Geeko-Rear Thru Axle

Name: Geeko Rear Thru Axle - Turn Your Thru Axle Bike into an e-Bike - 100g.tech
SKU: Geeko-Rear-Thru-Axle
Availability: InStock

USD605.00 USD1,035.00Price range: USD605.00 through USD1,035.00

USD605.00 - USD1,035.00

EUR543.63 - EUR930.01

GBP478.19 - GBP818.06

CAD881.51 - CAD1,508.04

TWD19,335.95 - TWD33,078.85

Geeko-Rear Thru Axle

Mini-25052RT

Mini-25070RT

Mini-35070RT

Prime-25078RT

Prime-35078RT

Prime-25100RT

Prime-35100RT

Solid-25100RT

Solid-35100RT

Max-25150RT

Max-35150RT

Pro-25150RT

Pro-35150RT

Ultra-25200RT

Ultra-35200RT

Bottle Color

My Wheel Size

305-16"

349-16″

355-18"

406-20″

451-20"

457-22"

507-24"

559-26″

584-27.5″-650B

622-28″/29”-700C

Rear Thru Axle Fork Spacing

142x12MM

148x12MM

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SKU: Geeko-Rear-Thru-Axle Category: Geeko Tag: Free Shipping

Description

Geeko-Rear Thru Axle E-Kit, a specialized subseries of the Geeko-Rear system, is engineered for 142/148mm thru axle road and mountain bikes to provide full electrification with patented technology.

It features a smart drivetrain with a patented cassette sensor for real-time cadence and gear monitoring, delivering adaptive power assistance through a high-efficiency motor.

The integrated 3-in-1 battery/controller/display unit maintains bike aesthetics with a water bottle form factor. This modular system preserves mechanical drivetrain performance while offering IP67 waterproofing and data-analyzed power management for all-weather, all-terrain reliability.

Geeko Rear Thru Axle Motor

The Geeko Rear Thru Axle motor, a high-performance drive by 100G for Thru Axle bikes, comes in 142mm (road bike) and 148mm (mountain bike) dropout sizes.

High Torque

This BLDC gear motor features a 4.33-ratio reinforced gearset delivering 40Nm(350W) peak torque.

Lightweight

The motor utilizes an aluminum alloy casing with IP65 protection and tips the scales at just 2.8kg.

Shimano HG Freehub

Excellent compatibility for 11-speed and lower cassettes. For 12-speed systems: Shimano MS or SRAM XD cassettes require replacement with a Shimano HG cassette.

Double-wall aluminum rim: Precision-machined
High-strength PVC tire pads: Withstand a maximum of 100 psi tire pressure
Radial/axial deviation: < 0.5-1 mm
13G (2.2 mm) high-tensile steel spokes
36-spoke configuration: Optimized for e-bike torque loads
Spoke tension: 25-30 kgf
Wheel size compatibility: 16 – 29 inches (650b/700c/29er)

Default Specifications

Matte black rim with polished silver sidewalls (rim/disc brake compatible)
Black spokes and motor housing

Customization Options

Pure black disc brake rim
Silver rim
Silver spokes
Silver motor

Patented Cassette Sensor

The cassette sensor is integrated into the motor, eliminating the need for a bottom bracket cadence sensor(Such sensors are prone to failure).

The smart cassette sensor accurately captures real-time variations in pedal cadence and gear ratio. Combined with 100G’s proprietary, well-matched bionic power-assist algorithm, it enables real-time, precise motor control for a highly natural and seamless power delivery(The cadence sensor has no way to detect the gear ratio).

2nd-gen Sensor Upgrade

Fully integrated design simplifies installation and enhances durability
100% signal density improvement
Start angle halved (270°→135°)
Sensitivity doubled (90°→45°) for instant natural assist
Enhanced filtering eliminates signal misjudgment

Bionic torque power, an electric power distribution and control system independently developed by 100G, closely approximates traditional torque-assist systems by offering cyclists a human-like, fluid riding experience that significantly enhances comfort and efficiency.

Linear, natural assist power ideal for multi-gear bikes
Each level achieves maximum speed
Levels differ by motor boost power (vs. speed in other systems)
Independent max speed/current settings per level
Auto uphill enhancement increases power on inclines
50% longer range: 130km (10Ah) / 200km (15Ah)

Geeko Bottle

6 Bottles x 4 Colors

Intelligent Display

Featuring a bottle cap-integrated design with built-in Bluetooth 5.0, this display combines a 3-button interface and 1.25-inch digital screen for classic electric bicycle HMI, offering IPX7 waterproof protection (full battery bottle immersion resistance) and low-power operation (standby current ≤12mA).

