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New Products

New RIOT Class 1 eMTB
Class 1 legal eMTB with monster torque
featuring the new PowerStorm MBB.

New PowerStorm Torque Sensor
Our MBB now has a dual-sided pedelec
torque sensor, easy riding awaits!

Pre-owned Bikes Available
We have several great pre-owned
options current available.

Pro Series

The Best Performance in The Industry

Optibike SIMBB 29R

The SIMBB line has been discontinued

Browse all Optibike Models

Top Speed
Maximum Range
*Max Range at 15MPH with a 170LB rider with moderate pedaling*
Motor Power
Motor Torque


The SIMBB 29R is the Belt Drive and Rohloff Hub version of the SIMBB 29C. It is made in America, with legendary Optibike quality and performance. Various people in the industry have said the SIMBB is the future of E bikes. Many people still ask, “where is the battery”. They find it hard to believe the battery is in the bottom bracket with the motor, it looks so small.

SIMBB is a marvel of design and engineering. Good looking and Fast! Truly Made in American quality and award winning design of the Optibike in a super package. Shimano Hydraulic Disk brakes, X Fusion Slide 100mm travel front forks, 29 inch wheels with knobby tires, durable powder coated frames and Rohloff 14 Speed Internal Hub with Gates Carbon Belt Drive make the SIMBB 29R a blast to ride.

Truly made in USA performance

The Optibike SIMBB 29R is the only electric bike made in the USA. Each frame is hand built from aircraft 4130 Chromalloy. The SIMBB cases and motor parts are machined from 6061 aluminum and 4130 Chromalloy.

What is the SIMBB?

The Optibike SIMBB drive unit contains the battery, motor, and all the electronics in one small unit that’s weather sealed

45 day Guarantee

Optibike is the only motorized bicycle company to offer a 45 day satisfaction guarantee on its full line of e-bikes.

Ride your Optibike for 45 days. At the end of 45 days, if you do not love what we feel is the best electric bicycle on the market, send it back for a refund, no questions asked.



The Optibike SIMBB 29R is covered by a 5 year warranty on the Frame, a 2 year warranty on the Lithium Battery, and a 1 year warranty on the Suspension, Brakes, Electronics, Motor, and Drivetrain

Please see the Details page for Terms and Conditions


Detailed Specifications




Gearing and Drive



Front Suspension




Custom Handmade in USA 4130 CroMoly Steel

Patented Optibike Motorized Bottom Bracket

36 Volt, 20 Amp-hour, 720 Watt-hour Lithium Ion

Rohloff 14 Speed Internal Hub with Gates Carbon Belt Drive

DT Swiss

Schwalbe 29×2.0

X-Fusion Slide RL2 100mm

Avid Code R


120/240 Volt Input, 6 Hour Charge Time