Aluminum
104 BCD Adapter for Motorized Bicycle Rear Hub
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Product Description
Now you can attach a 10mm 4-bolt front chainring to your back wheel instead of using only the permanent form of attachment points on the sprocket to the spokes which is provided with nearly all motorized bicycle kits and builds.
This kit is designed to go on in-place of the typical sprocket. It is mounted the same usual way, with 9 bolt through two tire material washers and a split metal washer.
The 104 BCD chainring is attached to the adapter in the usual way, with standard 10mm chainring bolts. A person who purchases this kit will be able to mount the sprocket by simply removing the 4 bolts, placing the new chainring, and then replacing the bolts.
Provided the 9-hole mounting bracket is mounted properly, a person does not have to recenter or adjust the fitting. Provided the frame had enough tolerance, a person could also mount, in a secure and convenient way (the bracket is notched to allow for the insertion of a chainring on either face), two, three or more chainrings .
If the person manages the tolerances of their frame, tire, wheel, and chainline, it makes a handy place for the storage of an unused chainring, and the wheel can also be reversed in the event of a malfunction or error of the motive power of the bike and a very low-geared fixie is created.
Sizing of Sprockets
The standard sprocket which comes with a motorized bicycle kit has 40-50 teeth, usually 40, 44, or rarely, 48.
When a larger rear sprocket is used, the wheel is turned less per the stroke of the motor, but with the same total amount of power. The capacity of the carburaetor and the motor is limited to a certain top RPM which will be reached with less forward momentum being applied to the bike.
When a smaller rear sprocket is used, the wheel is turned more per the stroke of the motor, but with the same total amount of power. The capacity of the carburaetor and the motor is limited to a certain top RPM which will be reached with more forward momentum being applied to the bike.
These variations will change driving habits. The road under the tire generates resistance as the bike moves forward, and as the wheel is turned more or less because of the size of the sprocket so does that resistance.
A larger sprocket overcomes road resistance easier, building of acceleration.
There is more purchase, more leverage.
It has a lower cruising speed, the motor will stall at a lower speed.
It is easier to start.
A smaller sprocket takes longer to build momentum, as the smaller sprocket must act upon inertial forces which initially exceed the motor's full capabilities.
There is less purchase, less leverage.
It has a higher cruising speed, the motor will stall at a higher speed.
It is harder to start.
We will revise this model when a gear changer is invented.
The part is 3mm thick
24mm-26mm ℄ spacing 9-bolt mounting (Bore = 7.5mm ∅)
1-13/32" (35.7188mm) Centerhole
x4 10mm boreholes for 10mm crankbolt
This kit is designed to go on in-place of the typical sprocket. It is mounted the same usual way, with 9 bolt through two tire material washers and a split metal washer.
The 104 BCD chainring is attached to the adapter in the usual way, with standard 10mm chainring bolts. A person who purchases this kit will be able to mount the sprocket by simply removing the 4 bolts, placing the new chainring, and then replacing the bolts.
Provided the 9-hole mounting bracket is mounted properly, a person does not have to recenter or adjust the fitting. Provided the frame had enough tolerance, a person could also mount, in a secure and convenient way (the bracket is notched to allow for the insertion of a chainring on either face), two, three or more chainrings .
If the person manages the tolerances of their frame, tire, wheel, and chainline, it makes a handy place for the storage of an unused chainring, and the wheel can also be reversed in the event of a malfunction or error of the motive power of the bike and a very low-geared fixie is created.
Sizing of Sprockets
The standard sprocket which comes with a motorized bicycle kit has 40-50 teeth, usually 40, 44, or rarely, 48.
When a larger rear sprocket is used, the wheel is turned less per the stroke of the motor, but with the same total amount of power. The capacity of the carburaetor and the motor is limited to a certain top RPM which will be reached with less forward momentum being applied to the bike.
When a smaller rear sprocket is used, the wheel is turned more per the stroke of the motor, but with the same total amount of power. The capacity of the carburaetor and the motor is limited to a certain top RPM which will be reached with more forward momentum being applied to the bike.
These variations will change driving habits. The road under the tire generates resistance as the bike moves forward, and as the wheel is turned more or less because of the size of the sprocket so does that resistance.
A larger sprocket overcomes road resistance easier, building of acceleration.
There is more purchase, more leverage.
It has a lower cruising speed, the motor will stall at a lower speed.
It is easier to start.
A smaller sprocket takes longer to build momentum, as the smaller sprocket must act upon inertial forces which initially exceed the motor's full capabilities.
There is less purchase, less leverage.
It has a higher cruising speed, the motor will stall at a higher speed.
It is harder to start.
We will revise this model when a gear changer is invented.
The part is 3mm thick
24mm-26mm ℄ spacing 9-bolt mounting (Bore = 7.5mm ∅)
1-13/32" (35.7188mm) Centerhole
x4 10mm boreholes for 10mm crankbolt
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BicyclesDetails
What's in the box:
104 BCD Adapter for Motorized Bike
Dimensions:
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