TW Leather Grip Mass (25mm)
Here is the latest info for both 25mm wide TW Leather Grips:
25 mm x 1.3 mm = 32 grams
25 mm x 1.5 mm = 36 grams
These are for the full length.
I just wrapped a PK 5G (4 1/2") grip with a 25 x 1.5 TW leather grip (overlap so the grip is flat) and it added a heft 28 grams to the static weight. I only had a 4" piece remaining.
If you want to preserve the true grip size of your racquet, go with the thicker leather grip. You can still feels the bevels really well!