I bought a vintage racer in 2018 with the intention of fixing it up, repainting it, etc, as it had clearly rusty parts and exposed steel, and I ended up not bothering for one reason or another, but it was every bit as zippy and manoeuvrable when I had an accident on it last year that meant I had to chuck it in the tip. I shouldn't brag or whatever but I remember this little speed counter thing saying I was breaking the limit a few minutes before the crash.