Finally bit the bullet and bought some Oxford Hot Grips for the TB, been thinking about it for a few years but after several recent cold rides and then trying TigerFox's heated grips on his Tiger I went and bought a pair. Yes it's mid winter here in NZ.
I did a search on the site and found a useful thread on installation tips, thanks to IrlMike and lovecuba plus a couple of others on a particular thread which was very useful in preparing me what to expect.
Overall they were easy to put on, I squirted a bit of petrol down the old grips and they came straight off, no trouble.
In fact I was so pleased with them I went out two days later and bought another pair for my CB1300 and have just put them on today.
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Ride on !