Recently got back into cycling after a few years gap and opted for a Scott Sportster P2 for commuting to work which has Alex SUB 700C rims (hybrid bike, sorry!!) but want to do some off road rides. I've heard 29inch tyres fit........and I've also heard that they dont!! Can anyone help as the 700 x 37 panaracer cindercrosses I have purchased just dont seem wide enough??