Just wanted to share my experience of fitting Oxford heated grips. I'm not particularly mechanically minded, so if I can do it, anyone can!
I spent quite a while on forums and watching Youtube videos about fitting the grips and then I spent some time figuring out how I wanted them orientated and where to run the wires. If you use superglue as Oxford recommend, then you want to get the grips in the right position first time and rather quickly (in a few seconds)!
Getting the old grips off was a doddle. I used a screw driver inserted from the bar end of the handlebars to loosen the grips from the existing glue. The left came off in tact. I had to cut the right off as it moved with the throttle slider when I was trying to twist it off. Whatever glue had been used previously came off cleanly and no cleanup or sanding of the handlebars was required.
I spent a while dry-fitting and experimenting with the throttle-side grip which slid on with little effort. The lefthand grip would not go on. The diameter looked too damn small so I gave up after an hour of trying and tried again the next morning. I'm sure I'd read somewhere about heating the grips up making them expand which allows them to slide on easier, so I wired them up and turned them on 100% for 10 minutes. The lefthand grip slid on hot fairly easily with a little help from some WD40 to lubricate. Didn't use glue on the left as I cant get the bugger back off (!) but did use superglue on the right as I didn't want it sliding around whilst riding.
Wiring was straight forward, it just takes a little thought and some cable ties. I went straight onto the battery terminals but I'll change that when I get it clear in my head how to wire on an ignition circuit. I wrapped the molex plugs with insulation tape to protect from rain.
Hope that helps someone. I'd highly recommend heating them up before fitting (you need to test them anyway, right?) and some careful thought about positioning. Have used them around town and they feel great -- 100% is too much after a while. Hopefully they'll cure my numb fingertips!
David.