Carrying tools on a tri bike?

Depending on your saddle, you may be able to get most or all of that under or taped to the back of your saddle.  

Is this for racing or training?  If training, you can just stuff them in a jersey back pocket as well.  In my current setup, I have a c02 and two levers under my saddle and I was just putting a tube and multi tool in my jersey.  For racing, I have an aero bottle that I put on the downtube that holds everything I need.

I am able to get the tube, tire levers, and one CO2 and inflater under the seat. I wrapped the tube and CO2/inflater with plastic wrap so it stays dry. A little baby powder too, but I'm probably a bit OCD with this stuff. (I'll take it all out and check it before next season. An extra CO2 goes into a bento box. The tire irons wedge in on the sides and it's very secure. Here's some pics to help illustrate.

eta: nothing is really sticking out, it's just the camera angle. Plus it's been bouncing around all season, including a pretty bad bike crash in August.

(saddle2.JPG)

(saddle3.JPG)

(saddle1.JPG)

I got a little taller water bottle that I put in my 2 bottle behind seat bottle holder.  I got a small pump that will fit inside that bottle, along with a set tire levers, spare tube, ss allen wrenches and small tube patch kit. This set-up has worked for me for many, many years.

Hope this helps

Bento box.

If you need more stuff in training, jersey pocket. You shouldn't need more than a bento box worth of flat repair gear on race day.

Khyron - 2012-11-24 11:41 AM I got one of these:

 

The tube/lever/inflator/co2 fit fine in the darkspeedworks bento thing. 

I haven't seen those before. Cool device, and a clever spot to put it (in the QR).

I do this too, except I put a spare tire in there instead of a patch kit along with CO2 cartridges and the inflator. 

Nice work, pics or it didn't happen!  

I'd suggest getting a bag that fits. My saddle's all the way forward, but my bag will still fit. It's oriented more vertically than it would be on a normal road bike or if my saddle was further back. Getting creative and making things fit in the garage is pretty easy, but getting everything tucked back into place on the side of the road when it cold, windy, and raining or when it's 115-degrees and you're a sweaty mess can be frustrating. Used tubes can be tougher to squirrel away than new ones and take up more space unless you really work at them. I guess you can always use a jersey pocket if things don't go back into place under the seat nicely. It just seems to me that nothing beats the convenience of a small bag for day to day training rides. On long training rides I take two spares, tire tools, two CO2, a just-in-case $20, and a small multi-tool.  

Can't even tell its there