The Shimano WH-MT620 is a trail-focussed tubeless-ready front wheel built around a wide 30mm internal rim, Boost spacing and Centerlock disc mounting — everything a modern trail and enduro rider needs in a proven, reliable package. Designed for riders who want tubeless performance without the premium price of XTR, the MT620 delivers confident handling and durability across demanding terrain.

Highlights

• Wide 30mm internal rim: Maximises tyre support for widths of 2.25–2.6", improving cornering stability and reducing the risk of burping tubeless tyres.
• Tubeless compatible: Seals up for a tubeless setup to lower rolling resistance, reduce puncture risk and allow lower tyre pressures for better grip.
• 110mm Boost front axle: Wider hub flange stance improves wheel stiffness and traction, particularly on technical climbs and aggressive descents.
• Centerlock disc mount: Spline-and-lockring interface for precise, secure rotor fitment with consistent braking performance.
• 24-spoke J-bend build: Stainless steel J-bend spokes with brass nipples in a 2-cross lacing pattern — simple to true and durable over the long haul.
• Welded rim joint: Clean, strong join for consistent tyre seating and tubeless bead retention.
• CBN precision-machined bearings: Cup-and-cone hubs with labyrinth and contact seals keep dirt and moisture out for lasting smooth roll.

Construction & Rim

The MT620 rim is an aluminium alloy hooked-bead profile with a 30mm internal width and 34.7mm external width. At 19.8mm deep, it strikes a balance between stiffness and weight. The welded rim joint ensures a uniform bead seat for tubeless setups. A standard Presta valve hole (6.5mm) is compatible with most tubeless valves.

Hub & Bearings

The front hub runs Shimano's cup-and-cone bearing system with CBN (Cubic Boron Nitride) precision grinding for a smooth, low-friction roll. Labyrinth and contact seals protect the bearings from trail grit and water, extending service intervals without sacrificing ride quality.

Compatibility & Fit

Axle: 15 x 110mm (Boost thru-axle). Brake mount: Centerlock (IS adapter required for 6-bolt forks). Rim diameter: 27.5" (584mm). Compatible tyre widths: 2.25–2.6". Tubeless setup requires rim tape and tubeless valves (sold separately). Spoke count: 24.