think it was 2yrs tbh, have seen quite a few on ebay over the years so there are a few in the UK. I have always lusted after one but feel now that bikes have come on a long way since then so for me to get out of it what I’d desire it would need a new front end and rear shock, better tyres, brakes and also a load of weight reduction. Possibly a mild tune up too…. 34bhp on a light 2T is gonna be fun but I am sure it would be relatively easy to get 10bhp+ more with minor mods. All are possible, but not financially viable unless you were to keep the bike forever!