Lviv 650b/27.5″ Carbon Monster Wheels


Backcountry Adventure wheels designed with speed, strength and reliability in mind £100 from every wheelset will go to helping Ukrainians affected by conflict🇺🇦


This wheelset is designed for backcountry adventure riding or heavyweight touring on 45mm/1.8″ or larger tyres. When designing these wheels the focus was on strength and absolute reliability.

32 Sapim Race spokes, with Trailmech XCR hubs, and our own T700/800 rims make these wheels virtually indestructible. Come the apocalypse, you’ll be glad these are the wheels you invested in.

All of our wheels are named after cities and rivers in Ukraine, out of respect to our Trailmech colleagues and all Ukrainians affected by the conflict. We chose Lviv for our 650b wheels as a city that close to Rob and Andrew’s hearts – stuck there for a time in 2008 Lviv showed us hospitality far from home.


Our rims are made from a high quality mix of T700/T800 carbon fibre, for the perfect mix of compliance and stiffness, lightness and strength. With a 35mm external width, 30mm hookless internal width, and 25mm depth these rims are super-strong without compromising on weight


Our Trailmech hubs are some of the finest XCR hubs on the market, and with their patented Vortex ratchet engagement system power transfer is almost instant offering between 6 and 7.2 degrees of travel. It’s not only quick, but also strong – the unique vortex design means that the more force you put through the pedals, the harder the ratchet engages reducing the risk of slippage.

As with all ratchet hubs, the sound of the freewheel is a distinctive (and loud) mark of quality so be prepared to get used to that ‘angry bee’ sound, and wonder how you lived without it before.

Inside these beautiful CNC alloy hubs, you’ll find high-quality Japanese EZO bearings for high efficiency and low maintenance.

In the wild

These are wheels designed to be ridden and challenged, built for big days and bigger climbs. Check out the gallery below to see our wheels in the wild, doing what they do best.


  • 25mm deep T700/800 Toray carbon fibre rims
  • 30mm internal hookless rim width
  • 35-65mm tyre compatibility
  • Trailmech XCR front and rear hubs
  • Six-bolt disc rotor mounts
  • Sram and Shimano freehub compatibility
  • Front-wheel weight 834g 
  • Rear-wheel weight 956g
  • Combined weight 1790g

Weights given for 12mm thru-axle format, and vary slightly for 15mm/QR


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Lviv 650b/27.5″ Carbon Monster Wheels
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