I've had the two side pieces of the Tank Protector film on my Bonnie for 3 years now and all 3 pieces on my Yamaha FJR for 9 years. It is practically invisible, most folks don't know it's there until I point it out. I have never had any issues with it peeling off or discoloring, yet it protects the gas tanks from knee scuffs, zippers and everything else.
You most likely need the 3 piece Tank Bag kit to protect the Triumph decals on your gas tank. And stop laying your jacket over the tank.
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