Joined: Jul 2015
Posts: 7,379
Likes: 3,221
From: NW Oregon
Bikes: 1982 Trek 930R Custom, '91 Diamondback Ascent w/ XT, XTR updates, Fuji Team Pro CF road flyer, Specialized Sirrus Gravel Convert, '09 Comencal Meta 5.5 XC, '02 Marin MBX500, '84 Gitane Criterium bike
you might find that a 16/42 is a bit tall for a 26"wheeled bike... that's a popular BMX gearing, and the smaller wheels on them lends a different final ratio...
if you've got them, give it a try, but i'm thinking it might be too tall... your use and terrain will be the deciding factor.