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UpsideRacks UpsideRacks's article
Dec 7, 2016 at 14:07
Dec 7, 2016
Upside Rack - Press Release
@Andy-ap: ahhh - sorry, I understand your concern now. The spring clamps are only there to hold the rack to the bike while you invert it for installation. Once tightened onto the cross rails the spring portion of the clamp is redundant and the clamping mechanism occurs via an internal threaded rod to secure the loads. Thanks, Stefan.
UpsideRacks UpsideRacks's article
Dec 7, 2016 at 3:24
Dec 7, 2016
Upside Rack - Press Release
hey there @efornwald. We know the bearing wear will be minimal without load (check our tech section in the Kickstarter page for detail) but we wonder about spinning wheels too. There is some science to suggest the reverse side of the spin will slow the spin before it can get too fast which is what we are seeing on the small sample of testing we have done so far. However there are soooo many variables in aero including tyre tread patterns, wheel design and the care aerodynamics we need to do more tests. We already have a design to hold the wheels if we need it however we want to make is as easy as possible to use so will only include it if extensive testing shows it's needed. Thanks, Stefan.
UpsideRacks UpsideRacks's article
Dec 7, 2016 at 3:13
Dec 7, 2016
Upside Rack - Press Release
Hey there @birdoboards: Thanks for looking at the press release and commenting. The design of the rack is such that the load on the seat is up/down which is the same as when ridden. There is no twisting load on the seat post as the handlebars take that load which is also the same as when riding. Regarding the cross bars, the design of the sliding hook allows the rack to adjust for the cross rail spacing in seconds when you install it. We have designed it to fit cross bars spaced 550mm - 930mm (measured from outer edges) which accommodates all the fixed location bars we have found except the Mazda CX-9. Industry experts also say the Mazda CX-9 is an anomaly in the market. So you can take your bike off one car with 930mm spacing and install in straight onto a mate's car with 550mm spacing in the matter of a few seconds. Regarding the number of bikes you can fit - if you have no overhang on the side of your cross bars, a small car and wide bars you may be limited to one bike but for example I can get three mtb's on mine with two facing forward and one rearward in the middle because my cross bars overhang just past the mounting feet of the roof racks. Hope this helps a little. Stefan.
UpsideRacks UpsideRacks's article
Dec 7, 2016 at 2:18
Dec 7, 2016
Upside Rack - Press Release
Hey Andy ... thanks for your comments, there are rubber straps and then there are high-tech engineering grade materials. Checkout the Kickstarter campaign if you want more detail on our material selections but it's worth noting that even with lower grade prototype materials we have doubled the loads on the international standard crash tests without the seat strap letting go at all. The SEBS elastomer gives massive strength (we can hang off 6 year old bike grips made of the stuff without any issue) as well as taking up slack on the soft components of the bike and absorbing vibrations. It's worth noting the prototype in the video is a very early iteration and the production unit is far stronger with thicker sections for strength and durability. We have already passed crash tests and will continue to test for long term durability and rough road exposure. Quality is our number one priority. Stefan.
UpsideRacks UpsideRacks's article
Dec 7, 2016 at 2:08
Dec 7, 2016
Upside Rack - Press Release
Hey Matt ... we'd love independent, expert advice and feel free to shoot us a follow up question if in doubt but fyi there is a detailed tech section on our Kickstarter page explaining much of this. The seat post is one we didn't explain. The rack design is such that is doesn't apply any twisting load on your seat post, only up/down which is exactly what seat posts are designed to take in use. Regarding dropper posts, the load of the bike on the post is significantly less than a rider. We drop our posts before installation as well, but it's not necessary. We have tested on our dropper posts (Sean's is the Norco in the vids, mine is the Stumpjumper) without any issues but have a plan in place to purchase the major models and test them as well. But you are right - it's super stable, especially on our mountain bike rigs.Stefan.
UpsideRacks UpsideRacks's article
Dec 7, 2016 at 1:55
Dec 7, 2016
Upside Rack - Press Release
Hey thorsbane. Yep - we know that for sure! We are the newcomers and have a lot to prove. This is the reason we are testing to highest standards we can find but with bigger loads and faster crash speeds. We have a lot of experience in the testing and durability space so are confident in our design skills but will still test everything. Thanks for the best wishes. Stefan.
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Nov 29, 2016 at 17:00
Nov 29, 2016
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Nov 29, 2016 at 16:38
Nov 29, 2016
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