Have your own rims that you prefer? Not a problem, I9 will do that for you as well. Black is the standard rim colour on tap, but the eye catching silver colour shown here can be had for an extra $50 USD should you be looking for a bit more flash. I9 also says that they are "tubeless ready", although this refers to rim bed and hook shape, not a sealed rim bed - they do require sealing tape that comes pre-installed from the factory, along with a set of tubeless valve stems, to get everything rolling sans tubes. The aluminum rims feature 33.5mm outer and 28.5mm inner widths, making them wide enough for use with proper DH tires ( as you'd expect), and their height should help to fend off pesky flat spots that might come from speed miscalculations. What makes I9's Gravity wheelset more downhill specific than their other offerings? It comes down to the rims and spokes, with both being burlier than what you'll find utilized in the rest of their lineup. Industry Nine's jewel-like hubs, with their threaded spoke flanges and easily interchangeable end caps, are the highlight of the wheelset. Low weight is one thing, but reliability trumps numbers when it comes to what's required of a downhill wheelset, doesn't it? With that in mind, we put five hards months of riding in on the I9s to find out how they hold up to everyday abuse. Compare that figure to other DH specific offerings out there and you'll find that the I9s impress.
That adds up to a 1,793 gram wheelset that I9 says is burly enough for everyday use on your downhill bike. These things not only look incredible, they're also very light given their intentions at just 817 grams for the front wheel and 976 grams for the rear. It doesn't end there, though, as they offer pre-built wheelsets that use their own rims, with our downhill oriented test wheels being built using their 530 gram Gravity rim in chrome, custom anodized blue spokes, and chrome hubs front and back.
Our conference has featured dozens of the subject matter experts in field-effect propulsion & gravity-modification research, and as we continue to explore new ideas our collaboration continues to grow.Traditional steel spoked wheels will likely never go the way of the dodo, but Industry Nine believes that there is a better solution when it comes to assembling a wheelset, and that involves large gauge, straight pull aluminum spokes that thread directly into the flanges of their radical hubs. APEC has enlisted dozens of the top innovators in exotic propulsion in what has been called “The Woodstock of Antigravity” – an open, collaborative environment seeking to cross-pollinate scientific discovery and engineering achievement. We respect theoretical physics, but we’re an engineering conference, which means we’re always on the lookout for new experimental methods. Our participants range from theoretical physicists publishing peer-review papers on quantum & relativity theory to gravity-hackers trying to reverse-engineer UFOs in their garage. Our conference presenters & attendees include a diverse collection of PhD physicists, engineers & garage-experimenters who have come together in a single forum. The Alternative Propulsion Engineering Conference (APEC) is a fully online, Zoom-based conference on emerging propulsion research including gravity-modification, inertial propulsion, warp-drives, and field-effect propulsion.