Real-Time Monitoring

Battery level (1% precision)
Assist level
Controller connectivity (plug-and-play supported)
APP Bluetooth status (OTA updates enabled)
Flashing error code for fault Diagnosis

Operation Controls

Power On/Off
0-5 assist level adjustment
Parameter settings (Includes 18 functions like wheel diameter calibration/speed limit reset)

APP

The 100G/Geeko app features an intuitive interface for better interaction, with no setup required and simple +/- button controls that make it easy for everyone to use. Key functions include:

Monitor speed, battery level, and ride stats in real time
Adjust assist levels (0-5) and modify settings
Fault diagnosis
OTA firmware updates

Controller

The controller is enclosed in an aluminum housing with integrated heat dissipation fins at the bracket base, ensuring efficient heat dissipation. Adaptive thermal management reduces power output incrementally under high-temperature conditions to prevent overheating.

Overheat Protection: Maintains safe operating temperatures for long-term performance
IPX7 Waterproofing: Fully potted with thermally conductive epoxy for submersible protection (1m depth, 30-minute immersion)
All-Weather Operation: Ensures reliable functionality in rain, mud, or extreme humidity

Modular Expansion:

Supports plug-and-play expansion, allowing users to customize their e-bike with:

Front/rear light
Handlebar display
USB Charging
Throttle/Brake lever

Modular Expansions

The Geeko system comes with practical plug-and-play expansion accessories. Even if you’re installing them on your own, you can do it with ease.

Front/Rear Light

Handlebar Display

USB Charger

Throttle for 250W Geeko Kit

Accessories You May Need

Brake Disc

Cassette

Extension Cable

Torque Arm

Spare Geeko Battery

Spare Geeko Charger

Spare Sensor

Geeko-Rear Motor Wheel

Geeko Bracket

Geeko Cap

Geeko Key

Geeko Adapter

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.

Handlebar with A-Adapter-2

Front fork

Seat post

Saddle

Specifications & Manuals

Specifications

Specifications for every items

Geeko Kit Manual

Packing list / Installations / Error code

APP Manual

Wheel size / Speed limit, etc.

Policies

Shipping

Shipping time / Shipping cost

/ Order tracking / VAT & Customs

Warranty & Return

Warranty / 7-day return policy

/ Damages and issues, etc.

FAQ

Installation / Warehouse

/ Dealers/ MOQ, etc.

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.

Specifications

Geeko-Rear Kits

Geeko Model	Motor Power	Battery Case	Battery Capacity	Battery Cell	Charger	Mileage(km)*	Thumb Throttle
Mini-25052R/RT	36V250W	Mini	36V5.2AH	DMeg	42V2A	20-60	N/A
Mini-25070R/RT	36V250W	Mini	36V7.0AH	LG/Samsung	42V2A	28-85	N/A
Mini-35070R/RT	36V350W	Mini	36V7.0AH	LG/Samsung	42V2A	28-85	Yes
Prime-25078R/RT	36V250W	Prime	36V7.8AH	DMeg	42V3A	32-95	N/A
Prime-35078R/RT	36V350W	Prime	36V7.8AH	DMeg	42V3A	32-95	Yes
Prime-25100R/RT	36V250W	Prime	36V10.0AH	LG/Samsung	42V3A	40-130	N/A
Prime-35100R/RT	36V350W	Prime	36V10.0AH	LG/Samsung	42V3A	40-130	Yes
Solid-25100R/RT	36V250W	Solid	36V10.0AH	LG/Samsung	42V3A	40-130	N/A
Solid-35100R/RT	36V350W	Solid	36V10.0AH	LG/Samsung	42V3A	40-130	Yes
Max-25150R/RT	36V250W	Max	36V15.0AH	LG/Samsung	42V3A	60-200	N/A
Max-35150R/RT	36V350W	Max	36V15.0AH	LG/Samsung	42V3A	60-200	Yes
Max-50100R	48V500W	Max	48V10.0AH	LG/Samsung	54.6V3A	40-130	Yes
Pro-25150R/RT	36V250W	Pro	36V15.0AH	LG/Samsung	42V3A	60-200	N/A
Pro-35150R/RT	36V350W	Pro	36V15.0AH	LG/Samsung	42V3A	60-200	Yes
Pro-50100R	48V500W	Pro	48V10.0AH	LG/Samsung	54.6V3A	40-130	Yes
Ultra-25200R /RT	36V250W	Ultra	36V20.0AH	LG/Samsung	42V3A	80-260	N/A
Ultra-35200R/RT	36V350W	Ultra	36V20.0AH	LG/Samsung	42V3A	80-260	Yes
Ultra-50150R	48V500W	Ultra	48V15.0AH	LG/Samsung	54.6V3A	60-200	Yes
*Regarding the max. 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-3625RT	MT-3635R	MT-3635RT	MT-4850R
Bike Fork		Quick Release	Thru Axle	Quick Release	Thru Axle	Quick Release
Power		250W	250W	350W	350W	500W
Rated Voltage(V)		36				48
RPM		290	290	350	350	450
Contruction		Gear Drive
Gear Ratio		4.33
Torque(NM)		38	38	40	40	48
Weight		2.6				3.6
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
Dropout Size/OLD (mm)	7-10S Cassette	Default: 138	142/148	Default: 138	142/148	144
		Custom: 133		Custom: 133
	11-12S Cassette	Default: 140		Default: 140		146
		Custom: 135		Custom: 135
Waterproof		IP65
Certificates		CE
Max. Speed (KM/H)	305-16″	18-20	18-20	22-24	22-24	28-31
	355-18″	20-22	20-22	24-26	24-26	32-35
	406-20″	22-24	22-24	27-30	27-30	35-38
	559-26″	29-32	29-32	35-40	35-40	45-49
	584-27.5″	31-34	31-34	37-42	37-42	48-53
	622-28“/29er-700C	32-35	32-35	39-44	39-44	50-55
*Regarding the maximum speed of the motor, it will fluctuate within a certain range as it is directly affected by battery power and load. The above range values are for reference only. A higher battery power or a smaller load will result in a higher maximum speed; conversely, a lower battery power or a larger load will lead to a lower maximum speed.

