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(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).
- 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
4 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-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.
Flexible Customisations
FAQ
Unfortunately, Geeko motors do not support thru axle.
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 [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.
Valour –
By far the simplest components and easiest assembly of any rear wheel e-hub kit I have found. Bought 1 last year, and came back to buy another for a different bike.
Dalibor –
The 250 watt wheel is perfect assist for my 15 mile round trip commute. Easy to install on my Fuji road bike & works great. Nice for accelerating, hills & headwind. Adds some weight but still light enough for me to hop curbs.
Darryl –
So easy to put on and easy to use. Great product.
Jericho –
My first electric conversion kit came from England (via China of course). The Geeko is much zippier and the “water bottle battery” is superior because of the lower center of gravity.
It is a godsend to old guys like me who need a little help especially on hills. Makes biking fun again. It is also a surprise that there is battery capacity indicator to remind me when to charge.
Wilson –
Very well thought out. No problems installing it and a pleasure to use.
Babi –
The product was easy to install on my MTB; all the power and speed I expected.
Shawn –
I didn’t expect the 350 watt to be that powerful while not peddling. Wow, was I wrong! My mom loves that she can stop peddling if needed, and no longer has any issues with hills or going on longer rides now.
Great product, thanks again!!
Yogesh –
Great product. I plan to buy at least one more and a couple batteries for the extra range.
Erling –
Look no further, this is absolutely amazing, I was recommended by my colleague and I can’t praise it enough. Though I had trouble with my screen, they were so helpful and sorted me out straight away.
Jake –
Went out for a bicycle ride this afternoon on the bikes converted with Geeko, wife likes the e assist.
Kim –
My doctor suggested me not to cycle as my knees are hurt . As I don’t drive I didn’t have any other means of transport, so I thought I’d give it a go, now I can go anywhere easily and no pain in my knees as the bike does the hard work.
Kuhne –
As advertised and all I could do here is repeat what other excellent reviews have said. Good service and nice follow up by Company to be sure all is okay. I am inept at mechanics, however, no problem installing the system. Had ridden a fair distance a week ago and very good experience. I do not hesitate to recommend this product.
Mallorca Lee –
Things happen and things go wrong but it’s how they are dealt with that makes all the difference.
David Boyle –
It’s very tidy bike and my second one from 100G , I highly recommend their conversions.
Peta Martin –
Absolutely love it. Thanks very much. Looking forward to many long family cycles
Jürgen Buhl (verified owner) –
sorry, es sind sogar 12 mm mehr Hinterbaubreite nötig gewesen
Jürgen Buhl (verified owner) –
ich ging davon aus, dass auch die Max-50100R Version einfach zu montieren ist.
Enttäuscht musste ich beim Versuch das Hinterrad ein zu bauen, feststelllen, dass die Hinterbaubreite meines Canondale MB zu schmal war ( 130 mm ) Keinen Schimmer hatte ich dass es Unterschiede gibt, mein erworbenes Exemplar 7 mm mehr Platzbedarf verlangt. Ich musste meinen schnellen Einbau abbrechen und mir etwas einfallen lassen. Auf der Suche nach einem neuen passenden Rahmen war ich nach einiger Zeit etwas genervt und entschied das Unterfangen pausieren zu lassen bis mir eine Idee kommt.
Die hatte ich schon ein paar Tage später , es dauerte mit der Umsetzung aus Zeitmangel, aber das Ergebnis hat sich gelohnt, nach einer Woche hat sich der Hinterbau meinem Wunsch gebeugt und hat nun satte 12 mm zugelegt, also dem Einbau stand nun nichts mehr im Weg und war dann auch innerhalb einer Stunde erledigt .
Fazit: wenn der Rahmen passt ist das alles kein Problem, ich habe nachträglich dann nachgesehen und festgestellt, dass das Einbaumaß tatsächlich bei den technischen Daten zu finden ist.
Jetzt bin ich auf den ersten Test gespannt.
Ian Vickery –
Such a great option when you have a perfectly good bike already! Plus better value than buying a full ebike. We found it very easy to fit ours with the instructions provided, together with videos online. It took us approx 60-90 minutes – including tidying up all the wires and fitting the controls.
Harvey –
Excellent conversion. Excellent value. I have been out on the bike a couple of times so far. Love it. Have a mountain bike I’m thinking of converting as well.
Gerald –
War schnell eingebaut und passt. Funktioniert einwandfrei. Auf jedenfall eine Super alternativ zu den billigen Amazon set mit den Bremshebelsytemen.
Flavio –
The kit worked as expected, the instructional video was great help. I did not use the mobile phone holder or App yet, just the LED display unit seems sufficient for simple use. No long trips taken yet, so unable to comment on battery life. I will buy a 2nd unit to convert my old mountain bike.
Lyam –
After a 12 mile ride at an assistance level of 2 and the battery was still at 85%. Fitted the individual thumb throttle and use an old iPhone on the handlebars to set level, see speed etc. Easy use.
Jose Vicente –
So far everything is great. Bike now weighs around 23kg which is a bit heavy but with PAS level 2 you can’t notice the additional weight and the hills are much easier.
