Hey, i see allot of topics about "what is best Mod or Stock", so i thought i would make this topic to show what I think the pro's and con's are.  Mod  Pro's Great stand over clearance Very "flicky" rear end good for gaps Cheaper parts Stronger in the long run Good for side hops, no derailleur problems  Con's Can be less comfortable Less parts available Not so good grip on small wheels  Stock  Pro's More grip on the larger wheels Can be more comfortable Good balance and stability Less chavs  asking you to go and do a barspin or grind something More parts available  Con's Not as reliable Many parts to break More expensive Derailleur can be a pain, easy to hit on things Rims are easier to get flat spots dents or what not Quite substantually *sp* heavier  Add anything else you think may be helpful to others.  Jacko