http://www.altamotors.coNot a lot of new information on the website, beyond a loose range specification.
There's a
press blast with reviews or more information. I recommend the
Autoblog article.
By the specs, it seems pretty similar to the 2013-2015 Zero FX ZF5.7. The Redshift is slightly lighter, has similar power, capacity, and gearing.
Damon Lavrinc at Jalopnik claims the Redshift is significantly more robust and the components are higher quality, as you would expect given the extra $3500.
The 40 hp motor is a claimed 11 pounds, versus 30+ pounds for the 44 hp 75-5 motor in the FX. Likewise, the 5.2 kWh battery pack is 70 pounds, versus the ~90 pounds for the two ZF2.8 modules in the FX. Very impressive. Both the motor and controller are liquid cooled, though there is no radiator. The charger is integrated (I'm curious where it's located on the bike), and will charge the bike in 4 hours vs 7.4 hours for the FX. Like the Zero, it is a 110V charger.
Like the FX, the battery pack is swappable, though it is a 5-10 minute job instead of
. This would not permit endurance races, but it might be useful for multiple track sessions.
One potential concern is the 1 year warranty. This is atypically short for a premium motorcycle, and Brammo and Zero both have committed to 5 year warranties for their battery packs. Alta does claim that the battery pack will be upgradable to future tech at some point, which would be great to see in practice.
The general impression I get is that Alta aimed to build the best off-road and supermoto bike available, full stop .. more of a Mission or Tesla than Brammo or Zero. I don't know how large the market for a super-premium supermoto bike is; the same $15k will buy you a Zero S ZF12.5 that is probably more useful for most street-riding motorcyclists. But the dirt racing community is very competitive, and if they show up to races and win then they will sell well within that community.