Picking up a torx wrench set. What sizes are useful for bicycles?

[morkys]

I hadn't realized that bicycles use torx bolts until I went to loosen a brake lever. I am going to Princess Auto to pick up something un-related to bicycles, but they have torx wrench sets. What sizes are used for bicycles? If not Princess Auto, I guess Park Makes a set just like the allen key sets (the foldable multi-wrench kit)?

[Toff]

On my bike 25 is the only Torx size used. It may be different than yours.

For this, no need to get a Park set. I have a much cheaper set i picked up and they work fine.

[morkys]

There are small sets at Princess Auto for $3-$7. Both sets include a T25.

[sasquatch rides a SS]

If you do anything with Avid hydraulic brakes you'll need T25 and T10. What type of Torx sets are you looking at? It is nice to have a full range of Torx, at least in my opinion. Many of my knives have Torx hardware and it has benefited me to have a complete set.

[customfab]

T5 through T30 are the only ones I've seen on a bicycle. T-25 and T-30 are by far the most common though.

[DennisF]

My chainring bolts are T30.

Just get a set. You'll eventually need them for something. I like the "socket" style because I can use them with a torque wrench, and they are cheaper. I don't think I could loosen them or tighten them enough with a screwdriver-style.

I caught these on sale for $7.99 as I recall.
9 Piece 1/4" and 3/8" Drive Star Bit Set