If you want to turn your Brompton into an electric Brompton, then Geeko-Brompton is your great choice.
The Geeko-Brompton is an e-bike conversion kit designed specifically for the Brompton, it retains all the features of the Brompton perfectly, you don’t need to change anything about the Brompton including the fork, brakes and gear shifting, and you can fold it up completely as before. It looks exactly like your original Brompton, just 4KG heavier.
Thanks to the custom motor made specifically for the Brompton’s narrow forks, you can mount the motor very easily without bending the forks. With the cleverly designed PAS sensor, you can quickly install it without removing the cranks, the PAS sensor has 12 magnets and is highly sensitive and reliable. We’ve included a bottle adapter to hold the Geeko bottle battery on the Brompton, the perfect solution to the Brompton’s lack of bottle cage screw holes. Everything to save your time and keep your Brompton just like the original.
Geeko Front Motor & PAS Sensor
- Dropout 74MM, slot width 8MM, specifically for Brompton
- Super lightweight, only 1.85KG
- BLDC geared motor, with durable and reliable gears
- With an impressive high torque(Max. 35NM) in a small size
- Double-wall aluminum rim
- Contains high-quality PVC tire pads that can withstand Max. 100 psi tire pressure
- Rim runout and deflection are both less than 0.5-1 MM
- 13# spokes, 2.2MM diameter, made of high-carbon steel
- Made of 28 spokes, more suitable for motor drive
- Spoke tension 25-30kgf
Default and optional customisations
Default Geeko wheel is a black rim with silver sides(rim brake and disc brake compatible), black spokes and a black motor.
We also offer wheel customisation service, in case you want pure black disc brake rims, silver rims, silver spokes, or silver motor.
Zodiac – New generation of cadence sensors
- Fits 98% of bike frames.
- Simple installation without dismantling the cranks.
- 3 times the magnet sensing area.
- HMI panel.
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
3 Bottles x 4 Colors
Bottle Bracket
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
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-Front Introduction
Geeko-Front Unboxing
Geeko-Front Installation
Geeko-Front Operation
Independent Reviews
EMOBILIST--In 60Minuten vom BIO- zum EBIKE mit dem 100G Geeko Umbausatz
Paul's Views & Reviews--Swytch vs. 100G - which is the best e-bike conversion kit?
MobiliTest--100g tech , Un Kit pour electrifier son vélo VRAIMENT à la portée de TOUS ! (TUTO)
Zero Pionier--vom Fahrrad zum eBike : 100G.tech Geeko Umbausatz "REAR" / no Pendix & Bafang
"Geeko" Anywhere on Your Bike
With 4 types of bottle cage adapters, you can fix Geeko Bottle anywhere on your bike.
Accessories You May Need
Specifications & Manuals
Policies
Shipping
Shipping time / Shipping cost
/ Order tracking / VAT & Customs
Warranty & Return
Warranty / 7-day return policy
/ Damages and issues, etc.
Flexible Customisations
FAQ
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.
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.
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.
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.
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.
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.
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.
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:
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.
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.
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.
Please check below link:
Yes, with bottle cage adapters you can mount Geeko bottle anywhere on your bike.
Click for details:
Yes, it will definitely help on long rides. Click link below to buy:
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:
When you receive your Geeko kit, all parameters are already set to their optimal state. If you need to set them yourself, please contact sales@100g.tech.
It is important to note that setting the parameters yourself may result in Geeko kit not working properly and pose an unnecessary regulatory risk.
Campaign & Rewards
Show Geeko, Get $50 Rewards
- Every Geeko user is warmly invited to participate in our campaign.
- Show your objective and unbiased videos about Geeko.
- Easy job for everyone.
EU Warehouse & Accessories Pre-installation
Your order may include Geeko kit (Geeko-Front/Rear/Dual) and other accessories(cassette, brake disc, light, light cable, additional throttle, etc.).
If Geeko kit in your order is in EU warehouse:
- Geeko kit in your order will be shipped in 2 parcels from EU warehouse, shipping time 3-7 days.(One parcel with battery and bracket controller, the other parcel the rest of the Geeko kit).
- Other accessories in your order will be shipped separately in 1 parcel from China factory by air, shipping time 8-12 days.
Note that in this case you will need to install some accessories yourself. Don’t worry, the installation of the accessories is very simple, please follow instructions below.
If Geeko kit in your order is NOT in EU warehouse:
- Your order will be shipped in one parcel from China factory, and the accessories will come pre-installed. Normally shipping time 25-30 days.
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