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Summary
  • One of the only mid-drive electric bike conversion kits around, 8Fun is an established brand
  • Offers both pedal assist and throttle mode configurations, great LCD screen with lots of options
  • Not sophisticated enough to sense when shifting gears and let up, may wear chain and cassette faster
  • Keeps weight low and center on bike, makes fixing wheels and flats easier than hub motors

Introduction
  • Make / Model : 8Fun / BBS01 or BBS02
  • Suggested Use : Urban, Trail
  • Electric Bike Class : Throttle on Demand (Class 2) - Learn More about Ebike Classes
  • Warranty : 1 Year Comprehensive
  • Availability / Model Year / Overall Rating : United States / 2014 / 9.5 of 10

Electronic Details
  • Motor Type / Nominal Output : Mid-Mounted Geared Motor / 350 watt 
  • Motor Brand : 8Fun
  • Battery Voltage : 36 volt /
  • Chemistry : Compatible with SLA, LiPo or Lithium-ion
  • Display Type / Readouts / Accessories : Bafang C961 Backlit LCD / Speed, Odometer, Battery Level, Assist Mode (Programmable 3 to 9 Levels) / Independent Button Pad
  • Drive Modes / Top Speed : Cadence Sensing Pedal Assist, Twist Throttle / 20 mph (32.19 km/ hour)

Bicycle Details
  • Motor Weight : 8 lbs (3.63 kg)
  • Cranks : Integrated with Bottom Bracket Motor
  • Brakes Details : Wuxing Levers with Electronic Motor Cutoff
  • Accessories / Other Details : Plastic Bash Guard, Speed Sensor (Mounts on Chain Stay with Magnet on Rear Spoke), Quick Connect Wiring / Fits 68 mm to 73 mm Bottom Brackets, Built in Motor Controller, 46 Tooth Chain Ring, Estimated Charge Cycles for Sealed Lead Acid Batteries ~600, Estimated Charge Cycles for Lithium Polymer ~800, Estimated Charge Cycles for Lithium-ion ~1,000, Battery Used in Review is a 36 Volt 10 Amp Hour Lithium-ion ~$700, Can Update Settings with LCD to Reach Higher Speeds

Bicycle compatibility

The Mid Drive Kits are designed to fit bikes with a 68mm (2.68 in.) or 73mm (2.87 in.) wide bottom bracket shell and 35mm inside diameter.  

This encompasses the vast majority of bikes excluding:
  • some newer high end bikes with an Integrated Bottom Bracket, and
  • Fat tire Bikes with a 100mm wide bottom bracket shell.
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  • Home
    • References
  • Products
    • Retrofit >
      • Front hub
      • Rear hub
      • Front & Rear hubs
      • Crank
    • Bikes >
      • Buyer's Guide
      • Examples of bikes we have restored
    • Scooters
  • Economics
    • Costs
    • Distances
  • Batteries
    • Applications & Services
    • Manufacture
    • Low Voltage Batteries
    • Cases
    • Cells >
      • High Capacity Cells
    • PCMs & BMSs
    • Capacity Testing
    • Quotation Policy
    • Looking After Your Battery
  • Documentation
    • Legislation
    • Direct vs Geared Motors
    • How Much Power do I Need?
    • Battery info >
      • Lithium Ion - Hazardous material
      • General information
      • Technical information >
        • QT Battery
        • Frog Battery
        • Rack Battery
        • Bottle Battery
    • 8FUN mid-motor >
      • General Information
      • Documentation
    • Yoch mid-motor
    • Hub Motors >
      • Installation
      • Specifications
    • LCDs
    • Odds & Ends
    • Warranties
  • Contact