One thing to note, Ergon large grips plus the Nashbar trekking bars do not allow you to fit a separate shifter and brake onto the bar without cutting the Ergon grip down somewhat. That's the issue I ran into on my refit. I trimmed a little off the grips with a hacksaw and cleaned up the cut edge with a Dremel and made everything fit however and it doesn't feel cramped. The large grips are probably the best fit if you're a man and have a normal sized hand.