5 reviews

Built By Jerry | GCX

Regular price $1,750.00 1245 grams






GCX: The GCX is my gravel and cyclocross racing wheelset. Based on the Rule, but lightened to a 310 gram rim (compared to 330gr for the ultralight Enve G23). I chose an asymmetrical profile front and rear, same as the Rule, and reduced the spoke count to 24. The internal width is 23mm and depth is 25mm.  External width is 28mm. 

For 2021, rims are now constructed using graphene doped Toray T800 carbon fiber. Graphene doping is a new process using wherein a very small amount of graphene (under 2%) is added to the carbon matrix during processing. Scientific testing has demonstrated significant increases in strength and impact resistance results from the graphene doping process. Our testing has shown this to be true in practice, allowing pretty significant weight reductions in the rim construction.

The GCX is an astonishingly light, great looking wheelset that remains very stiff laterally thanks to the improved bracing angle provided by the asymmetrical rim shape. The wheels ride lighter due to the significant reduction in rotating weight and the feel is noticeably snappy. High speed cornering as is common in American style cyclocross is excellent even with the ultralight weight due to the high, even tension build process and the improved spoke angle of the asymmetrical profile. Wheelset weights range from 1,260 grams (DT350) to 1,170 grams (DT240). This is unheard of in a dependable, race ready tubeless wheel. 

All out performance compared to the Rule is improved in every regard, which was the design intent. So why still consider the Rule? The GCX rim requires compromises to achieve a no holds barred race wheelset. The Rule is 365 grams vs an incredibly light 310 grams and is laced 28H 3-cross vs 24H 2-cross for the GCX. The Rule is a very solid rim that builds into a dependable wheelset under 1400 grams that any size rider will get years of trouble free service from. Ride and feel is very similar to the GCX.

With the GCX everything is maximized or minimized or pushed harder to achieve the highest performing tubeless wheel possible. Just like a race prepped car verses an off the lot performance car, everything has been massaged and hand tuned  with extreme care. That is the essence of a Built By Jerry wheel. 

All wheels come tubeless taped with premium alloy valve stems installed, ready for you to mount tubeless tires. Through axles are not provided with wheels as they are part of the bike-frame system.

Customer Reviews
5.0 Based on 5 Reviews
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JT
12/13/2020
John T.
United States United States
I recommend this product
GCX, Light, stiff, fast

I am enjoying these GCX Built by Jerry wheels on my Raleigh RXC Pro cyclocross bike. They look and feel fast right out of the box. I replaced my aluminum Bontrager *** wheels and immediately felt a difference. Stiff! Instantanious acceleration. The I9 hubs sound nice too. Jerry was a great help selecting the right setup. I'm look forward to many miles of fun.

Built By Jerry Built By Jerry | GCX Review
JT
11/29/2020
John T.
United States United States
I recommend this product
GCX.Nice set of wheels

Light, fast and stiff. Great looking too. Just what I was hoping for. Tubeless setup sealed up tight with just a hand pump. Jerry was super helpful in selecting the right wheels for my riding needs.

Built By Jerry Built By Jerry | GCX Review
A
11/13/2020
Anonymous
United States United States
I recommend this product
Everything I was hoping for.

These wheels are fantastic. Light, strong, the P321 hubs are amazing. Jerry was super helpful. Getting the tubeless setup was quick and easy and the result feels rock solid. I've put about 300kms on them so far and couldn't be more pleased.

Built By Jerry Built By Jerry | GCX Review
E
07/07/2020
Emily
United States United States
I recommend this product
Excellent lightweight rim!

I love riding and racing these rims on my gravel bike. They are super lightweight and low profile, which I appreciate as a smaller rider. These have been a great all around rim for me; while they are light enough to race, they are also very durable. When my gravel rides take me to single track and rougher terrain, these rims have no issues keeping up. Would highly recommend.

LG
07/05/2020
Lizzy G.
United States United States
I recommend this product
Light Fast and Sharp

love these next grx wheels. i’m obsessed with how light these wheels are and still feeling stuff when sending on the trails. i would recommend these to anyone looking for a high quality set of gravel wheels. and the custom color option on the nipples and hub!!! can’t beat these