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.
Geeko Rear 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 for both 250W and 350W 7-10S cassette motor(most motors claim to be 135MM, but actually 142MM-145MM), 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).
- Please note that currently Geeko Motor do not support thru-axle bike.
- Please note that the dropout size of 500W motor is 142mm.
Default and optional customisations
Default black motor with 135MM dropout size and 10MM slot width, fit most of the bicycle rear fork.
We also offer motor customisation service, in case your bike dropout 130MM(rim brake road bike), or slot width 9MM / 8MM.
- 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 36 spokes, more suitable for motor drive
- Spoke tension 25-30kgf
- Supports 16′-29′ wheel size
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.
- 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 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
6 Bottles x 4 Colors
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-Rear Introduction
Geeko-Rear Unboxing
Geeko-Rear Installation
Geeko-Rear 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 Geeko 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:
1. 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) 2. 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, we will provide video instructions.
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. Click here for more details.
Gabriel Leon –
My Geeko rear hub kit works great, I really like the system, very easy to install, thanks.
michel boquelet –
I’ve received the equipment, it’s installed and operational, and everything is perfect. Thanks again for your responsiveness
Martin Barackman (verified owner) –
I installed the Max50100R on our CoMotion tandem bike. We rode 75 miles and still had 20% battery remaining. I’m astonished at how efficient this motor is compared to the old direct drive hub motors that I’ve had on other e-bikes. We were mostly riding with level 1 or 2 pedal assist and using the motor to help on the hills. Hills where we previously needed to shift down to our lowest gear we can now climb on the middle front chain ring. My level of effort for climbing on the tandem is now less than on my lightweight road bike. It’s a real joy to ride. The power comes on smoothly and nearly silently. When pedaling near the speed limit of the motor, there’s just a slight bit of surge as the assist kicks in and out. The throttle is particularly helpful for starting out on a tandem bike. The Bluetooth app is well designed and allows complete control of the motor functions.
Installation was relatively easy. I had a bit of trouble getting the brake disk to line up. I found that if I positioned the non-drive side lock washer on the inside of the dropout, the disk would line up just right with the brake caliper. Because the controller is integrated into the bottle holder, there are far fewer wires to route and manage with this kit than with the others I’ve used. All of the connectors seem tight and waterproof. Considerable force is needed to properly join up the main cable connecting the battery to the motor. If you get an error indicating that the motor is not connected to the battery just push the connector together better and that should fix it.
I am very satisfied with the quality and performance of this kit. The only tweaking I had to do was to tighten a couple of spokes on the wheel. It arrived to northern California in just a little over a month from the date I ordered it. The tracking information was a bit confusing, but it was delivered on time and in good condition. I would definitely put this kit at the top of your list if you are considering a DIY e-bike.
Gerhard Schlosser (verified owner) –
Geeko Hinterrad mit 10-AH-Akku – 2x gekauft
Kundenzufriedenheit ist die beste Werbung und da ist ein gutes und einwandfreies Produkt ebenso wie guter Service das wichtigste. Wenn man die vielen guten Bewertungen liest, macht ihr alles richtig. Viele zufriedene Kunden schreiben keine Bewertung, nur wenn mal was schief geht, wird schnell und oft negativ bewertet. Aber davon gibt es hier ja zum Glück nicht viel.
Ich gehöre zu den positiv begeisterten Kunden, die sich schon das zweite Set bestellt haben und auch Werbung bei Freuden machen.
Einzige Kritik von mir ist die Batterieanzeige, auf die man sich wenig verlassen kann, wurde aber hier schon mehrfach geschrieben. Hier würde ich mir ein Update der Software wünschen, wenn es geht. Dafür überwiegen sämtliche Vorteile gegenüber einem reinen eBike. Ich kann alle positiven Eigenschaften bestätigen, die in allen Bewertungen stehen. Bitte auch die gute Qualität und den Top-Kundenservice beibehalten, so was lohnt sich immer.
Die Smartphone-App finde ich hervorragend, benutze aber im Alltag kein Handy auf dem Fahrrad, deswegen Bedienung nur über die Tasten auf dem Akku genügt mir. So viel braucht man während der Fahrt auch nicht ändern.
Zur Erklärung meiner Bilder: Ich habe das zweite Set erst mal in das gleiche Fahrrad eingebaut, zum Vergleich wegen der Farbe. Das erste Set ist mit Motor in schwarz, das zweite Set ist mit Motor in silber. Absolute Kaufempfehlung von mir.
Gina –
Vielen Dank, dass Sie sich die Zeit genommen haben, die Bewertung für uns zu vervollständigen, sehr geschätzt! Möge das Geeko-Kit ein guter Begleiter für Sie sein!
Gina –
Vielen Dank, dass Sie sich die Zeit genommen haben, die Bewertung für uns zu vervollständigen, sehr geschätzt! Möge das Geeko-Kit ein guter Begleiter für Sie sein!
