VDO presents a new product line Â- the M series VDO M4: compact housing but a large display The VDO M4 is a model specifically aimed at the target group of road bike riders & impresses with itÂ’s small light structure & easy-to-read portrait-format display with large digits. This display always simultaneously shows three &40;VDO M4&41; functions so that all key data is always in view while riding. All the important bike functions such as the speed average speed maximum speed ride time ride distance total distance time & temperature are stored within the VDO M4Â’s small computer housing. The integrated roadbook function is a particular highlight. This separate distance counter &40;which counts forwards or backwards&41; can measure individual section distances during a ride so that roadbook routes can be perfectly followed. The VDO M4 also impresses with a fully-fledged altimeter which combines all key altitude measurement functions to offer everything cyclists could desire. The integrated features include current & maximum altitude current maximum & average gradient uphill altitude gain & loss maximum & average gradient downhill annual altitude difference & maximum annual altitude for bike 1 & bike 2. The barometric altitude function can be calibrated by entering the altitude or air pressure. To ensure that all functions can still be read in poor visibility conditions or darkness the VDO M4 also comes with a display backlight. The VDO M4 is the ideal companion for bike rides out in the hills & provides all the key data. The new wired models VDO M4 is small chic & highly functional.