What I use for removing stickers from (collectible) books is lighter fluid (Naptha). I use it because you can soak the book in it, and it wont leave residue or damage the book (don't use around open flame!!!). It softens the glue.

But some stronger stuff is Goo Gone. I don't use this on books because it can damage the inks on the dustjacket. It is too strong. But I doubt it will damage the titanium frame.

The stickers are likely plastic, so these wotn soak through the stickers. You will need to get them under the edge of the sticker, then squirt the liquids on the glue as you peel back the sticker.

But another suggestion is to use a heat gun (a little stronger than a hair dryer).