What I am getting at is losing 4kg from a 8kg bike (theoretical) is halfing it's weight whereas losing 4kg from an 80kg person is not really going to be felt.
And if you raced against a person who was exactly your equal but riding a 15lb bike you would then be looking to reduce that 25lb bike to match theirs. Guessing you mates on their flashy bikes are just slow.
Yes, well losing 26kgs is clearly different!
What I am getting at is losing 4kg from a 8kg bike (theoretical) is halfing it's weight whereas losing 4kg from an 80kg person is not really going to be felt.
And if you raced against a person who was exactly your equal but riding a 15lb bike you would then be looking to reduce that 25lb bike to match theirs. Guessing you mates on their flashy bikes are just slow.