Geeko Bottles

Geeko Batteries

Model	Bottle Case	Capacity	Height(mm)	Diameter(mm)	Weight(kg)	Cell Type	Cell Brand
GB-36052-Mini-B3	Mini	36V 5.2AH	222.5	76	1.25	18650	DMEG
GB-36070-Mini-B3	Mini	36V 7.0AH	222.5	76	1.3	18650	LG/Samsung
GB-36100-Solid-B3	Solid	36V 10.0AH	222.5	87	1.75	21700	LG/Samsung
GB-36150-Pro-B3	Pro	36V 15.0AH	222.5	104	2.55	21700	LG/Samsung
GB-48100-Pro-B3	Pro	48V 10.0AH	222.5	104	2.3	21700	LG/Samsung
GB-36078-Prime-B3	Prime	36V 7.8AH	292.5	76	1.8	18650	DMEG
GB-36100-Prime-B3	Prime	36V 10.0AH	292.5	76	1.8	21700	LG/Samsung
GB-36150-Max-B3	Max	36V 15.0AH	292.5	87	2.55	21700	LG/Samsung
GB-48100-Max-B3	Max	48V 10.0AH	292.5	87	2.3	21700	LG/Samsung
GB-36200-Ultra-B3	Ultra	36V 20.0AH	292.5	104	3.65	21700	LG/Samsung
GB-48150-Ultra-B3	Ultra	48V 15.0AH	292.5	104	3.55	21700	LG/Samsung

Thumb Throttle(For 350W and 500W kit)

Items Weight

Items	Weight(KG)
Battery	Mini	1.3
	Solid	1.75
	Prime	1.8
	Max	2.55
Motor Wheel	250W	2.6
	350W	2.6
	500W	3.5
Controller	0.5
Charger	2A	0.42
Charger	3A	0.75
Thumb Throttle	0.1
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	64X64X25	9

Warranty

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

After-Sale Service

Our goal is customer satisfaction!
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.
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.
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.

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Geeko-Rear Thru Axle

Geeko Rear Thru Axle Motor

High Torque

Lightweight

Shimano HG Freehub

Default Specifications

Customization Options

Patented Cassette Sensor

2nd-gen Sensor Upgrade

Geeko Bottle

6 Bottles x 4 Colors

Intelligent Display

Real-Time Monitoring

Operation Controls

APP

Controller

Modular Expansions

Accessories You May Need

Introduction Videos

Independent Reviews

"Geeko" Anywhere on Your Bike

Specifications & Manuals

Specifications

Geeko Kit Manual

APP Manual

Policies

Shipping

Warranty & Return

FAQ

Campaign & Rewards

Show Geeko, Get $50 Rewards

EU Warehouse & Accessories Pre-installation

Geeko-Rear Kits

Geeko Rear Motors

Geeko Bottles

Geeko Batteries

Thumb Throttle(For 350W and 500W kit)

Items Weight

Package

Warranty

After-Sale Service

Local Dealer & Service

Reviews

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