Mavic Allroad Pro Carbon Road+ 650b Wheelset

The Mavic Allroad Pro Carbon Road+ 650b Wheelset is built around a simple premise: not every ride stays on clean tarmac, and your wheels shouldn't pretend otherwise. The 650b format is a deliberate choice — a wheel diameter that sits between a standard road 700c and a mountain bike 29er, giving you quicker handling than a larger wheel while rolling over rough surfaces with more composure than a compact 650c setup. On broken country roads, hardpack gravel, or mixed-surface routes where the asphalt runs out mid-ride, that geometry difference is something you feel in real time.

Mavic has been building wheels since 1889, and their approach to the allroad category reflects that institutional knowledge. This isn't a road wheelset with a gravel sticker applied. The carbon rim construction keeps rotational weight low — which matters more on undulating, punchy terrain than it does on a flat road circuit — while the tubeless-ready interface is designed to handle the varied demands of mixed-surface riding. Run lower pressures, gain traction on loose corners, absorb more road chatter without the constant background noise of a tube under stress.

Mavic builds and assembles their wheels in-house, with consistent spoke tensioning and hub quality that reflects decades of production experience. That heritage shows up not in marketing language but in the way these wheels perform over a full season of hard, varied riding. The Allroad Pro Carbon Road+ is engineered for riders who put in real miles across real conditions — the kind of terrain where reliability and versatility carry more weight than marginal aerodynamic gains.

Mavic Allroad Pro Carbon Road+ Specs at a Glance

• Wheel Size: 650b (27.5")
• Rim Material: Carbon
• Tire System: Tubeless Ready (Road+ compatible)
• Intended Use: Allroad / mixed-surface riding
• Drivetrain Compatibility: Shimano / SRAM
• Color: Black
• SKU: LP8942100
• Manufacturer: Mavic

Design Benefits

1. Carbon Rim Construction: Carbon rims reduce rotational mass compared to alloy equivalents, and on terrain that constantly demands acceleration and deceleration — punchy climbs, technical descents, rolling gravel — that difference accumulates across a long ride. Lower rotational weight means less effort to maintain momentum when the road surface is working against you.
2. 650b Wheel Diameter: The 650b format is purpose-built for mixed-surface riding. Paired with wider, higher-volume tires, it delivers a contact patch and rolling behavior that a 700c wheel simply can't replicate at equivalent tire widths. You get the ground clearance and compliance you need without giving up the snappy handling that makes a road-oriented geometry feel alive.
3. Road+ Tubeless System: Mavic's tubeless interface is designed to seal reliably and work with the Road+ tire ecosystem — a format that pairs 650b rims with tires around 38mm wide to approximate the overall diameter and gearing of a standard 700x25c setup. That means you can run meaningful air pressure reductions for added traction and comfort without recalculating your entire drivetrain.
4. In-House Assembly: Mavic designs, builds, and tensions their wheels under one roof. That level of vertical integration allows for tighter quality control at every stage — from spoke bed machining to final tension checks — and it translates to wheels that arrive correctly built and stay that way through extended use.

Final Take

The Allroad Pro Carbon Road+ 650b is for the rider who refuses to plan routes around road quality. If your weekends regularly include gravel sectors, rough tarmac, or routes that cross both, this Mavic tubeless wheelset offers a considered, technically honest answer to mixed-surface riding. It does the work without asking you to compromise.