Here is my interpretation of the stats. I don't know if it is correct, but my experiences lead me to believe it's something like this.
Endurance:
As Anonymer says, Endurance affects the green bar, which is how long the rider can last in a long stage, and also how effective he is at the end of it. It seems the yellow and red bars goes down quicker the less green there is left.
Resistance:
Yellow bar. The way I think it works is this: FL, MO, TT etc. says how fast a rider can go in that terrain/discipline on a certain effort. Resistance dictates how long he can hold that effort. So there is no use in having a high MO and low RES, because then you can go really fast for just a few kilometres.
Recovery:
Obviously how good a rider can handle stage races. I don't know if it affects anything else than how much green bar a rider start the stages with. Anyone who knows more specifically?
And I have a question as well: Has Accelration got anything to do with how fast the red bar diminishes during an attack, or is the ACC stat just about how fast you can attack and/or get up to speed in a sprint?
Squire wrote:
Endurance:
As Anonymer says, Endurance affects the green bar, which is how long the rider can last in a long stage, and also how effective he is at the end of it. It seems the yellow and red bars goes down quicker the less green there is left.
Well, for me it seems the same about yellow/red bars. There were lots of times that I sent a rider into the breakaway, and when it was caught, the rider would struggle on flat sections on speed 42~47km/h (speed which he would never struggle in flat sections) and even hurt (heart > 167) on descents!!! I couldn't understand this, but recently I started to think that this 'unnatural struggle' had to do with the low green bar.
Also agree with Resistance and Recovery interpretation. Recovery can play a vital role in TTs in the last week of GT, for an example. The amount of green bar the rider starts with can make a 70 TT rider beat a 73, for example, I believe. Last, about ACC, agree with cactus-jack.