I've recently spent £22 on a new gearbox input shaft for the ugly MZ ES 250. The original had lost a tooth, making things noisy and a little random in the gearchange department. Whilst hunting through my MZ new old stock boxes for a bit for an ETZ I came across three very familiar looking gearbox shafty things. Oooh, they all appear to be four speed ES input shafts, NOS. Arse.