Stephen –
The Geeko kit has arrived and been installed. It looks great on the bike. Thank you so much for all your help in ordering, preparing and sending the kit, it is greatly appreciated! Thank you very much and have a great day and weekend!
Jesse Cole (verified owner) –
I have the 7.8AH battery with the 350w rear hub which I purchased to make climbing the hills between my house and town a little more enjoyable on my old, beloved townie. This kit is fantastic. It looks super clean and stealthy, is well built, and works amazingly. I am really impressed with the butter smooth way the power is applied . The weight and motor drag when off is almost unnoticeable for me. I peddle this thing at least 50% of the time with it off. Until I decide I want the power, it just feels like riding my trusty old bike. I am about 210lbs and live in the mountains of British Columbia, Canada. I chose the 350w motor because I needed the 130mm hub width to accommodate my bike and I needed it silver to match my front rim. I otherwise may have chosen the 500w motor but, after riding it a bunch, I feel like this is the perfect amount of power for me. Also, the hub is pretty small and quiet, adding to the stealth vibes. Because I peddle this system a lot unpowered it is hard to gauge the battery life but I certainly find it more than sufficient and with daily riding I am charging it every 1.5-2 weeks. Did I say I love this system?
Gina –
Thank you for taking the time to complete the review for us, much appreciated! May the Geeko kit be a great companion for you!
Claus Harfst –
I recently ordered a rear wheel kit from you.
Thank you very much for the smooth processing and quality product. It was really fun to install this technology and enjoy the ride
JML ELECTRONIC –
I inform you that I have received the package.
In very good condition, very well packaged.
I installed everything is fine.
Thank you for your service.
alain.alarcon (verified owner) –
Reçu le kit comme prévu, très facile à installer pour celui qui a l’habitude de bricoler un peu son vélo,.
Je relaisserai un commentaire lorsque j’aurai fait plusieurs km avec.
Par contre pour la gâchette elle est prévue pour un cintre de petit diamètre si vous avez un cintre de gros diamètre impossible de la mettre.
Gina –
Thank you for taking the time to complete the review for us, much appreciated! May the Geeko kit be a great companion for you!
user-130276 –
awesome
Gina –
Thank you for taking the time to complete the review for us, much appreciated! May the Geeko kit be a great companion for you!
Gerold Meinke –
Thanks – great product! This is my second order
Henrich Stuke –
I have been using your 100g post motor for over a year now and I am very happy with your product.
William –
I was so happy to receive my kit
I’m so happy and excited because I’m so excited to have this beautiful wheel now.
Bernie –
All is good and I finally took it out for a ride! Love it!
Thank you for all your help. Service is great!
Glenn –
Packaging is very strong, after receiving the goods slowly installed, during the period to help customer service, they are not tired of answering a lot of questions, the attitude is very good, so that I successfully installed the kit, and then come back to evaluate after I have been on vacation to go out and test ride.
Klaus Maciek –
I ordered the Geeko rear kit from you guys
and installed it, it works great, I’m very happy.
With best regards
berber pole –
This is so interesting! I never knew that before. Thanks for the info.
Jesse Cole –
Hi, I received my kit the other day and it’s fantastic. The build quality, ride and look of it is much better than I could have ever imagined.
Thank you for all your help and for making this awesome system
Sven Franke –
I have just installed the first kit i have received an it is really great and
does have more power then i thought it would.
Thomas Hayes –
Thank you very much for sending me the spare battery and other accessories, which, to my delight but not surprise, arrived at the agreed time, packaged very securely and considerately. After more than four months of regular use, my bicycle’s rear wheel replacement has exceeded my most optimistic expectations with its easy installation, good reliability and wide range of available performance.At the age of 77, I am now able to cycle easily and happily wherever and whenever I want, despite encountering any gradient in the road surface.
Thank you again for most effectively and successfully providing cyclists with a discreet but efficient and economical way to greatly increase the enjoyment and range of their cycling activities.
Balıkesir / Dursunbey Kurumsal SEO –
Keskin Toptan Kadın Giyim | I came across positive reviews of RENE Wholesale Textile and Clothing Solutions online, and I decided to place an order immediately. I’m extremely satisfied with the outcome.
Gina –
Thank you for taking the time to complete the review for us, much appreciated! May the Geeko kit be a great companion for you!
SIMSCRIPT Nedir? –
Casio | MAFA Teknoloji’nin sunduğu içeriklerle sektördeki yenilikleri daha yakından takip ediyorum.
Gina –
Hello, thank you for your interest and have a nice day!
Karabük / Safranbolu Web Tasarım –
Şehitkamil / Gaziantep Toptan Bayan Giyim | RENE Toptan Tekstil ve Giyim Çözümleri’nde alışveriş yapmak her zaman keyifli bir deneyim. Ürünlerinin kalitesi ve hizmet anlayışları gerçekten takdire şayan.
