there is a site, www.supercycles.co.uk i think or maybe .com, sells onza parts and other stuff, there are some good wheelsets on there for that bike, get ahweels with sealed bearing and the rear wheel will be under 19" size rather than 20" due tyo the fat tyres, pedals any will do really maybe onza vp of that site, tyres get maxxis creepy crawlers (reart tyre classed as 19" aswell) hope this helps.