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Pedal Forward ... Go Forward       Pedal Backward ... Go Forward
It's That Simple!!

That's right!  The MBI Bi-Directional Gear allows the cyclist to discover the thrill of forward bicycle movement while pedaling backwards.
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Benefits
Gear Specifications

 
 
 
 
 
 
 
 
 
 
 
 
 


Some of the many benefits of the 
MBI Bi-Directional Gear are:
Exercises all leg muscles. Backward pedaling works the hamstrings, which complements the quadricep development of forward pedaling and results in better overall leg conditioning.
Reduces muscle fatigue caused by lactic acid build up. Backward pedaling allows muscles used in forward motion to periodically rest during extended rides.
Helps distance bikers improve performance on long-distance rides.  Makes climbing easier for off-road enthusiasts, and is novel and entertaining for leisure riders.
Provides a great training aid for racing purists.
The gear smoothly and effortlessly changes from forward to backward pedaling without hesitation.
Enhances bicycling's cardiovascular advantages. Provides a break from forward pedaling motion without completely stopping to prevent a drop in heart rate during rest.
Minimizes tension in knees, legs and lower back due to repetitive forward pedaling.
Fits all standard bike frames including road, hybrid, mountain, recumbent, and children's models. Can also be incorporated into spinner, stationary, and hand bikes, as well as physical fitness machines, to enhance operation.
The gear installs in under 15 minutes  The gear is lightweight adding approximately 1.5 lbs. to the total bike weight.
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MBI Bi-Directional Gear Specifications
Direction of Pedaling
Bi-Directional
Ratio of Speed (Forward/Backward)
1 / 1
Flange Dimension
126 mm
Bottom Bracket Threading
BC 1.37X24-L / M 36.0X24-L / M 35.0XP1.0-L / BC17 / 16X24-L
Material
Steel
Color
Silver
Weight
Full Assembly with options: 1.13 kg
Bottom Bracket Gear only: 342.5 g
Axle Length
144 mm
Axle Material
Steel
Axle Type
Cotterless
Chainline
47.5 mm, 48.5 mm, 50 mm
Inner Sprocket Teeth
24T
Options
Sprocket
Teeth 
(Outer/Middle)
42T/34T
PCD
110 mm
Material
Steel
Color
Silver
Finish
Polished
Options
Crank
Length
170 mm
Material
Alloy
Finish
Polished

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