I may be wrong but from what I can see the standard parts on my bike are not on their site, lets be honest,if you had standard onza forks made from lead and you broke them you will probably just replace them with echo urbans or similar.The most important parts (i think) for me to change is the forks,cranks and wheels.But If I can see that by changing the wheels for example will only save me 100g well then I wouldnt part with £200.I know its worth changing the forks as there is a good weight saving for the money pound for pound,but it would be interesting to see with other parts before spending the money.