I've been looking for suitable road-oriented wheels to swap onto my new Senton 4x4 to preserve the stock tires, since most of my lunchtime bash sessions will be on pavement. I'm very new to rc trucks so I'm still learning, and it seems that finding suitable wheels that won't skew the gearing too badly may be difficult. Also, these wheels use a 14mm hex, which seems like a very odd size. Here's the stock wheel and tire specs: Black nylon wheels, 14mm hex hub 2.2" (56mm) outer bead, 3.0" (76mm) inner bead dBoots Fortress multi-surface tires with foam inserts 1.7" (42mm) wide, 4.1" (104mm) diameter How hard would it be to swap to a more standard hex hub each time I switch wheels? Also, goes without saying but I'd prefer a wheel option on the cheaper end of the spectrum.