Gina –
Thank you for taking the time to complete the review for us, much appreciated! May the Geeko kit be a great companion for you!
Yozgat / Kadışehri Kurumsal SEO –
Başkale Toptan Giyim | RENE Toptan Tekstil ve Giyim Çözümleri’nin müşteri hizmetleri gerçekten mükemmel. Herhangi bir sorunuz olduğunda hızlı ve etkili bir şekilde yardımcı oluyorlar.
Gina –
Thank you for taking the time to complete the review for us, much appreciated! May the Geeko kit be a great companion for you!
Batman / Hasankeyf Web Tasarım –
Pınartepe / Büyükçekmece Beton Kesme | Rüzgar Karot’un sunduğu hizmetten çok memnun kaldım, her aşamada kalite ve güven sağladılar.
Gina –
Thank you for taking the time to complete the review for us, much appreciated! May the Geeko kit be a great companion for you!
Florian Cavaiotti –
Thank you for this product, looks good and working well for now
H-G Kokot (verified owner) –
Nach über 100km Fahrtzeit mit dem Geeko-KIT bin ich sehr zufrieden wie alles super funktioniert. Von der Bestellung bis zum einfachen Einbau ebenso. Auch diverse Fragen per E-Mail wurden schnell, kompetent und freundlich beantwortet.
Gina –
Thank you for taking the time to complete the review for us, much appreciated! May the Geeko kit be a great companion for you!
Heinz-Gerd Kokot (verified owner) –
Nach über 100km Fahrtzeit mit dem Geeko-KIT bin ich sehr zufrieden wie alles super funktioniert. Von der Bestellung bis zum einfachen Einbau ebenso. Auch diverse Fragen per E-Mail wurden schnell, kompetent und freundlich beantwortet.
Vielen Dank
Gina –
Thank you for taking the time to complete the review for us, much appreciated! May the Geeko kit be a great companion for you!
Hedef Kitle Analizi –
MAFA Teknoloji’nin sunduğu içerikler gerçekten bilgilendirici, bu tür yazıları okumaya devam etmek istiyorum. | HPE – ProLiant DL325 Gen11 Rack Server
Ulrich Henke –
Vor einigen Wochen habe ich einen Umbausatz bestellt. Er kam schnell in zwei Paketen an. Beim Auspacken war ich beeindruckt von der Qualität, der Art und dem Umfang des Zubehörs.
Der Einbau verlief reibungslos und war in einer Stunde erledigt. In der Zwischenzeit habe ich mein 12 Jahre altes Fahrrad überholt. Mit der neuen Kette bin ich heute zum ersten Mal mit meinem “neuen E-Bike” gefahren.
Ich war sehr aufgeregt. Der Boost ist fast geräuschlos. Alles läuft perfekt. Auch die App auf meinem Handy ist einfach, übersichtlich und leicht zu verstehen. Das ganze System macht einen hochwertigen Eindruck und sieht nicht wie eine Bastelei aus.
Ich bewerte es mit 5 von 5 Sternen.
Ich wünsche Ihnen weiterhin viel Erfolg mit Ihrem Produkt. Gerne können Sie auch meine Bewertung veröffentlichen.
Ich danke Ihnen sehr.
Bob Wright –
We just installed the retrofit and it looks great
Paul Lange –
I am very happy to say that I have received my Geeko conversion kit and it has now been fitted to my Scott trail bike. Because of the stormy weather I have only ridden the bike a short distance, but even so I am impressed by the quality of the kit and the riding experience. I will send a photo in due course.
Laurent PELSY-JOHANN –
Bonjour, je tenais à vous informer que je suis très heureux pour cet achat qui me satisfait totalement et qui est très performant
Matthias Kulka –
vielen Dank für die Sendung des Motors 35100R und der Lampen.Ich habe den Motor eingebaut und er läuft gut.
Gina –
Vielen Dank, dass Sie sich die Zeit genommen haben, die Bewertung für uns auszufüllen. Das wissen wir sehr zu schätzen!
Möge das Geeko-Kit ein toller Begleiter für Sie sein!
Sascha Florian Voss –
Iam from germany and i have buy the Geeko rear kit and installed it now. It works fine.
Leon –
I am a loyal customer of Geeko kits. Parts are to the specifications I provided and nothing is missing.
They said the delivery time would be 40 days, but surprisingly, it arrived in less than a month.
I recommend everyone to buy this product, it’s really great
Andreas –
I have a Geeko kit and it was very exciting to receive the kit in less than a month.
I installed it in 1 hour and it worked great without any issues. I have been using it for 3 months and I am very satisfied with it
Awalludin –
very good
A perfect purchase. I installed it immediately upon receiving it. Kettle batteries are very small and beautiful. I can finally ride long distances with ease.
Kip Schlinker –
I just got the rear wheel kit. Looks great. After trying it out, I will give you a perfect evaluation.