The guy you are looking for is John Carson of Carson Racing out of Weare, NH. His number is 603-529-2529. He does clutching and chassis set-up along with parts and accessories.
Don't get me started on A-1 Sports. I bought a Vector from them last year. High prices, no discounts. I took the Vector to them this fall to have them install the clutch kit to get rid of the rattle before I sold it. They called after a couple of days to say it was ready to be picked up. Brought it home and while washing it discovered the clutch side panel screw just sitting in the hole, not tightened down and what looked like caustic burns from a small chemical spill in the plastic instrument surround.
A friend had them make a mess of his kids ZR 120 while installing the power up kit. It came back with a pool of oil under the motor and washers and bolts lying around loose. They are a bunch of incompetant dopes!
They have been bought by Concord Honda and are moving out of what they currently call a dealership to a new location. So, hopefully, with new management and a new location they can change their reputation.