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geeko rear installation
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Geeko-Rear

Rated 4.77 out of 5 based on 70 customer ratings
(70 customer reviews)

$578.00 – $930.00

Mini-25052R
Mini-25070R
Mini-35070R
Prime-25078R
Prime-35078R
Prime-25100R
Prime-35100R
Solid-25100R
Solid-35100R
Max-25150R
Max-35150R
Max-50100R
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16"
20″-406
20"-451
22"
24"
26″
27.5″
28″ / 29er / 700c
7S
8S
9S
10S
11S
12S
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SKU: Geeko-Rear Category: Geeko
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  • Description
  • Specifications
  • Warranty
  • Reviews (70)
Description

Geeko-Rear is the right ebike kit of cycling enthusiasts for daily commute, long distance riding, or serious mountain biking.

Geeko-Rear is a revolutionary and innovative eBike conversion kit consisting of only two parts, Geeko motor and Geeko bottle.

  • Geeko rear motor integrates the 100G patented smart cassette sensor, which can detect cadence and gear ratio at the same time and ensuring accurate assist power all the time.
  • Geeko bottle is designed based on exactly bottle appearance, it perfectly integrates battery, display and controller, and the 3-in-1 Geeko bottle makes the Geeko kit installed on the bicycle very natural, neat and beautiful.
Play Video about geeko rear kit

Geeko Rear Motor

Geeko-Motor
  • The optimized motor cable outlet can perfectly protect the motor cable from breaking when the bicycle falls and hits the motor cable.
  • Well-designed motor, real 135MM dropout size(most motors claim to be 135MM, but actually 142MM-145MM), This means you can easily mount Geeko motor to your bike frame without having to forcefully open the bike’s rear fork.
  • BLDC geared motor, with durable and reliable gears. The gear ratio is 4.33, which ensures that the motor can output a maximum torque of 48NM (500W motor).
Geeko-Motor with cassette sensor
  • The patented smart cassette sensor is mounted in the motor, that means you don’t need any cadence sensor in place of the bottom bracket. (Such sensors are prone to failure).
  • The smart cassette sensor can detect not only cadence but also gear ratios. Whether you increase or decrease the pedal cadence, or switch bicycle gears, it can immediately detect and notify the controller to adjust the assist power. This assures that you can get comfortable assist power all the time. (The cadence sensor has no way to detect the gear ratio).
Bionic Torque Power

Bionic torque power is an electric power distribution and control system independently developed by 100G.

  • The assist power is more linear and natural, especially for multi-gear bikes.
  • Maximum speed can be reached in every level.
  • The difference between the levels is the boost power of motor, (in other systems, the difference between the levels is the speed).
  • The maximum speed and maximum current of each level can be set independently.
  • Auto uphill enhancement, which means it automatically increases power when going uphill.
  • More power saving, the cruising range is 50% higher than other power assist systems. According to the test, using our system, the 10AH battery can last 130 kilometers, and the 15AH battery can last 200 kilometers.

Geeko Bottle

4 Bottles x 4 Colors

Geeko Bottle Family

Bottle Bracket

Bottle Bracket
Intelligent display

Intelligent Display

The intelligent display is a bottle cap design that integrates perfectly with the bottle battery. It has a digital screen with 3 buttons and with Bluetooth 5.0 inside. The display is the most traditional HMI for electric bicycles. With the display, you can:

  • Check battery level
  • View current equipment
  • View error codes. If the system fails, the error code will flash, which is very useful for quickly locating and troubleshooting.
  • View controller connection status
  • View APP connection status

With a combination of 3 buttons you can:

  • Power on/off system
  • Adjust 0-5 levels
  • Set system parameters, such as wheel diameter, speed limit, etc.

APP

Using our free app will be a cool experience and you will get richer UI interactions. Our APP is simple and easy to use, with only simple + and – buttons, the elderly and children can also use it without any difficulty. The APP is always Ready-to-Use, no additional settings are required. Just open APP, and ride, it should be that simple.

Smartphone APP as an extended HMI, it’s not mandatory, but it is great to have. With the app, you will be able to:

  • View real time speed
  • View battery power
  • View ride data
  • Adjust 0-5 levels
  • Check system failures
  • Modify system parameters
  • Upgrade controller firmware
100G APP
Controller

Controller

  • Controller is hidden inside a aluminum case with heat dissipation blade at the bottom of the bracket.
  • Real-time temperature monitor allows the controller to gradually reduce power output when the temperature is too high. This temperature protection ensures long-term reliable work of the controller.
  • The controller circuit board is fully potted with thermally conductive adhesive, ensure IPX7 waterproof level of controller, which means that the controller can work in any rainy weather.

