The wheels are driven by hardened steel 420 chain and direct drive gearing.
Braking is performed by six-piston calipers per axle, with a 9-inch (230 mm) front rotor.
It includes 17 by 2.5 in (432 by 64 mm) rear rim with 17 in × 3.5 in (432 mm × 89 mm) rear tire and 20 in × 3.0 in (508 mm × 76 mm) front tire.
Standard battery pack is made from lithium-ion, with rated range of up to two hours or 64 km (40 mi). Recharging is done using 120 V or 240 V with a charging time of two hours.
Other features include USB port that allow access to the bike's motor controls.[1]
Extreme Package includes Higher Power Perm Motor with 10% more power over stock and faster top end speeds, customized stronger fork.
2009
Changes include improved chassis, which features hydroformed top tub, larger swing arms, thru-axle rear hub, shot-peened and anodized frame, organic frame gusseting, new number plate. As a result, it was 6 pounds (2.7 kg) heavier (now 151 lb or 68 kg) than 2008 model.[2]
Prototype of 2009 model was unveiled in 2008 Alternative Energy and Transportation Expo in Santa Monica, California.
