I’ve recently bought a medium (17.5inch) Specialized Rockhopper  for my son ( a 2014 29″ Model)

He’s interested in larger tyres 2.4’s Specifically Continental X-King and Mountain King which reviews say come up more like 2.25

The Tyre clearance on the rear  looks a bit tight for a genuine 2.4

Does anyone have this frame and tried it with a 2.3.or 2.4 inch tyre?

Cheers

Royston