Something radical from Mason Cycles: the new ISO

A drop bar steel bike to tackle steeper, tougher terrain, snow and sand

The new Mason ISO is designed to take you further off road, while still allowing you to ride further and faster. The ISO’s frame and fork have the clearance for 2.4 inch 700c tyres or 2.8 inch 650b. That’s a serious amount of rubber, letting you tackle steeper, rougher, deeper terrain.

It’s a gear up in off road capability from Mason’s Bokeh all-terrain machine.

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Paul Norman

Paul started writing for Cycling Weekly in 2015, covering cycling tech, new bikes and product testing. Since then, he’s reviewed hundreds of bikes and thousands of other pieces of cycling equipment for the magazine and the Cycling Weekly website.

He’s been cycling for a lot longer than that though and his travels by bike have taken him all around Europe and to California. He’s been riding gravel since before gravel bikes existed too, riding a cyclocross bike through the Chilterns and along the South Downs.