Shimano alivio m4000 top swing 9 spd front mechalivio has been used on trekking bikes for many years and now shimano have released a dedicated trekking groupset the new alivio trekking components are now slimmer quieter and offer a smoother ride than ever before the first thing that stands out at the alivio mountain bike groupset is the new design compared to the previous groupset it has a more aggressive look and a low profile design the new front derailleur gives more tire clearance for bigg