Originally Posted by
FrozenK
I'd look at something like the Shimano Touring cranks -48/36/26- rather than road cranks. .
Yep.
Originally Posted by
Raigoki
Hi. i'm not familiar with the BCD. but currently, my crankset is an Alivio with a 22-30-40t.
Sounds like it could be a Alivio FC-M4050 with a 96/64 BCD
The Alivio FC-M4060 has 26-36-48 tooth chainrings and a 104/64 BCD
Bigger chainrings means a new front derailleur.
50 or 52 tooth road chainrings means you'd need a road front derailleur
Road front derailleurs don't work well with mountain shifters
With a 26-36-48 mountain/trekking crankset you would need a new front derailleur but you could keep your shifters
With a road crankset that has 50 or 52 road chainrings, you would need a road front derailleur and a shifter for a road front derailleur.
Shimano specifications:
http://productinfo.shimano.com/#/spec/2.3