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Turn Any Bike Into a Beast Using the Mid Motor with 36T Chainring: 48V 750W

Turn Any Bike Into a Beast Using the Mid Motor with 36T Chainring: 48V 750W

Electric bike conversions are booming—and for good reason. Turning your regular bike into a powerful electric machine gives you freedom, speed, and convenience. One of the most popular and reliable options on the market is the BAFANG 48V 750W BBS02B mid-drive kit, especially when paired with a 36T chainring for superior climbing power.

If you’re looking for a conversion kit that’s powerful, smooth, and built by experts, Accolmile’s BBS02B setup is a top choice. Let’s break down everything you need to know so you can decide if this kit is the right match for your ebike transformation.

Understanding the 48V 750W BBS02B Mid Drive Motor

What Makes a Mid-Drive Motor Special?

Mid-drive motors sit at the center of your bike—right at the bottom bracket. This setup gives you better balance, more torque, and a natural riding feel because the motor works with your bike’s existing gears.

Think of it like adding super-legs to your bike, instead of pushing from the rear like hub motors.

Key Features of the BAFANG 750W Motor

  • High performance and lightweight

  • Top speed up to 25 MPH

  • Smooth assistance for throttle or pedal assist

  • Low maintenance and long-lasting

Bafang is a global leader in ebike motor technology, making this motor an extremely reliable choice.

Max Torque: Why 120 N.m Matters

120 N.m of torque is serious power. It means:

  • You climb hills effortlessly

  • The bike accelerates rapidly

  • You can ride heavy bikes like fat-tire or cargo bikes with no struggle

If you live in a hilly area, this torque will feel like magic.

Price:
(as of – Details)

Compatibility of the 750W BBS02B Kit

Suitable Bottom Bracket Sizes

This kit fits:

  • 68–73 mm length

  • 34–36 mm internal diameter

This covers most common bike standards, especially:

  • Mountain bikes

  • Road bikes

  • Commuters

  • Folding bikes

Compatible Bike Types

The motor is adaptable and works beautifully with:

  • Hardtail MTBs

  • Hybrid bikes

  • Touring bikes

  • Classic steel frames

Bikes Not Recommended

Avoid installing on:

  • Carbon fiber frames (risk of cracking)

  • Coaster brake bikes (no proper mounting support)

If you need a 100mm bottom bracket version, just search the recommended model B099Z8Y6QN.

Chainring Details: Why the 36T Chainwheel Matters

Advantages of a Small Chainwheel

A 36T chainring brings:

  • Stronger climbing torque

  • Lower gearing for control

  • Better responsiveness on steep terrain

Improved Climbing & Control

The small chainwheel helps maintain:

  • Smooth cadence

  • Better traction

  • Reduced strain on the motor

This combo is perfect for trail riding or city hills.

Efficiency and Cadence Benefits

You won’t have to mash the pedals or overwork the motor. The balance of torque and cadence feels natural and efficient.

Battery Options for the BBS02B Mid Drive Kit

Shark Battery Options: 17.5Ah vs 18Ah

Both offer excellent range and lifespan.

  • 17.5Ah: slightly smaller size

  • 18Ah: higher capacity for longer rides

Both use high-quality cells, maintaining consistent output.

Rear Rack Battery Option

Great for bikes without frame space.
It includes the rack, making installation seamless.

What to Expect If You Choose NO Battery

You will receive:

  • Motor

  • Chainring

  • Display

  • Wiring
    Everything except the battery.

Perfect if you already have a compatible 48V pack.

What’s Included in the Conversion Kit

Full Packing List

Here’s what you get:

  • 750W BAFANG BBS02B Motor

  • Battery (if selected)

  • LCD Display

  • 36T Chainring with Guard

  • Speed Sensor

  • Brake Levers or Sensors

  • Thumb Throttle

  • 1T4 EB-BUS Cable

  • Crank Arms

  • Lock Nuts

  • Installation Tools

  • Headlight

  • Gloves

Purpose of Each Component

Every part has a job:

  • Display: shows speed, battery, PAS level

  • Throttle: lets you ride without pedaling

  • Chainring: balances torque and speed

  • Sensors: ensure proper motor operation

Installation Tools Overview

Basic wrenches and tools are included, but having a bottom bracket removal tool makes the job easier.

Performance Expectations

Top Speed Capabilities

You can hit up to 25 MPH depending on bike and battery.

Throttle vs Pedal Assist Modes

  • Throttle: great for relaxing

  • PAS: boosts your pedaling smoothly

Switch modes anytime depending on your ride.

Real-World Riding Experience

Most riders report:

  • Strong acceleration

  • Quiet motor operation

  • Smooth and intuitive feel

  • Excellent performance on hills

..

Installation Tips & Important Notes

Tools Needed

  • Bottom bracket tool

  • Allen keys

  • Wrenches

  • Cable ties

Installation Warnings

Avoid mounting on:

  • Carbon frames

  • Coaster brakes

Ensure cables are not pinched or stretched.

When to Seek Professional Help

If you’re unsure about the bottom bracket removal, a bike shop can help without much cost.

Accolmile Global Shipping & Customer Support

Warehouse Locations

Accolmile ships from:

  • US

  • EU

  • Canada

  • Australia

  • Japan

  • China

Delivery typically takes around 7 days.

Warranty Details

Every product includes a:

  • 1-year warranty

  • 24/7 customer support

Technical Support Availability

Accolmile has professional techs located in the US and abroad who can assist with:

  • Installation help

  • Troubleshooting

  • Replacement parts

Why Choose Accolmile’s 48V 750W BBS02B Kit?

Long-Term Value

You get a powerful, durable motor with excellent customer service and long lifespan.

Eco-Friendly Transportation

Ebike commuting is clean, affordable, and reduces your carbon footprint.

The Thrill of EMTB Riding

Whether you’re trail riding or city cruising, this kit transforms your experience into something truly exciting.

The Mid Motor with 36T Chainring: 48V 750W BBS02B Mid Drive Kit is a powerhouse designed for riders who want strength, reliability, and smooth control. Whether you’re converting your mountain bike for adventure or upgrading your commuter bike for speed and efficiency, this kit delivers outstanding performance.

Accolmile’s partnership with BAFANG ensures top-tier quality, and the included accessories make installation straightforward even for beginners. With excellent torque, fast shipping, multiple battery options, and dependable support, this conversion kit is a smart investment for anyone ready to elevate their riding experience.

FAQs

1. How fast can the 48V 750W BBS02B motor go?

Up to 25 MPH depending on terrain, weight, and battery.

2. Is the 36T chainring good for climbing?

Yes, it provides excellent torque and control for hill climbing.

3. Can I install this kit on a carbon bike?

No, it’s not recommended due to frame stress risks.

4. How long does shipping take?

Around 7 days from Accolmile’s global warehouses.

5. Does the kit come with a battery?

Only if you select a battery option. Otherwise, it ships without one.

 
Price:
(as of – Details)

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