Canyon built LeBron James a gravel bike, and it is not a standard Grizl with a longer seatpost and a hopeful fit chart. This one is a custom 32-inch-wheeled Canyon Grizl CF, built specifically for James, who stands 6’9” and is also a Canyon investor. Canyon says the bike is fully functional, not a prototype, but also, not a preview of something headed to the website next week.
It is a one-off 3XL gravel bike built for a rider most production frames were never going to fit properly.
James’ Grizl rolls on 32-inch wheels, which makes more sense under a rider of his height than it would under most of us. The industry has been circling larger wheels for a while now, especially around rollover, momentum, and fit for taller riders. This bike puts that idea on a very public stage.
Not Just a Bigger Grizl
The easy version would have been to scale up an existing Grizl and call it custom. Canyon did not do that.
For a rider of James’ size, geometry is only part of the problem. The loads going into the frame, fork, axles, cockpit, and seat cluster all change. Make the tubes longer without rethinking the structure, and you don’t get a gravel bike. It is a flexy ladder with disc brakes.
Canyon says the frame uses a bespoke carbon layup developed around the loads James puts into the bike, with reinforcement added throughout. The thru-axles are custom CNC-machined with Boost spacing, and the seat clamp is custom as well.
The bike was designed and built in southern Germany with specialist manufacturing partners. Canyon also says the project tested construction processes that could shorten future development timelines and improve how the brand builds for riders at both the pro and consumer level. LeBron gets the bike. Canyon gets the data.
Built For A King
The spec is exactly what you would expect for a one-off Canyon project, especially one for King James.
James’ custom Grizl CF runs SRAM RED AXS XPLR with a 38T chainring and 10-46T cassette. Wheels are DT Swiss XR1700 32-inch, wrapped in Schwalbe G-ONE RX tires. Canyon finished the bike with its CP0039 Gravel Cockpit, with a 16-degree flare.
The geometry is big, but not cartoonish. Canyon lists the frame as 3XL, with a 625mm seat tube, 642mm top tube, 680mm stack, 470mm reach, 194mm head tube, 476mm chainstays, and a 1201mm wheelbase. Head tube angle is 71.2 degrees.
In the photos, the proportions work better than expected. The larger wheels help the whole bike look balanced, rather than stretched. On a rider of James’ height, 32-inch wheels do not look like a stunt. They look like they belong there.
Why 32 Inches?
Bigger wheels are not new thinking. Mountain bikes already went through the 26- to 29-inch shift, and gravel has been moving toward bigger tires, longer wheelbases, and more stability for years. Now, were starting to actaully see them hit the shelves.
Canyon’s reasoning is simple and echos the broader cry: the larger diameter rolls over rocks, ruts, and washboard more easily, with less shock to the rider. That is especially relevant for a very tall rider, where a normal production frame and 700c wheel can start to look and feel undersized.
The issue is availability. Almost no 32-inch production gravel frames exist, and tire options are still thin. That keeps this from being a product launch. It is more of an engineering exercise, and probably a useful one.
For most riders, 32-inch gravel wheels are not coming to the garage anytime soon. For very tall riders, though, the idea has real logic. Better proportions, better rollover, and fewer compromises than forcing a big athlete onto equipment built around average-size bodies.
Why LeBron?
The Canyon tie-in is not random. James’ LRMR Ventures group took an equity stake in Canyon in 2022, and the brand has leaned into that relationship around cycling access, community, and the idea that bikes are not only for racers.
James also has a real cycling history. He grew up riding in Akron, using the bike to get to practice, visit friends, and move around his hometown long before the NBA spotlight.
Canyon delivered the bike to James at home in Akron, where he rode with his high school teammates, known as The Fab Five. That gives the project a little more depth than the usual celebrity custom bike handoff. Yes, it is a wild bike for one of the most famous athletes in the world. But it is also a bike for someone who actually rides.
Can You Buy One?
No. Sorry. James’ 32-inch Grizl CF is a one-of-one and is not for sale. However, that does not make the bike irrelevant. Custom projects like this let engineers work at the edge of the size chart: taller riders, bigger wheels, higher loads, longer frames, and new ways to keep it all riding like a proper bike.
Some of that may never turn into a production 32-inch Grizl. Some of it could show up later in frame sizing, carbon layups, hardware, or fit work.
For now, LeBron gets a gravel bike that finally fits, Canyon gets a very public engineering exercise, and the rest of us get another reason to keep an eye on 32-inch wheels.
