i thinking about buying a onza zoot. the spec is the same as the one on super cycles >http://www.supercycles.co.uk/site_details.asp?ProductID=676< but now it has single speed with tensile chain tenchiner, magura louise front disc brake and drm tyres. im only asking thing because a friend is selling his and im thinkging about buying it he wants 300 for it , is that resonable or not thanks