Introduction Videos

geeko rear installation
Play Video about geeko rear installation

Geeko-Rear Introduction

geeko rear unboxing
Play Video about geeko rear unboxing

Geeko-Rear Unboxing

geeko rear install
Play Video about geeko rear install

Geeko-Rear Installation

geeko rear operation
Play Video about geeko rear operation

Geeko-Rear Operation

More Videos

Independent Reviews

emobilist
Play Video about emobilist
rating star 1

EMOBILIST--In 60Minuten vom BIO- zum EBIKE mit dem 100G Geeko Umbausatz

Paul
Play Video about Paul
rating star 1

Paul's Views & Reviews--Swytch vs. 100G - which is the best e-bike conversion kit?

MobiliTest
Play Video about MobiliTest
rating star 1

MobiliTest--100g tech , Un Kit pour electrifier son vélo VRAIMENT à la portée de TOUS ! (TUTO)

Zero Pionier
Play Video about Zero Pionier
rating star 1

Zero Pionier--vom Fahrrad zum eBike : 100G.tech Geeko Umbausatz "REAR" / no Pendix & Bafang

More Reviews

"Geeko" Anywhere on Your Bike

With 4 types of Geeko Adapters, you can fix Geeko Bottle anywhere on your bike.

Above the top tube
Below the top tube
Seat tube
Below the down tube
Handlebar
Front fork
Seat post
Saddle
Geeko Adapter

Flexible Customisations

Motor customisation service

Motor Customisation Service

I have special requirements for motors

pure black wheel

Wheel Customisation Service

I need a pure black/silver wheel

customized light cables

Customized Light Cables

Will Geeko kit support lights?

custom-display

Customised Handlebar Display Function

I need a display on my handlebar

Dual Pack

Geeko Dual Pack

Converts Geeko-Rear and Geeko-Front to Geeko-Dual

additional throttle

Throttle for 250W Geeko Kit

I need a throttle for 250W Geeko kit

FAQ

Does Geeko motor support thru axle?

Unfortunately, Geeko motors do not support thru axle.

Will Geeko fit my bike?

Geeko kit is designed to fit most bikes. Simply put, as long as your bike is not thru axle, Geeko kit will fit. 
Specifically, the Geeko-Rear kit and the Geeko-Front kit have some additional special requirements.

Geeko-Rear

Geeko-Rear requires a rear fork spacing of 135mm and a slot width of 10mm, as shown below.

Also we provides motor customisation service for fork spacing 130MM if your bike is a rim brake roadbike.

dropout

Geeko-Front

Geeko-Front requires a fork spacing of 100mm and a slot width of 10mm; and space is required at the pedal bottom bracket to mount the sensor, as shown below.

We also provide motor customisation service if your have a folding bike with fork spacing 80MM/74MM. There is also a special version fork slot width 8MM for Brompton bikes. 

Front 

Does Geeko motor have a magnetic resistance?

Geeko motor has a clutch inside. When the bike glides forward, the motor hub is rotating while the magnet inside is stationary, the motor has no magnetic resistance at all and glides very smoothly, just like a normal bike, you can ride it easily.

Can Geeko kit work without APP and phone?

Yes. Simple is one of the product philosophies of Geeko kit. When we designed Geeko, we wanted Geeko to always be ready-to-go. APP is not mandatory, we believe everyone can enjoy a pure and simple ride without APP. But if you like, you can use it.

How to know my wheel size?

In most case wheel size should be written on the side of your tyre. It will look like this: 700c x 38, or 26” x 1.95.

wheel size

Can I keep my cassette?

Yes, by using the tools we provide, you can usually keep your own cassettes.

Geeko-Rear kit do not include cassette by default. You can also purchase and pre-assemble cassette with the link below.

But if your bike is 7S or 12S cassette, we strongly recommend that you purchase and pre-assemble cassette to ensure compatibility.

https://www.100g.tech/product/cassette/

Advice on both 7S and 12S cassette.

Most of 7S is flywheel, which means you need to replace it with a 7S cassette.

For 7S and 12S cassette, some special conversion fittings are required for installation. Therefore, to avoid compatibility issues, we strongly recommend purchasing and pre-assemble cassette via the link below.

https://www.100g.tech/product/cassette/

Is Geeko kit compatible with disc brake?

Yes, Geeko kit is compatible with rim brakes and disc brakes.

Geeko kit do not include disc by default. Normally, you can keep your disc if it is 6 screwed on.

If you need a new disc, or if your disc is not 6 screw-on, you can purchase and pre-install disc via the following link:

https://www.100g.tech/product/disc/

Do I have to pay customs and VAT?

The price already includes customs duties and VAT, no additional charges. 

Shipping is a door-to-door service and all you have to do is wait at home to receive your goods.

How long does it take to transport?

Shipping is a door-to-door service and usually takes 20-25 days from China to your home if you are in the EU and 25-30 days from China to your home if you are in the USA.

Do you have a local dealer/warehouse?

