My vtr250 currently has a mismatched pair of (questionable) tyres and I'm looking to upgrade them as part of my next service. I would like a sticky set of tyres that handle well; I'm not too worried about wear rate etc. It seems that the vtr 250 had bias tyres from factory, and from what I understand it's usually recommended to fit the same type of tyres as replacements owing to the fact that it's what the frame etc was designed for.. I'm just curious how important this really is, as it seems that the stickier/better tyres from any given manufacturer are usually of radial construction. Has anyone here put radial tyres on a vtr250 or other small bike that had bias tyres from factory, and if so, would you care to share you experiences? If I stick with bias construction it seems I'm looking at bt45's or sport demons, but going radial opens things up to bt090 (bt003?) and others.