R Martin R12-A Electric Bike


You asked for it – so we built it. The R12-a is the same popular R12 step-thru electric bike with an 8-speed derailleur. We also added a new power control meter on the handle bar, upgraded the grips and had the frame painted a deep blue.

European styling makes this step-thru attractive and a popular choice for commuting to work or the store. Large rear rack is perfect for carrying books, groceries, or your picnic basket.

Front fork shocks cushion your ride. You can also add a suspension seat post and cruiser saddle for added comfort.

The “R” series bikes are our top models designed to be comfortable and long lasting. These are the finest electric bikes we have ever offered and compare to electric bikes costing more than twice as much.

The R12-a uses a patented bracket mount motor design. This design allows us to get more climbing power with lower battery usage. This also allows for easy changing and removal of both the front and rear wheels.

The bracket mount motor enables the bikes gears to be used with the motor. This allows you to downshift for hills and to shift up to higher gears as you gain speed. This feature is exclusive to our “R” models.

The R12-a has a V-type front and rear brakes. The smooth shifting Shimano Acera derailleur is combined a an 8-speed SRAM cassette.

Quality components make the R12-a an easy and comfortable ride.

Lithium batteries combined with the crank motor allow you to travel farther.


FrameAluminum Alloy
Battery36v 10ah Lithium
Max Speed on motor power20 mph
MotorHigh Torque 600 watt peak bracket mount motor- 200 watt continuous
Charger110v Smart Charger
Rear Deraileur8-Speed Shimano Acera
Wheels26″ Double Wall
Tires26″ x 1.95″ (inflate 40-65 psi)
ForkHi-Ten Steel with Zoom Shocks
Step-Over Height22″
Wheel Base49″
Min Seat Height33″
Total Weight
60 lbs
Twist ThrottleYes
Pedal AssistYes – 3 level
OtherFront and rear LED lights

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