Originally Posted by
Doug64
You are technically correct about weight, however, my compression sacks are sil-nylon, and are significantly smaller than the original tent bag. The additional weight penalty is less than an ounce, which I'll easily accept. The gain in volume reduction with a packed tent and rainfly is significant. The tent bag is 60% larger than the compression sack, and that is even before it is compressed. The compression sack is 8.4L and the tent bag is 21.3L. The trick is to stuff it, not roll or fold the tent.
What kind of tent are you carrying? A 21.3 L bag is on par with a very large sleeping bag stuff sack. I put my pad, sleeping bag (even the 20° bag), and pillow into a 15 L stuff sack. My tent bag volumes are 3.7 L for a single person tent (10cm x 48 cm, 4" x 19") and 4.5 L for the two person tent (11cm x 47cm, 4.5" x 18.5").
Assuming the same pole length, your bag would be 9" in diameter. I can see why you went the compression route, but I can't see why any tent for bicycle touring would be need to be 9" packed diameter. And the poles don't stuff at all.