I have a LHT with Alex Adventurer 26'' wheels. The rim width is 18mm. The bike came with 38mm (1.5 inch) tires, and there is room in the frame for 2.1 inch tires. But what is the widest tire that will fit on the rim?
There is conflicting info between Schwalbe's site (28mm to 50mm according to ETRTO)
and Sheldon Brown's site (25mm - 40mm)
Is anyone running 50mm (1.9 to 2 inch) tires on 18mm rims?