To get faster you often ride with those faster than you. But on an old clunker you've got no chance of keeping up, let alone hanging on by the skin of your teeth as us often the case when you progress into a faster group.
Also safety aspect - if you're sitting front or mid pack and have an emergency due to kit not being up to scratch (dropped chain, jammed deraiileur) you will not be popular to say the least ,especially if someone ends up injured.
Also safety aspect - if you're sitting front or mid pack and have an emergency due to kit not being up to scratch (dropped chain, jammed deraiileur) you will not be popular to say the least ,especially if someone ends up injured.