Saddle fit 27cm vs 30cm lenght - what setback?

[ASTANA]

 

Hi

 

If my setback (behind BB) is 6cm with a 27cm long Selle italia , and I want to fit a Fizik Arione 30cm length - what should my setback be ?

 

Consider that all 3 cm length difference in the Arione is not all just to the nose - I guess its like 1cm at the nose longer that the selle italia and +- 2 cm longer at the back - looking at pictures comparing other selle italias with the Arione.

 

So my conclusion - if its 1 cm longer on the nose of the saddle then my setback should be 5 cm (behind BB)

 

Anyone have experience with Fizik Arione setup ?

 

Obviously I will adjust according to feel later on if everything does not feel well.

 

See this site for more info :  http://www.bikesportmichigan.com/reviews/arione.shtml

 

thanx

 

ASTANA2010-03-08 07:35:26

[AndreZA]

Not that complicated. Just sit on the thing, find the sweetspot and use a plumbline to measure your knee over the pedal exle.