Cobb rear mount hydration

Triathlon Forum
1

I got this as a gift and bolted it up. It has some large threaded holes on top as well as between where the cages will go. Any idea what these are for?

2

Probably co2 carrier? Any hints on their website? Just tried the elite one which is kinda same (distance from saddle and size) but don’t think I’ll use it. It’s a huge rack.

3

+2, I would try screwing in co2 cartridges
.

4

They are for CO2.

5

I figured it could be used for 1 or 2 bottles. But co2 would work.

For me it was a perfect bottle launcher, with bottles perfectly upright. I only use mine for training… as I only need 2 bottles for racing anyway.

6

I figured it could be used for 1 or 2 bottles. But co2 would work.

For me it was a perfect bottle launcher, with bottles perfectly upright. I only use mine for training… as I only need 2 bottles for racing anyway.

I have the Cobb rear mount setup and like it. But I haven’t had a bottle launch on me yet (only about 1,000 miles so far). \

To the OP – the small holes are for bottle cages, the large holes are for CO2 cartridges.

7

thanks, what cages are you using?

8

I originally had some ultralight Zipp carbon bottle cages. But then I decided to get some cheaper plastic cages in anticipation of drilling holes to run elastic cords through them (per Rappstar’s recommendation) to make launching bottles almost impossible:
http://blog.rappstar.com/2007/11/anti-ejection-cages.html

So I bought these Arundel cages from Trisports (less than $12):
http://www.trisports.com/arundel-sport-bottle-cage.html

But I haven’t been launching bottles so I haven’t felt a need to modify these cages.

9

would you guys take a photo of your set up?

it looks like the bottles would face towards the seat not away - is that by design?