I run GC 4.6s on two different wheelsets and use the tubes that originally came with my 3.8 Surly Nates. Never had an issue filling them out rock hard to set the bead. You should be fine.Just picked up a 2015 FatBoy with the 4.6" Ground Control tires. Running tubes for the time being, is it true you can use a 4" tube? Flatted last week and tried it but it never seemed to fill the tire. Do I need to pump them up to 20psi at home to stretch? Thanks in advance.
Don't run 4.6's. Run 3.8-4.2's. You're welcome.
Hell no. Wait...maybe. If I had the opportunity I would. But my 26's are just fine. So I guess it's ok.i suppose you want them to switch to 27.5 too ?
The answer is always Jumbo Jim.
Which ever width. No need for anything else. Except for snow.