every wheel, you have a 1314g mountain bike wheelset without compromising ride quality or durability. Ride Smooth Technology reduces pesky vibrations that lead to increased performance by increasing traction, confidence, and control. These wheels accelerate so effortlessly and smoothly while also reducing trail chatter and fatigue.

Additional information




Standard Steel


Gulo Composite G-Spokes(24) with Ride Smooth Technology, Made-in-USA, 3.1 grams/spoke, superior impact resistance

Ferrule Color



Front 15X110 Boost, Rear 12X148 Boost


Shimano HG, Shimano Microspline, SRAM XD


Black, Oil Slick


1314 grams/wheelset, 595 grams/front wheel, 719 grams/rear wheel


Gulo Premium Carbon 25mm internal width hookless, asymmetric offset, 24-hole, 29er


Gulo ETI System Boost (110ft/148rr), 6-bolt, 54pts/6.66° engagement

Hub Finish

Black, Oil Slick

Comes With

Rim tape and valves installed

Weight Limit

100kg, 220 lbs

Free Shipping*

*Offer valid only in the continental US.


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I love my GME-30's, I immediately felt the faster acceleration once I put them on.  The stiffness paired with the weight is great! They're also way stronger than I was expecting, I had a really hard case and the wheel is still running perfectly true!

- Grant Godfrey

These wheels felt great on my first ride. Super responsive. Cornering felt fantastic. I thought being stiffer they would beat me up a little while climbing rocky terrain, but I didn’t feel that. The overall ride just felt better. I rode Kitsuma in Old Fort, NC which is a notoriously fast trail so I put them to the test for sure.”

-Nick Pace

I have been enjoying my PNF Enduro wheels. They track well and keep a good tire contact to the ground through tech DH and climbing. The carbon woven spokes are tough as nails. People get hesitant when they hear carbon spokes but these cut into a branch that got sucked into my wheel with no damage, wheel Tru.

-Tim Haggerty

I'm riding the GME-30's and I couldn't be more pleased with the ride. These wheels allow me to feel the terrain so directly that I can anticipate and quickly respond to changes in traction with my body position. They've conquered the terrain of Pisgah, Windrock, Beech, and Sugar without a hitch. Gulo Composites, thank you for giving me a 6th sense.

-Rachel Kelleher