At Hi Power Cycles, we constantly innovate to provide our customers with the best selection of electric systems to fit their lifestlye and needs. We saw great potential in the 8fun mid drive system and went about trying to make this the best mid drive solution available! We have tested these on 3,000 + foot elevation climbs and they perform beautifully. If you have hills to conquer or want a nice integrated conversion that you can control the torque and speed then this is the system for you! The main differences of our system vs a standard BBS02 750W lies in our custom programming and full power controllers. Most retaillers will have anywhere from 21A-25A depending on where you source it. Our kits come standard with a custom 6061 Aluminum Adapter that allows for our included 32-38T sprocket vs the standard 46 or 48T. Compared to stock, the narrow wide chainring provides more consistant chain retention and allows the motor to be geared down for higher torque and efficiency. Most important is our programming. We have full access to every parameter of these motors and provide custom profiles on our 1200W+ systems in PAS 1, 2, 3 to allow them to be EU legal in PAS1, 500W legal in PAS 2 and US legal with 750W maximum output in PAS 3. We also optimize on throttle and Pedal Assist response to be more benign on chains and sprockets so you are less likely to damage gears with a smoother engagement. We offer 7 levels of pedal assist and a Throttle only mode as well. Full throttle over-ride is available in all PAS modes except 0.
These units include the follwing:
custom programming (these offer up to 9 speed of pedal assist, a throttle only mode, and ability to use the full power throttle in any pedal assist mode)
Maximized power output with high end internal controller
Extended Speed Sensor Cable
Custom Anodized Aluminum Spider with high quality single speed anodized crank + custom mounting hardware. We have added approximately 20% more torque than the stock system allowing the system to run cooler and more efficient with minimized chain issues.
We have tested these units with our dynojet dynamometer in our shop and the results were very positive! Please Look at the last picture for actual dyno of this system on one of our bikes.
Commonly asked questions:
1) Will the pedals move when it is in pedal assist? No, it disengages the crack and only moves the inner crank.
2) Advantage of the mid drive? It gives you more torque, which is good for climbing hills.
HPC Mid Drive System (BBS02)
Custom Single Speed 38T sprocket for nore than 20% more torque and higher efficiency (Red or Blue)
Throttle Only Mode
7 Levels of Pedal Assist with Throttle override in every level of PAS
Helical gears for quiet, smooth operation
Internal Controller (sealed, very water resistant)
Fits standard 68mm or 73mm bottom brackets
Upgraded C961 LCD screen (Shows relative battery level, assist level, speed, distance)
Plug and Play (Note: you will need a matching battery connector)
Weight: 8.9 Pounds
HPC 12.5ah NMC Battery System
Choice of Battery Bag System (we recommend our exclusive frame bags)
HPC Mid Drive System
C965 LCD Screen w/ Power Button and assist level selector
L+R Crank Arms
HPC Custom Crank Setup (Red or Blue)
L + R Brake levers w/ cutoff for more torque!
Thumb Throttle (can mount on left or right side)