I was 123 kg when I purchased by Giant TCR Composite, dropped to about 94 kg (from memory) while I had it, and no problems with it at all. I was about 123 kg, or a bit heavier, when I
**** the MTB, which I rode through Glenrock to and from work most days. I think I was about 95 to 100 kg when I
**** the Ti Argon.
I am now 110kg

, and I too find the extra mass a huge drain climbing long hills but not short punchy hills. I am about to ride the back way up Carnley Avenue on my way home from work tonight on the aforementioned track bike - now that is one tough little hill, especially without eating since breakfast at 3Beans at 7am this morning.