Challenge Grifo Comp Cyclocross Tyre

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4/ 5

Good for forest and grass, probably too soft for long hard gravel rides

After buying aero wheels, my stock wheels were left somewhat orphaned without tyres. Officially, my frame only supports up to 32mm, but these 33ers still fit smoothly on wheels of 20mm internal width. The rubber is clearly on the soft side, giving good grip on grass and forest roads. For your winter commuter or long gravel rides on harder surfaces, you're going to be better off with a slightly harder and more durable tyre. Fitting the tyre went smoothly, bear in mind that your standard course tubes may not go up to this thickness and you won't be able to put them on tubeless.