This is the base of the 1740, distance between the centres of the feet at the front and the back of the case is 30.6", and I'm using the Imperial measurement because I found that the centre-centre distance on my roof bars (from a US Porsche forum) is 28".
So I'm hoping that the feet (which are quite deep) will locate the box well on the bars, and then with a ratchet strap passed lengthwise underneath the box from handle to handle it will be held firmly onto said roof bars.
This is the base of the 1740, distance between the centres of the feet at the front and the back of the case is 30.6", and I'm using the Imperial measurement because I found that the centre-centre distance on my roof bars (from a US Porsche forum) is 28".
So I'm hoping that the feet (which are quite deep) will locate the box well on the bars, and then with a ratchet strap passed lengthwise underneath the box from handle to handle it will be held firmly onto said roof bars.
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