Combining MTB geometry & parts with road bike wheels & tyres has always been the case with the R-7 line up–but the new Plus tyres takes this to a new level. These high-air volume/low-rolling-resistance tyres are perfect for dealing with ' All Surface' commutes & rides. The Portobello features massive 650b x 47c tyres to smooth out the road chatter. These deep profile tyres, give the same rolling diameter as 700c x 28c tyres but the extra air volume make them super comfortable & pinch puncture resistant.A custom rear dropout mounts the hydraulic disc brake caliper inside the rear triangle, clearing the way for any rack or mudguards that may be required.