Definitely play with bike fit before buying anything. Make sure that you can balance yourself for a few seconds, while taking your hands off of the handle bars and keeping your feet on the pedals. If you can't, move your seat back a bit and try again. As you move your seat back, you may have to move your handlebar grip area backward to match. Getting the bike fit right will make a much greater difference than bar ends and new grips. When properly adjusted, I can ride a flat bar bike for 20 or 30 miles without any hand numbing issues. When the bike is not right, my hands can go numb in less than 3 miles.