I know I should go home and check my posture etc before swapping grips, but I know I'll want to anyway so here goes.

I find the stock Swift grips quite painful. Had the same experience with the stock grips on my hybrid, and replacing them with Ergon-type grips saved me.

Of course the Swift has a narrower handlebar, and I have also installed a front derailleur so there are twist shifters on both sides.

would something like the Ergon GR2 Composite Race Grips Twist Shift Small do the trick? I think I could move the shifters in a half inch or so. would love any other recommendations. the grips from my hybrid are just too long to fit, but I think Ergon has "small" sizes