My TerraTrike tour came with 20 x 1.25 tires. I was curious if there are any issues with putting 20 x 1.75 tires on those rims? Would that destroy the rim, and/or lower performance? It's a pain to find 20 x 1.25 inner tubes locally. I can find 20 x 1.75 inner tubes locally no problem. Would this be an issue? Thanks.