Three weeks ago, a 30.5-inch wheel existed on exactly one bike. Now it’s a question five tire and wheel companies have answered on the record, in the same week, without being able to coordinate their stories first — and that’s the part that changes this from a curiosity into a story.

Pinkbike reported that Schwalbe, Maxxis, Continental, Reserve, and WTB all responded on record when asked directly about 30.5-inch wheel development, and the responses weren’t a uniform “no comment.” Schwalbe’s piece of it isn’t new, exactly — Escape Collective and Brújula Bike had already reported Schwalbe’s development confirmation about a month earlier, in early October, before Cube even raced the prototype at Enduro Worlds. What’s new this week is the other four companies going on record alongside Schwalbe. We’ve been tracking 32-inch wheels all year as the industry’s big swing at a new standard. Turns out the tire makers themselves have been quietly tooling up for something smaller and, maybe, more useful.

Quick Take

What happened	Schwalbe, Continental, Maxxis, Reserve, and WTB responded on record to 30.5” wheel rumors
Continental	Confirmed “actively developing 30.5” tires”
Schwalbe	Confirmed active development to Escape Collective — moves it from rumor to real project
Maxxis	Hedged — will support it “if it proves it can deliver measurable benefits… and gains real market traction”
WTB	Has relevant history: 750D format (660mm bead seat diameter), 2023 Moots Routt CRDD prototype
Reserve	Confirmed “have 30.5” wheels in development,” moving forward on the assumption it becomes a standard
Precedent	Cube raced the first 30.5” wheel at 2026 Enduro Worlds in Finale Ligure, Oct 17-18
Biggest hurdle	No frames or forks designed around 30.5” yet — unlike 32”, which has UCI approval and shipping prototypes
Best for	Wheel-size watchers tracking the gap between 29 and 32
Skip if	You want anything to buy — there’s still nothing

From One Prototype to Five Companies on Record

Three weeks ago, we wrote up Zakarias Johansen racing a one-off 30.5-inch front wheel at the 2026 UCI MTB Enduro and E-Enduro World Championships. One rider, one modified Cube Fritzz, one tire — the Schwalbe Magic Mary — because it was the only one on the planet built for that size. We called it a research weekend, not a launch, and said the real signal would be whether a second tire brand committed, or whether Cube said the word “production.”

Neither of those exact things happened. What happened instead is bigger: Pinkbike went to the industry directly and asked who else was working on this, and instead of silence, got five answers. That’s not one factory team’s race-weekend bet anymore. That’s a wheel-and-tire industry admitting, mostly in the same breath, that it’s been working on something it hadn’t talked about publicly.

What Each Company Actually Said

Not every brand said the same thing, and the differences matter more than the headline.

Continental gave the most direct confirmation. Per Pinkbike, Continental said it’s “actively developing 30.5” tires” — present tense, no hedge, no conditional. That’s a notable position for a company that just spent eight months scaling its Dubnital tread to 32-inch instead of touching 30.5. Continental is now working both ends of the gap between 29 and 32 at once.

Schwalbe confirmed the same thing to Escape Collective, which is the detail that moves this from rumor to real project. Schwalbe already had skin in the game — the Magic Mary on Johansen’s Fritzz was Schwalbe rubber from day one — but a one-off race tire built for a factory team’s prototype is different from a company confirming it’s developing the format on its own initiative. Escape Collective’s reporting put it plainly: this is no longer just an experiment.

Maxxis didn’t commit. Maxxis told Pinkbike it will support the size “if it proves it can deliver measurable benefits… and gains real market traction.” Read that again: that’s a company declining to say yes, while leaving the door open enough to not look dismissive. We’ve seen this exact posture from Maxxis before — they were the first and, for eight months, only tire maker to commit to 32-inch, building custom tooling before anyone asked them to. This time they’re watching from the sideline instead of leading. That’s worth sitting with. The company that moved fastest on the last new wheel size is the one hedging on this one.

