When I bought an Italian import Honda CB 500,the dealer kindly attatched horrid MPH stickers to the speedo. I bought the Motrax gadget before collecting the bike. It took much longer to remove the literally tacky stickers than to fit the shiny blue thing twixt speedo and cable! Has been working perfectly for just over a year now . I am thinking of getting another Italian (Yamaha TT350), And will not hesitate to spend another £30. Highly recommended especially as you don't have to attempt mental metric/imperial calculations at awkward moments such as when running low on petrol or approaching a Gatso.