Tour de France 2013

I read Fwume's comments as :

'Come on Berto, you're clearly not up to riding fast with the big boys, wouldn't it be better to slow down and ride within your limited capabilities and accept you're never going to win without drugs? You might hurt yourself.'

I believe the kids call it a dis.

IMO it wasn't a diss, his wet 'little more care next time' tweet was softy walter stuff.