The ENVO Stax is a Class 1 electric bike with a proprietary 500w rear hub motor with 60nm of torque. The battery is a 36v 12.8Ah battery that offers about 60 miles of range.
ENVO chose to go with a rear hub motor over a mid drive unit to relieve wear and tear from the drivetrain. The drivetrain itself is a Shimano 8-speed and the Stax is outfitted with Shimano hydraulic disc brakes with 180mm rotors.
The frame itself is 6061 aluminum alloy and the Stax weighs 42 pounds. It isn’t the lightest 700c commuter we’ve ridden to date, but it is within a few pounds and definitely lands in the lightweight category of electric bikes.
The ENVO Stax comes in one size that fits riders from 5’4″ to 6′. Taller riders may want a slightly larger frame and longer wheelbase to feel more comfortable. At the higher end of the size range, the Stax didn’t feel too small, but we think riders in the 5’8″-5’10” range would fit it perfectly.
There are 5 levels of pedal assist that distribute power based on watts. This helps regulate the power output smoothly for optimum range and assist based on riding conditions.
Whats most unique about the ENVO Stax is the decsision to fit the battery into the seat tube as opposed to the downtube. The benefits of this and the reason ENVO chose this design is pretty straight forward. By positioning the battery under the rider it centers the weight between the bike and offers a more natural and intuitive rider feel.
As an additional frame design feature, there is a headlight integrated into the head tube. The light itself is very bright and offers great coverage of the road while riding at night.