Daniel –
I’m enjoying the ride it gives although haven’t yet had time to test the mileage I’m able to achieve. I’ve now tested it all out over a couple of miles and am happy with the extra assistance it gives me.
Eneko –
Fantastic. I use my MTB for cycling down the canal towpath when lure fishing and this is a welcome aid for me as an old man.
Inigo –
I commute to work on my bike 5 days a week 8 miles each way. used to be really hard going on the way home after a shift, especially if the winds against me. Since installing this kit things are so much easier, the wind and the hills don’t bother me at all anymore. Very easy to install and I also save around 25 minutes travelling time each day due to my average speed being higher.
Anonymous –
I had been looking at purchasing an e-bike conversion kits for a while as I love my current bike. It’s light weight and fits me well and most ebikes are heavy and clunky. I have a SUV and usually take the mountain bike with me.
FOYSAL Sheikh –
Easy to set up, the tools are helpful. I have been using my bike regularly with no problems so far. I use the thumb throttle as I’m not in good health with very little peddling. You do have to pedal on steep hills but I still hold down the throttle as this gives maximum help to get up hills. I would recommend this kit to anyone.
v.langrock (verified owner) –
Geeko-Heck: Prime-25100R Flaschenfarbe: Rot Radgröße: 28″ Kassette: 9S
1 Monat Lieferzeit , einwandfrei verpackt , zentriert und einbaufertig TOP
Ich bin begeistert über Optik und Fahrleistung, Mein Bike hat eine Shimano XT
Ausstattung mit Magura HS 11 Bremsen. Das Fahren macht einen riesen Spaß.
Die Chattfunktion hilft prompt bei irgendwelchen Fragen. Für den Umbau sollten Kenntnisse rund ums Fahrrad mit entsprechendem Werkzeug wie Drehmomentschlüssel vorhanden sein. Langlebigkeit wird sich zeigen !!!!
Klare Empfehlung von mir.
Rony Wang –
Not bad it easy to install, and light good for convert you bike to become eBike, which so far I am happy with, also very good custom services and tech support.
David Collin –
Amazing product at a good price. There e bike products are very good. Would buy again.
Lynx Brown –
Easy fit easy use, it works better than expected. Would definitely recommend this.
Uwe Wetzeld –
The APP is simple and nice. Especially when riding at night, it is not harsh at all and the indication is very clear. I like it.
Sydney Brunner –
Someone recommended Geeko on youtube, it looks very simple and special, so I bought a set too. It did what I wanted. Very good.
Lynx Brown –
Excellent service before and after I bought this kit. I had a small issue when I was setting it up but adding a washer to the wheel helped!
Jose Molina –
The order arrived perfect and ahead of schedule, all very professional, thank you.
Angel –
Very good, very professional.
Douglas Keesee –
It is very convenient and easy to install.
Dmitri Borysevicz –
Very good service, helps me to find the right part, all my questions were answered patiently, we get exactly what we need. very thankful, good job!
Thomas Werk –
The kit arrived on time and was very well packed. It was easy to fit, I am using the syetem for family weekend ride, very good riding experience.
I would recommend this system to anyone thinking of converting their bike.
Joshua Roman –
Really Easy to install. Quality product. Install videos really useful. Works really well and is not as bulky as many of the alternatives out there.
Ken Leo –
I am a 65 years old recreational cyclist. Every day I ride about 30 kms for exercise. The kit helps to protect my knees. I have not attached the throttle and so when I stop pedaling, the motor stops. This means I still get enough exercise to keep the pounds down and have my weekend beers.
Mark Valdez –
I’ve been very impressed with your service so far. The kit is of good quality, with everything supplied to complete the conversion. I enjoyed the instructional video. It only took me 40 minutes to complete the conversion, very easy.
Alvy Bobbitt –
Very easy to put together, very helpful and friendly people to deal with.
Jason Gwin –
A really nice bit of kit. Easy to fit and install. Very neat pedelec sensor built into reat hub. This kit is superior to another one I purchased from another supplier. My only minor comment is that the motor is slightly noiser than my previous one but the overall quality far outweighs this. Have recommended to friends.
Hartmut Fringel –
Great people at 100G. Their products are really cool.
Djibril –
Took longer than I would have liked to get the product. The product itself was well packaged and met my expectations, but very anxious at shipping times.
Federico –
Really love the bottle battery design – so much more subtle. Not good to draw attention to an ebike, unfortunately, so it’s perfect. So overall, very happy and having the piece of mind and customer service provided by Geeko team. Thank you!
Dieter Auer –
Just fitted the ebike conversion kit without any problems and completed at 20 mile test ride. All was good and it is beyond my satisfaction.
Tobi V. –
Ich habe es für meine Frau gekauft, da sie immer Probleme hat, mit mir Schritt zu halten. Es war leicht an das Fahrrad meiner Frau anzubringen und einfach zu bedienen. Die Batterie hat auf zwei 30-Meilen-Fahrradtouren gut gehalten, und jetzt habe ich eine.