Originally Posted by
mconlonx
Telling: Surly LHT -- when they went for a smaller wheel size on the smaller models, they opted for 26" wheels, not 650b.
Surly has offered 26" (ISO 559) rims on their small frame LHTs for quite a while and predate the current 650b fad. I assume they did it to achieve adequate toe clearance on small frames without distorting the geometry too much. The same reasoning Georgina Terry used for fitting 24" front wheels on her small bikes intended for women.