Mark_H
Husqvarna
AA Class
......................I have a hard time replacing a perfectly good working battery, but ....... it will drop about 5-6 lbs. quite high in the bike.
I could not imagine ever replacing a perfectly good battery unless I had another use for it.
Doing the calculations, cutting 2 Kg on a 186 Kg (wet) bike is going to be a total saving of around only 1 % of overall, and I would suggest that given two bikes, one with and one without the standard battery, you simply could not tell the difference.
Even saving 4Kg on swapping the mufflers out is debatable whether you would actually notice the difference or simply perceive it.
Furthermore, you guys have already added loads more 'high' permanent weight to the bike in the form of GPS and Mounts, Racks, Handlebar Guards, Lights, Seats etc......Also the extra lower weights, Skid Plates, Tool Tubes and other stuff.
Then you go riding with Tank Bags, Panniers and Rack Bags, all packed with lots of 'just in case' equipment and carrying extra fuel too.
Come on, be realistic, is changing out a perfectly good battery to save 2 Kg a viable option - I don't think so.
If you want a much lighter bike, go buy one.
If you want to reduce weight on your TR650 then you can...
a) Stop adding stuff and; b) Lose some of the excess baggage.
IMHO, swapping a perfectly good battery to save 2 Kg has to be a last resort, wearing a lighter jacket might be more cost effective.