Thanks for starting this thread jordanjustgo. I too did 25miles yesterday (wooohoooo for us!! ) and as well as a numb bum ended up a sore right hand and arm. I did try and focus on 'form' and keeping my arms relaxed and slightly bent but still the soreness happened, maybe it's a 'noob' thang. I have straight riser bars and ergonomic grips but will look into bar ends and new gloves.