Is the TI finish all scratched up?
If not there is no need to use a ScotchBrite pad. If it is all scratched up then for brushed TI all you need to use is the maroon (maybe some call it red?) ScotchBrite pad 7447, but once you start on the bike you'll have to do the whole bike otherwise it won't match, and you have to rub in the direction of the grain. If all you have is minor swirl type of scratches I would try a lessor aggressive approach and use the green heavy duty ScotchBrite pad found in grocery stores or Walmart, if that doesn't remove it than try the 7447 pad. Make sure you cover your decals with a low stick masking tape.
Back to not being scratched up, in this case all should you need to do is to get Meguiars Ultimate Compound and rub it in the direction of the grain. After that is done then finish up with a non abrasive wax. Again cover your decals with masking tape.
You can give your TI bike a polished look but I wouldn't do that because then you would be fussing over the tiniest of scratches due to the mirror like finish, but if you want to put in hours of elbow grease to get that look you can. You simply cover all the decals to prevent damaging them, then read this:
How to polish aluminum Now when this article says relatively rough sand paper they're talking about 220 grit, sand the entire bike in one direction; then move to 400 grade of sand paper and sand in a different direction from the first sanding job, then keep moving to 600 and 800, then 1000, then 1200 sand paper all being sand in different directions from the previous sanding. You should wear a mask as the article says. You also have to hit the corners well so they match. When you're done with all that then get a buffer and apply buffing compound to it and start attacking the frame, but be careful of the decals; after that go to a polishing wax and use the buffer again. A lot of work and a lot of follow up afterwards to hide tiny scratches which I think would be a pain to do but you can get a chrome like finish if you work long and hard at it.