Originally Posted by
chagzuki
If you're riding longer distances and like to pull on the handlebars then I'd say the Tern would ride far better. Bromptons are flexy and have an odd gearing system, fine for shorter distances. If you like comfort then you may find a Tern harsh without some form of rear-end suspension, a sprung saddle etc.. I like Brompton's rear suspension.
I've done a lot of riding on regular steel bikes with skinny tyres so I'm coming at this from that perspective rather than someone who is relatively new to riding and looking for a convenient commuter. I love the practicality and fold of the Brompton, and the weight and use of components on the Tern X10. I'll be doing some commuting and light touring on the bike so I think I'll go with the Tern. I'll put a Brooks on it, get an extra set of beefier wheels for touring and get lower gearing by using a smaller front ring. The Tern's font luggage carrier also fits my Ortlieb front bag