Yes , I think that they came fitted with 383mm Ohlins remote reservoirs . I am looking for a pipe off a '78 CR390, to put on my '77 model, if anyone has one laying around . The '77 pipe has a big bulky muffler section built into the pipe (that burns your leg & the seatcover), where the '78 has a narrow stinger section with a seperate muffler on the end.