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250w Mid-Drive Motor Kit

From: $1,400.00 $1,350.00

A mid-mount motor running on the chain gives you the powerful advantage of providing different gear ratios for the motor to perform in. When you are in a low gear (for taking off or hill climbing), you will get higher torque from the motor. And when you are in a higher gear, you will get more top speed from the motor. So, just like in a manual car. This leads to more efficient use of the battery, and the motor assists you at appropriate torque levels, selected by you based on the terrain.

The system allows you to choose between various (3,5 or 9) different levels of automatic pedelec assistance. These levels are easily adjustable from the LCD screen on the handlebars.

Choose from our range of versatile and practical frame-mounted batteries, designed for balanced comfort due to their central and low mounting position. The weight of the motor/controller unit is also in its best possible position down below the bottom bracket, worth half of any unsprung weight in the wheel (ie. compared to hub motors).

No longer will you be limited to where you can ride.. The hills will feel flat, and the world will open up for you when you upgrade your bike with a REV-Bikes electric assist system. Book a Test Ride – we even come to you!

Our kits can electrify ANY bike, often giving a new life to your old trusty. But if you’d prefer a brand new and shiny bike, check out our recommended bikes for this kit.

We are so sure you won’t be disappointed, we are happy to offer you a 30 day 100% Satisfaction Guarantee on this kit.. Love it, or you’ll get your money back!

We provide 2 years warranty on all parts in the kit, and a lifetime warranty on our labour if we fit it for you – check out our Mobile Service.

See a range of bikes fitted with REV-Bikes Kits in our Gallery

Mobile Service now available across Melbourne.

Description

Description

250w Mid-Drive Motor Kit with Frame Battery

Bafang (or ‘8FUN’) motors are generally accepted to be the best after-market mid-drive motors in the industry. There is a reason they have such a good reputation.. we have seen for ourselves the quality control systems in place at the factory outside Shanghai, and we are definitely impressed with the performance of their mid-mount systems.

The motor mounts through any standard bottom bracket from 68mm – 73mm wide (press-fit bottom brackets require an adapter, and we can get wider BB compatible motors for fat bikes etc). The entire bottom bracket and crankset assembly is removed, and replaced by the motor and single chainring. Cranks are also included, and you can reuse your existing pedals (9/16”). Your rear gears will remain untouched.

The controller & pedelec are both internal within the mid-drive motor, which simplifies the fitting. The pedelec is very responsive, especially when appropriately choosing low gears to take off in. This is important on a mid-drive e-bike, like when driving a manual car, to get the most torque during take-off and hill climbing.

The handlebar controls provided include the optional-to-install throttle (thumb style). Throttles are not strictly road-legal on a 250w kit, but they are sometimes popular amongst people who really need assistance taking-off, before they have rotated their pedals enough for the pedelec to kick in. The left hand side of your handlebars will be available for fitting a thumb throttle, without clashing with any gear shifters (because the front gears are removed).

Also included are electronic cut-out brake levers, or magnetic cutout sensors which can be fitted to existing levers, to provide a safety cutout feature when braking. We also include a Gear Sensor, which cuts power temporarily while you change gears, to reduce stress and wear on your drivetrain. The existing gear cable is threaded through this sensor.

The market-leading colour LCD mounts over the headstem in the centre of the handlebars, with a loom out to the buttons, for them to be within easy reach. This shows all the functions and stats you could possibly want, on an attractive visual interface. You can choose to set it up with 3, 5 or 9 available pedelec levels.

The final component is a speed sensor. The pick-up sensor is normally mounted to the chain stay beside the rear wheel, with a magnet fitted to one of the spokes.

The package is completed with a quality frame mounted battery, and there are a few different options available based on the distances you want to travel per charge. Mounting to the water bottle lugs in the triangle is ideal, as it’s good to keep the battery weight low and central, to make for a more comfortable and balanced ride.

We only use the top-quality battery chemistry of Lithium tri-metal (Nickel Manganese Cobalt Oxide, or NMC), which is the leading type used for electric vehicles at the moment. Read more on our batteries page. Also find links to sizing templates for the frame-mounting batteries, or you can order a Battery Template Kit by mail, so that you can confirm what fits, and order your ideal battery with complete confidence that it will suit your frame.

If you are planning to DIY your e-bike build, we have a range of helpful videos to assist you, and we’ll also provide a straightforward installation manual with your kit. Or, you might like to attend one of our Training Courses, designed to help you fit your own kit, while learning the ins and outs of e-bike systems more broadly.

Specifications

Specifications

Motor

250w Bafang BBS01 mid-mount motor with inbuilt controller, weight 3.8kg

Speed

Limited within display to 25km/h (road-legal limit)

Position

cranks

Controller

36v 14a, inbuilt, with low-voltage cutout

Controls

Cadence controlled Pedelec, brake cutout levers and 1 sensor, shift sensor, optional throttle (not strictly road legal)

Connectors

Waterproof IP54, colour coded plug and play

Chainring

Standard 46T chainring, choose upgrade to Bling Ring for 42T or 52T options

'Dashboard' Display

Waterproof Full colour 850c / DPC14 vertical multi-function backlit display. Shows wattage, voltage, speed, battery gauge, trip data & odometer. Includes 6km/h ‘walk’ function.

Batteries

Lithium tri-metal (Nickel Manganese Cobalt Oxide), lifespan of up to 1500 charge cycles or more. All styles are lockable & easily removable. Cells used are as per table below.

Warranty

24 months on all parts, and lifetime warranty on installation

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Documentation

Battery Care Guidelines

Download

This Attachment Never Expires.

Charging Practices, Prolonging the life of your Battery Pack, and Important Info for Battery Care

 

36v Road and Pathway Legal (250w) Battery Details

Click links for more details, including sizing templates and cell spec sheets:
BatteryCapacityRangeCellsWeight
Thunder36v 8.8ah30-60kmsSamsung 22F2.8kg
HighLite36v 16ah60-129kmsLG MH13.2kg
Tiger36v 19.2ah80-160kmLG MH14.0kg
Rack36v 19.2ah80-160kmLG MH14.5kg