Vision Gravel Wheels

Axle Standards, Rotor Mounts, and Freehub Options

All Vision AGX wheels are built around 12mm thru-axle spacing - 12x100mm up front and 12x142mm at the rear. That's the current gravel standard and it means compatibility with the vast majority of modern gravel framesets without adapters or fuss. Rotor attachment is predominantly Centerlock, which gives you consistent clamping force and quick rotor swaps - handy if you're running different rotor sizes across bikes or need to replace a warped disc after a hard season.

Freehub options cover the main drivetrains: Shimano HG, SRAM XDR, and Campagnolo N3W. Worth checking which body ships as standard on the specific wheel you're buying, particularly if you're running SRAM AXS or an older Campagnolo groupset. If you're changing drivetrains or need replacement setup parts, visit our dedicated Vision road wheels page for further Vision-specific fitment detail, and check our freehub bodies, skewers, and tubeless valves pages for setup consumables.

Internal width across the AGX range sits at 23mm or wider, which puts these wheels in the right bracket for 35c to 45c gravel tyres - the sweet spot for most mixed-surface riding in the UK. Running 50c rubber is possible on many frames, though clearance at the chainstay and fork crown is your limiting factor there, not the rim.

Metron, SC, and Team - What You Actually Get at Each Level

The Vision AGX hierarchy is cleaner than it looks once you break it down. At the top, the Metron carbon wheels are the ones you'd spec for gravel racing - deep enough rim profiles to hold speed on fire roads and smoother gravel sections, with hub internals and spoke counts tuned for low weight and fast freehub engagement. These are the wheels that reward riders who are genuinely trying to go quickly, not just comfortably.

Step down to the SC (Service Course) carbon tier and you're still getting a proper carbon rim with the same AGX profile optimisation - wide, tubeless-ready, and capable of handling the same tyre volume. The difference shows up in hub specification and spoke weight rather than rim quality. Engagement is slightly less immediate, and the overall build weighs a touch more. For most riders doing sportives, mixed-surface audax, or occasional competitive gravel events, the SC is the more considered choice - similar rim performance, lower outlay. Compared to Fulcrum gravel wheels at a similar carbon price point, the SC holds its own on rim stiffness and tubeless compatibility.

The Team alloy series is the one to look at if durability and repairability matter more than weight. Alloy rims handle rock strikes differently to carbon - they dent rather than crack, and a dented rim is often still rideable or truing-bench fixable where a cracked carbon rim is not. On flint-heavy North Downs bridleways or the rocky descent tracks above Dolgellau, that resilience is a real-world advantage. The Team is also the natural choice for bikepacking loads, where the combination of weight and vibration over long days is harder on components than a four-hour race effort. Hope gravel wheels occupy a similar space in the alloy category and are worth comparing if you prioritise UK-serviceable hubs.

To complete a Vision build, their Vision handlebars and Vision aero bars are worth a look - particularly if you're building a consistent cockpit setup for longer gravel events.

Keeping Vision Hubs Running Through a UK Winter

UK winters are genuinely hard on wheel bearings. Grit, standing water, and the chalk slurry you'll find on most southern bridleways from November through March work into bearing races faster than dry-condition riding does. This is where Vision's PRA (Preload Reduction Assembly) system earns its keep. Rather than needing to pull the wheel, remove the axle, and reset bearing preload with a cone spanner, PRA lets you adjust bearing tension via a threaded collar while the wheel sits in the frame. Loosen the 2mm pinch bolt, turn the collar by hand to remove any lateral play, tighten the bolt back. Two minutes in the garage versus twenty. If you're riding through winter, check preload every few weeks - a little lateral movement in the hub shell is your early warning sign.

Freehub pawls are a separate maintenance point that's easy to overlook. Mud ingress into the freehub body is a common cause of slipping under load - that disconcerting lurch when you put down power on a climb. A periodic clean with light degreaser and a fresh application of appropriate grease (check Vision's recommendation for their specific ratchet mechanism) keeps engagement crisp. Don't over-grease; a flooded pawl mechanism can be as sluggish as a dry one.

Rim tape integrity matters more in wet UK conditions than many riders expect. The TLR bead seat retention on AGX rims is designed to hold a tubeless bead securely, but if rim tape lifts at the valve hole or along a seam, sealant finds its way into the spoke bed and you lose pressure without an obvious puncture. Re-tape when the tape looks tired - it's a cheap fix. DT Swiss gravel wheels and Mavic gravel wheels handle the same conditions if you're comparing tubeless system reliability across brands. For wheel truing and crash replacements, check our spokes and nipples collection.