Parker has some blurbs here:
http://www.parkermotion.com/parkerracing/Bike Name: 2013 Brammo Empulse RR
Chassis: Brammo Empluse [sic] RR
Battery: Brammo Power
Energy Storage: 14kWh
Motor: Parker Hannifin's GVM PMAC Traction Motor
Horsepower Equivalent: 173hp
Controller: Rinehart PM100
Weight of race ready bike: 220kg
14 kWh is up from 12.6 kWh last year, I think.
Rinehart makes some $$$$$ controllers, supposed to be the best in the business. PM100 is rated at 100 kW peak, less than the GVM motor's peak of 130 kW. Not sure if they have a special controller, they're running the controller out of spec, or if they just don't need more than 100 kW.
220kg = 485 lbs. Last year's bike is claimed to weigh 35 lbs more, at 520 lbs.