WTB brings history nobody else in this conversation has. WTB’s 750D format — a 660mm bead seat diameter — predates this entire news cycle, and in 2023 Moots built a Routt CRDD prototype specifically around that size. That’s not a direct match to whatever “30.5-inch” ends up meaning in this new round of development (bead seat diameters and inch-equivalent naming don’t always line up cleanly — ask anyone who’s had to explain 27.5 vs. 650b at a shop counter), but it means WTB isn’t starting from zero. They’ve already solved some of the tooling problems once, on a gravel bike nobody was paying attention to at the time.

Reserve gave one of the most direct confirmations in the whole piece. Gavin Francis, Reserve’s product communications specialist, told Pinkbike the brand does “have 30.5” wheels in development and are moving forward under the assumption that they will gain momentum as a standard.” Francis also pointed at the same chicken-and-egg problem everyone else in this story runs into: testing a 30.5” wheel on a bike built around 32”, he said, is a bit like testing a 27.5” wheel on a frame designed for 29” — close enough to bolt on, not close enough to tell you much. That’s a real commitment from the wheel brand that shipped the first buyable 32-inch carbon wheelset last month. Reserve has already shown this year it will tool up for a format before its own corporate family — Santa Cruz, Cannondale, Cervélo, Focus — builds a single frame to put the wheels on, and the same pattern looks like it’s repeating with 30.5.

Why This Is Different From the Cube Story

The distinction is sourcing, not size. Cube’s Enduro Worlds wheel was one team’s prototype, raced once, with no confirmation of where it was headed. This is five companies — tire makers and a wheel brand — independently telling a reporter, on record, that 30.5 is a real line item in their development roadmaps. Some of them (Continental, Schwalbe, Reserve) are already doing it. Others (Maxxis) are watching and will move if the market does. WTB has relevant history sitting in a drawer since 2023. None of that happened because of one race weekend in Finale Ligure. It happened because enough people inside the industry had already been asked the question internally that when Pinkbike asked it publicly, the dam broke at once.

That’s the real story here: not a prototype, but five companies on record — four of them new this week, plus Schwalbe’s confirmation, which Escape Collective and Brújula Bike had already reported a month earlier. First time that’s happened for this wheel size. It didn’t happen for 32-inch in one week — that rolled out over months, brand by brand, starting with Maxxis’s tooling announcement in January and stretching through Industry Nine, Continental, and Reserve across the rest of the year.

32-Inch vs. 30.5-Inch: Where Each Format Actually Stands

Here’s the side-by-side, and it’s not close yet.

	32-inch	30.5-inch
UCI status	Approved for XC racing, effective 2026	No ruling, no application pending
Tires in production	Two — Maxxis Aspen, Continental Dubnital (April 2027)	One — Schwalbe Magic Mary, built for a single prototype
Frames you can order	BMC, Norco, Zinn, Dirty-Sixer	None
Wheels you can buy	Industry Nine Hush, Reserve 30|XC	None
Manufacturer commitments	Confirmed, with shipping products	Confirmed, mostly still in development
Race results	Trek prototype at Soldier Hollow, Ventum 14th at Leadville	One rider, one weekend, at Enduro Worlds

32-inch got nearly a year’s head start, and it shows. The format has a sanctioning body’s blessing, two tire companies actually shipping product, and four brands you can place an order with today. 30.5 has confirmations. That’s a real step up from one prototype, but confirmations aren’t frames.

The Hurdle Nobody’s Solved Yet: There’s No Bike

Ask what’s actually stopping 30.5 from becoming a thing you can ride next season, and every manufacturer we’ve seen quoted lands on the same answer: there’s nowhere to put the wheel.

32-inch had this problem too, but it cleared the bar fast because the UCI approval gave bike brands a reason to commit before the tire selection existed. BMC, Norco, Zinn, and Dirty-Sixer built frames around a format they knew would be legal to race, and the tires followed. 30.5 doesn’t have that lever. No governing body has ruled on it, which means no bike brand has the same competitive pressure to build a frame around a wheel size that currently fits exactly one modified Fritzz.