We have dealers in Germany, France, Poland and the USA, you can email us for their contact details.

If the Geeko model you need is not in stock at our dealers, you can buy it on our website. The usual shipping time is 20-25 days. Shipping is a door-to-door service and all you have to do is wait at home to receive the goods.

What is your warranty & return policy?

Please check below link:

https://www.100g.tech/warranty-return-policy/

Can I mount Geeko bottle in another position on the bike?

Yes, with bottle cage adapters you can mount Geeko bottle anywhere on your bike.

Click for details:

https://www.100g.tech/product/bottle-cage-adapter/

Can I buy a spare battery?

Yes, it will definitely help on long rides. Click link below to buy:

https://www.100g.tech/product/spare-geeko-battery/

Can Geeko have a handlebar display?

We believe that the Geeko kit with both bottle cap display and smartphone APP is the perfect choice for you. But if you prefer a traditional handlebar display, we can customise a traditional Geeko kit with a handlebar display for you.

Click link below for details:

https://www.100g.tech/product/custom-display-function/

Can I adjust parameters such as wheel size, etc.?

When you receive your Geeko kit, all parameters are already set to their optimal state. If you need to set them yourself, please contact [email protected].

It is important to note that setting the parameters yourself may result in Geeko kit not working properly and pose an unnecessary regulatory risk.

More
Specifications

Geeko-Rear Kits

Geeko Model Mini-25052R  Mini-25070R Mini-35070R  Solid-25100R   Solid-35100R   Prime-25078R   Prime-35078R   Prime-25100R   Prime-35100R   Max-25150R   Max-35150R   Max-50100R
Motor Model MT-3625R MT-3625R MT-3635R MT-3625R MT-3635R MT-3625R MT-3635R MT-3625R MT-3635R MT-3625R MT-3635R MT-4850R
Motor Power 36V250W 36V250W 36V350W 36V250W 36V350W 36V250W 36V350W 36V250W 36V350W 36V250W 36V350W 48V500W
Battery Model GB-36052-Mini-B3 GB-36070-Mini-B3 GB-36100-Solid-B3 GB-36078-Prime-B3 GB-36100-Prime-B3 GB-36150-Max-B3 GB-48100-Max-B3
Bottle Mini Solid Prime Max
Battery Capacity 36V5.2AH 36V7.0AH 36V10.0AH 36V7.8AH 36V10.0AH 36V15.0AH 48V10.0AH
Charger 42V2A 42V3A 42V2A 42V3A 42V3A 54.6V3A
Mileage in PAS mode at level 1 (km)* 65 85 130 95 130 200 130
Mileage in throttle mode (km)* N/A N/A 28 N/A 40 N/A 30 N/A 40 N/A 60 40
*Regarding the mileage, it is obtained under the following ideal conditions: flat road, no wind, 30 degrees Celsius, the rider’s weight is 60KG, the actual mileage will vary due to different conditions

Geeko Rear Motors

Geeko Rear Motor
Motor Model MT-3625R MT-3635R MT-4850R
Power 250W 350W 500W
Rated Voltage(V) 36 48
RPM 290 350 450
Contruction Gear Drive
Gear Ratio 4.33
Torque(NM) 38 40 48
Weight 2.6 3.5
Diameter(mm) 132 150
Efficiency(%) >80%
Cable & Connector 10 pins waterproof connector
PAS Sensor Built-In Cassette Sensor
Cassette Default version: 7-10S
Special version: 11-12S
Spoke Holes 36
Brake Disc brake or V brake
Installation Width (mm/OLD) 135 142
Max. Speed (KM/H) 20″ 22 27 35
26″ 29 35 45
27.5″ 31 37 48
700C 32 39 50
Waterproof IP65
Certificates CE

250W Rear
500W Rear

Geeko Bottles

Mini-C Size
Solid-C Size
Prime-C Size
Max-C Size

Geeko Batteries

Model GB-36052-Mini-B3 GB-36070-Mini-B3 GB-36100-Solid-B3 GB-36078-Prime-B3 GB-36100-Prime-B3 GB-36150-Max-B3 GB-48100-Max-B3
Bottle Case Mini Mini Solid Prime Prime Max Max
Capacity 36V 5.2AH 36V 7.0AH 36V 10.0AH 36V 7.8AH 36V 10.0AH 36V 15.0AH 48V 10.0AH
Panel B3
Height(mm) 222.5 222.5 222.5 292.5 292.5 292.5 292.5
Diameter(mm) 76 76 87 76 76 87 87
Weight(kg) 1.5 1.5 1.8 1.9 1.9 2.6 2.3
Cell Type 18650 18650 21700 18650 21700 21700 21700
Cell Brand DC LG/Samsung LG/Samsung DC LG/Samsung LG/Samsung LG/Samsung
Waterproof IPX7

