This bike could be very pleasant (fluid and very progressive pedalage), but the computer gives dees Wrong information about speed and time as well :: I ride effortlessly (dixit screen) at an average speed of 70-80 km / hour ; it costs me 77 years to return the package because it really is impossible to contact the service by phone or mail, despite the prompts. I urge AMAZON not to sell this brand: it was enough to simply replace the screen with a more reliable! : It is a shame that nepuisse give negative notes!