[jeremyh007]

the new chain i bought is 120 links. how long do i need it to be for a 14/42 combo on my 04 749?

 

[ST3S]

Try this site. I typically trim my chains to fit while on the bike.

http://www.gearingcommander.com/

 

[DukeDesmo]

According to Shazaam, 98 links, however I would fit everything and then cut to suit;