Ok, you may be onto something. At first I assumed you were the guy in this post:viewtopic.php?f=10&t=69740&start=75
with a heavier than expected Addict, but in reality you are two different people with warranty replacement Addict RC framesets with ~920g/380g weight.
Based on this guy's 58cm R1viewtopic.php?f=10&t=81570&hilit=addict+R1
we should be expecting weights around ~840g/320g (I'm assuming the two RC frames weighed were smaller than 58cm).
and based on almost every previous generation Addict SL/R1, we should be around 810g/300g.
So there are a few explanations
1. When the new generation of addicts came out, the framesets got about 100g/80g heavier without telling anyone/advertising so.
2. The addict RC is heavier than the R1
3. Warranty replacement frames sent out were one-offs that were heavier than advertised due to a inavailability of stock because of a transition to the Foil framesets
I had a 2010 Addict R2 that was damaged in an accident and replaced with a new R1 frameset about 9 months ago. I haven't weighed either frameset, but made the assumption that I was indeed getting a lighter bike as a result.
I'm not going to take apart my entire bike just to hunt down 150g, but at the very least I could check the fork weight to see if I've got a heavy fork too.
Are there any 2010/2011 Addict owners who have verified weights of the frame/fork?