hello not a big fan off moding the bultacos aprt from moden foot pegs i like them standard. but as above it's what you want i had a bultaco sherpa 199b it was moded didn't like it at all so i sold it i was lucky some 1 bought it for a good price. on that 1 the head stock had been done the S/Arm had been made longer and brought forward. also had honda wheels on it with R/H hub dint handle any better then my standard 199B not trying to give you a hard time just my option. am sure there will be lots more advice given. there's alot you can do to the bike with out moding it to make it ride better. like magical springs and caps on the forks rockshocks on the rear good carb set up and have the exhaust repacked. all helps make the bike run and ride better. hope this has helped.