Shimano Front Mech - Which One ?

cheese_toastie

Hi, I am currently rebuilding an old Giant Rock mountain bike that I bought with a load of parts missing. I need a front mech, preferably a Shimano type but dont know which one to get.
The tube it clamps to is 34.9mm, the chainset I will be using is 28/38/48mm and it needs to be a single cable top pull type, the bike is 21 speed.
I was worried there may be different types for different size chain rings to be honest. Thanks in advance for any help or suggestions.

supersonic

Look for one that handles 48t chainrings - it usually will state. Something like an LX touring mech.

mister p

Something like an Alivio FD-M412 or an Acera FD-M360 should do the job.