I recently purchased an Ironhorse maverick with 19.5' frame. I'm 5'10 and have about 1' (at the most) of clearance between the frame and the 'jewels'. I won't be doing any major trails, just some light trails and commuting. The bike feels good, but i'm a bit worried because if i fall down that the frame is too big? Should i return it and try to get a 17.5 frame instead ?