The Metron 81 SL is Vision's triathlon and time trial wheelset for rim brake bikes. With 81 mm carbon rims and more than 100 pro podiums since its release, it is built for holding speed on long, flat efforts.

Highlights

• Full carbon 81 mm deep, tubeless-ready clincher rims, 19 mm inner width
• Laser-etched micro-dot brake surface for predictable braking in all weather
• P.R.A. hubs with bearing preload adjustment, six sealed cartridge bearings
• 2:1 aero bladed direct-pull spokes, 16 front and 21 rear
• Shimano HG freehub fitted
• 1,740 g per pair without QR (Vision)

Proven aero speed

Vision developed the rim with CFD analysis and wind tunnel testing for speed and stability in crosswinds. The P.R.A. (Preload Reduction Assembly) hubs set bearing preload with threaded clamps, so you can adjust them without taking the hub apart.

In the box

QR-93 quick releases, carbon rim brake pads, a tubeless kit, a spoke protector and a wheelset bag.

Compatibility & fit

For rim brake frames with quick-release dropouts. The Shimano HG freehub takes Shimano 10 and 11-speed cassettes; Vision also makes SRAM XDR and Campagnolo freehubs for this hub. Use only carbon-specific pads. Our workshop can fit tyres, set them up tubeless and adjust your brakes to suit.