That’s the chicken-and-egg problem in its purest form. Tire companies won’t commit fully to tooling until frames exist to put the tires on. Frame builders won’t commit to a new dropout spacing and fork crown clearance until tires exist to sell alongside the bike. Cube’s Fritzz proved it’s physically possible to shoehorn a 30.5-inch wheel into an existing platform with enough fork and geometry work. It didn’t prove anyone’s ready to build that platform from scratch for retail.

Why a Size Between 29 and 32 Might Actually Make Sense

A 30.5-inch wheel is the compromise point between 29-inch and 32-inch mountain bike wheels — bigger than a 29er for better rollover on square-edge hits, but closer to 29 in handling than a full 32-inch wheel. The pitch, per Cube’s own internal testing from the Enduro Worlds debut, is straight-line speed closer to 32 without the cornering penalty that comes with a heavier, bigger-diameter front hoop. It’s a narrower bet than 32-inch: less upside, but less handling compromise too.

That middle-ground logic is exactly why 27.5 carved out a permanent niche between 26 and 29 instead of disappearing once 29ers got good. Riders who found 29 too slow to turn and 26 too harsh over chatter had a real reason to pick 27.5 and stay there. If 30.5 ends up solving a similar problem — riders who want more of 32’s rollover without giving up 29-adjacent cornering — it has a path to being more than a footnote. If it doesn’t solve a distinct enough problem, it risks becoming the wheel-size equivalent of a solution nobody asked for, splitting an already-thin tire market three ways instead of two.

Who Should Actually Care About This

Wheel-size watchers who’ve been tracking the 29-to-32 progression all year. This is the first time the confirmation came from the supply side instead of a single team’s race-day prototype — a meaningfully different kind of evidence.

Enduro and trail riders who thought 32-inch sounded like too much wheel. If the format matures, this is being built for exactly that complaint: more rollover than 29, without fully committing to 32’s handling trade-offs.

Nobody shopping this year, or next. Confirmed development isn’t a product. There’s no frame, no fork, no tire you can buy, and based on how slowly 32-inch moved from UCI approval to actual bikes in dealers, 30.5 is realistically a 2027-or-later conversation even in the best case.

What We’re Watching For

Whether any bike brand says the word “frame.” Tire makers confirming tooling is one half of the equation. Until a brand with an actual MTB program — not a one-off factory prototype — commits to building around 30.5, this stays a supplier-side story.

Whether Maxxis moves off the fence. Maxxis led on 32-inch and is hedging on 30.5. If Maxxis’s “measurable benefits” and “real market traction” conditions get met and they commit, that’s the signal the format has crossed from interesting to inevitable. If they stay on the sideline through 2027, that tells you something too.

Whether the UCI gets asked to rule on it. 32-inch didn’t become buyable until the UCI cleared it for XC racing. Enduro and trail riding don’t have the same sanctioning pressure that XC racing does, so 30.5 may have to earn adoption purely on merit, without that regulatory tailwind.

The Bottom Line

A month ago, 30.5-inch wheels were one rider’s experiment at a World Championship most casual fans weren’t watching closely. Now it’s five companies on the record, three of them — Schwalbe, Continental, and Reserve — already building toward it, one (Maxxis) openly undecided, and one (WTB) sitting on relevant engineering work from 2023 that suddenly looks less like a dead end and more like early homework. That’s a real shift in how seriously the industry is treating this gap in the wheel-size lineup.

It’s still not a format you can buy into. No frame fits it. No fork is built around it. The tire shelf has one SKU that exists because of one team’s race bike. But the conversation just moved from “did you hear about that one weird wheel at Enduro Worlds” to “five major suppliers are on record developing this,” and that’s the kind of shift that tends to precede actual products, not follow them. We’ll keep watching the same way we watched 32-inch go from a UCI ruling to bikes you could actually order: slowly, then all at once.

---

Confirmations and quotes sourced from Pinkbike. Schwalbe’s piece of this story was reported earlier, in early October 2026, by Escape Collective and Brújula Bike. No manufacturer named here has announced a frame, fork, or retail tire for the 30.5-inch format at time of publication.