Bike weight different from spec sheet I just bought a brand new Canyon Endurace SL from the Canyon factory and started ridding it for about 10 days. On the spec sheet is only 7.6 Kg so I was pretty confident when a friend lifted it to check the weight. My ego and pride scatter to pieces when he said it was rather on the heavy side. And he was right, it does feel way heavier than I can recall.

Back home I get the balance out and check it for myself, and it displays something like 8.7Kg.

So where does all this extra weight comes from? My pedals are less than 500g a pair according to Shimano, a 40g bottle cage, two 35g lights for safety and a speed counter on the from rim (no more than 40g I assume). That doesn't sum to more than a Kilo. Can water get caught in the frame and/or rims after a wet day or a thorough wash? Did Canyon deliberately lie on the specs? Can my bike sneak out and feed itself over grease and power gels overnight?

I guess it's just my brain playing tricks on me...
There is some variance in the manufacturers' claimed weight. Due to slight differences in the manufacturing process of the individual components, it is possible that the claimed weight was legitimate. If they weighed the smallest frame available and mated it to the lightest set of the specified wheels, the lightest saddle, etc, they could produce a bike that is lighter than anything that would come down the normal assembly line. Many brands specify that they don't list weights because of these variations. Some brands actually advertise the weight but don't specify the details such as frame size, was the frame painted, was bar tape installed etc.