I'm sorry but there's NO WAY I'd use that contraption.....maybe on an old ratty car but no way on my new Model 3. All I see is that coming loose and/or the bike falling over and scratching the holy $&@ out of my Roof...paint and Pano Roof as it slides down and off the back of my car! All the time listening to the scratches and screeches as it slides back, tears streaming down my face, crying like a baby and looking at the bike and mousetrap 'thingy' cartwheel down the interstate in my rear view mirror like a tumbleweed across the Great Plains.
EM mentioned recently there will be a Model X suction cup bike rack if you are willing to close off one of the FW doors. can't recall what event that was at, but remember a wind tunnel test was done at some crazy speed (like 200miles or something in that range).
Found this tweet when googling for it from last year - and lists a lower wind speed...
I'm really warming up to this. I've dealt with roof and bike rails and it's no fun. Being able to quickly install and more importantly, alter the positions of the mounts is really appealing. I might still end up getting the tow hitch for a bike rack though as it's better for aerodynamics and thus range.
I'm not 100% sure a bike rack on the back will help with Aero. Unless the total cross section of the bike is within the draft of the car the bike will produce drag. Most Bike racks/mounts place the bike perpendicular to the direction of travel which places the fork outside of the draft of the car and would produce considerable drag. The drag could be negligible or significant but it's something to consider.
I ordered mini-bomber which is on sale at Mike's bikes and it came 2 days later.
I installed and did quick test yesterday.
The bikes felt rock-solid when mounted and after sitting in garage overnight the vacuum did not drop at all (built-in indicator shows when it needs re-pumping)
The Mini Bomber is a two bike rack and SeaSucker’s most versatile yet. It can hold one or two bikes at the same time. For bikes with wider handlebars (Downhill, hybrid, cruiser) you can angle the fork mounts using the additional holes drilled in the deck. It has a center accessory mount location for an add on wheel holder. This rack works great with Tandem and Recumbent bikes. Uses four 6” vacuum cups on the body of the rack. Includes two rear wheel straps and spare tire
There is some noise from the rack itself (i.e. I can hear it even without bikes) but it's not too bad and only at highway speeds. I did not experiment with moving the rack around the roof.
Two bikes on the roof magnify impact of headwind greatly. For example today driving form Las Vegas to Prim we saw 400Wt/mile consumption going just 60 MPH. So finding big rigs and drafting behind is essential.
From Prim, NV to Yermo, CA we drove behind a truck at around 55-60MPH and consumption was 220Wt/mi.
This whole week since last Sunday 5/20 we're traveling with two bikes and over 1128 miles average consumption is 258Wt/mi so far. We routinely drive 5-10MPH below speed limit.