This was my thought process on an RTT as posted on another forum
I have an 04 Discovery II
As result of last summer's excursions I found me, my gear, and sleeping platform inside is not ideal for long trips. So the start of this is the great roof top tents search, I have no issues with ground tents, other than bears. But dry and clear space for a ground tent can be hard to find.
1st issue is weight up top Land Rover recommends no more than 50-60Kg about 110 to 130 lbs on the stock bars when moving. (gutter mounts allow up to 220)
2nd is the vertical size of the tent more for clearance than fuel consumption.
Starting with load bars I have about 40 lbs currently and that doubles, if I need 2 more so 80 lbs
The awning adds another 10
So my base weight is 50 lbs before tent (assuming 2 load bars) which leaves all of 80 lbs for the tent which is way light but gives me a guideline.
In the end I used 2 load bars 40 lbs
1 x 2 in square steel tube 6 lbs
Awning of 10 lbs
Total of 56 lbs
I am looking a 2 man tents, generally I am alone so that is a ton of room
The contenders were:
Smittybilt 2 man 2783 145 lbs - Cost CDN - 1100.00 Closed : 47"W x 56"L x 11"H
Tepui Explorer Ayer 2 95lbs - 1600.00 Closed 48" X 42" X 11" (WxLxH)
Freespirit 55 clone 160lbs -1200.00 Closed 83 x 52 x 11 (LxWxH)
Local Off brand 125lbs 1000.00 Closed 50" (long) x 48.5" (wide) x 15” (tall)
I am leaning towards the Tepui simply for weight savings and it can be a 4 season tent with addition of a liner, the lighter weight is also a bonus. As well it will fit without my having to adding additional cross bars - the cost however hurts a bit.
There are few other options that are local that may well work out, but they are larger tents than I need
I ended up with the Tepui Ayer ex-rental 1200.00 CDN all in at 100 lbs (5 lbs for anti condensation mat an sleeping gear)
So my total dynamic load is 156 which is 64 under max that gives me some leeway.
Last point and one everyone seems to forget is removing the cover and unzipping, and then folding, tucking, zipping and putting the cover back on.
I have a wide step/slider on my Disco, and I use a hockey stick to grab the zipper puller and open across the front.
When closing the hockey stick works as both a tucker and zipper pull
My tent is a true 2 man and you best be friendly