Items Weight

Items Weight(KG)
Battery Mini 1.3
Prime 1.8
Max 2.6
Motor Wheel 250W 2.6
350W 2.6
500W 3.5
Controller 0.4
Charger 0.5
Phone Holder 0.2

Package

Wheel Package Size(CM) Package Weight(KG)
20″ 50X50X25 9
26″ 60X60X25 9
27.5″ 60X60X25 9
28″ / 29er /700C 65X65X25 9

Warranty

Warranty

Items Motor Controller Charger Battery Phone Holder
Warranty (Months) 24 24 24 12 3

After-Sale Service

  1. Our goal is customer satisfaction!
  2. After you received the goods, if you do not know how to use it, please feel freely to contact us, we will try our best to deal with all problems.
  3. During the warranty period, if product parts have problem (like motor, controller, battery, charger, etc.), we will provide new parts for free(You need to provide strong evidence that shows these parts have been damaged), you only need to bear the freight. At the same time, we also can provide free technology consulting.
  4. Within 5 days after you received the goods, if you find there are problem with goods, please contact us.

Local Dealer & Service

We have distributors in some countries or regions, so that you can receive our products faster and provide more timely and accurate after-sales service. Please contact us and we will recommend a suitable distributor to you.

 

Warranty & Return Policy
Reviews (70)

70 reviews for Geeko-Rear

  1. Rated 5 out of 5

    Joerg Resch – December 12, 2022

    Amazing product, very simple and fits my bike perfectly.

  2. Rated 5 out of 5

    Ute Schneider – December 10, 2022

    After ordering the kit, I found that I needed a light function. And the Geeko team did it. I received the light cables after 2 weeks and it worked fine. Really appreciate their support.

  3. Rated 5 out of 5

    Rudolph Martin – December 7, 2022

    Ich bin sehr zufrieden mit meinem neuen Geeko Kit, ich hatte bisher viel Spaß.

  4. Rated 4 out of 5

    Hund Joachim – December 3, 2022

    A great experience to ride my bicycle now, it’s fun! And it makes my daily way to work much easier and faster.

  5. Rated 4 out of 5

    Tyler – November 30, 2022

    It’s a great little motor to get you up hills while still getting exercise.

  6. Rated 5 out of 5

    Max – November 25, 2022

    This is the first week that I have used it and I am quite impressed. I will definitely be riding more often now that I have my great Geeko helper installed. Thanks for making a quality product.

  7. Rated 5 out of 5

    Xavier – November 25, 2022

    Kit came, easy to install on to my MERIDA MTB. Rides great with just the right amount assistance for me. Getting up hills is so much better now.

  8. Rated 4 out of 5

    Willis – November 23, 2022

    The kit arrived in excellent condition and delivery was faster than expected.

  9. Rated 4 out of 5

    Bert – November 20, 2022

    Very well engineered and manufactured equipment. Mostly easy to assemble.

  10. Rated 5 out of 5

    Kolt – November 18, 2022

    Kit was easy to install. Love riding around town and on trails. Great for going up hill, when it’s windy or I’m just plain tired. Recommending to my friends. They also like it much!

  11. Rated 5 out of 5

    Hugo – November 15, 2022

    Awesome product, brings much riding joy.

  12. Rated 4 out of 5

    Herbert – November 13, 2022

    Quite impressed with the kit which works as promised. Installation wasn’t too difficult; the instruction video was very helpful.

  13. Rated 5 out of 5

    Felix – November 11, 2022

    I installed the Kit and I am very excited.
    My wife too, so I would order a second Kit for my wife.

  14. Rated 5 out of 5

    Theodore – November 8, 2022

    After measuring my bike fork I could determine the kit would fit. After delivery, all parts seem quality and fit together well. Exactly what I need.

  15. Rated 5 out of 5

    Baron – November 5, 2022

    I purchased the kit as a motivation to get back to bike riding and I am really enjoying my rides!

  16. Rated 5 out of 5

    Neville – November 1, 2022

    Works great on my Specialized hybrid. Perfect for when my old knees need a break.

  17. Rated 5 out of 5

    Maria – October 31, 2022

    Water bottle-styled battery is a nice design to keep my bike looking like a traditional bike, rather than an e-bike. It comes off easily from its bottle holder while having a lock to secure it when in use. Overall, very straightforward to use and has drastically made my weekly commute much easier and enjoyable, especially when going over hills.

  18. Rated 4 out of 5

    Brian – October 28, 2022

    Fast delivery and strong package. I like the cap display, unique design.

  19. Rated 5 out of 5

    Karter – October 24, 2022

    Works well. Very happy with my Geeko.

  20. Rated 5 out of 5

    Kuji – October 20, 2022

    I purchased Geeko conversion kit for a bike and so far I love it. I am considering purchasing 2 more.

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