KELLYS Theos AX70 KELLYS Theos AX70 KELLYS Theos AX70 KELLYS Theos AX70 KELLYS Theos AX70

KELLYS Theos AX70

A powerful and well-equipped e-MTB that combines a new generation Avinox M2 motor, a large 800Wh battery, SRAM AXS POD R shifting and premium RockShox suspension. The FLT welded technology aluminium frame ensures great handling and long life.

Expected delivery date 1Q / 2027

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Rider's height: 165 cm

150

210

Recommended size *:
17 - 18" (M)

*The values provided are only indicative.

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Original price: 4 856 €

4 856 €

4 081 € excl. VAT
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Description

Motor

AVINOX M2

Motor power

up to 125 Nm

Battery capacity

800 Wh

Shifter

12 speeds

Wheels

29"

Shock travel

170 mm (front)

KELLYS Theos AX70

ROCK SHOX Deluxe Select R, DebonAir+ (210x55 mm)

ROCK SHOX Super Deluxe Select, DebonAir+ / RT damper (205x65 mm)

Top quality rear shock designed for trail and enduro bikes. The key is the combination of responsiveness, travel support and reliability even on long descents. It offers a smooth and responsive start to the stroke, ample mid-stroke support and control in high impact situations. Thanks to its larger volume (Super Deluxe), it handles long descents better without overheating and losing power. DebonAir air spring. Select+ damping. Adjustable rebound (Rebound).

The Shimano Deore XT M8200 is the latest generation of hydraulic disc brakes for MTB, taking performance, control and braking consistency to the next level. They offer excellent modulation and clear braking action, which you'll especially appreciate on technical terrain. Thanks to better cooling and new fluid, they maintain performance even on long descents without fading.

  • Hydraulic system
  • SERVO WAVE technology
  • New low viscosity mineral oil
  • Improved lever ergonomics

SHIMANO Deore XT M8200

KELLYS THEOS AX70: Maximum performance without compromise

The KELLYS THEOS AX70 electric bike pushes the boundaries of modern e-mountainbiking. It's designed for demanding riders looking for a combination of top performance, precise handling and maximum reliability even on the toughest terrain. Thanks to its progressive geometry, powerful engine and premium components, it is a machine that will stand up to enduro trails and long mountain rides.

At the heart of the bike is the KELLYS THEOS AX-series aluminium frame made from Al 6061-T6 using FLT welded technology. The design with the proven Horst-Link suspension system offers 160 mm of rear travel, which ensures great traction and stability even in challenging passages. Combined with a robust Rock Shox Zeb Select fork with 170 mm of travel and a Rock Shox Super Deluxe Select rear shock, the e-bike is ready to tackle even the toughest descents.

At the heart of the e-bike is the AVINOX M2 motor, which offers high torque of up to 110 Nm or 125 Nm in Boost mode. This compact but extremely powerful drive provides smooth and dynamic assistance even on steep climbs. The integrated AVINOX 800 Wh (23 Ah) battery ensures a long range, so you can go on all-day adventures without worrying about running out of power.

Modern technology is complemented by the AVINOX BC100 wireless control with Bluetooth® 5.1 connectivity and the clear AVINOX DPC100 OLED display, which shows all important riding information. Precise shifting is ensured by the SRAM Eagle AXS Transmission electronic shifting kit with 12 speeds, which guarantees fast, precise and reliable gear changes even under load.

Stopping power is provided by Shimano Deore XT M8200 hydraulic brakes in conjunction with 200mm GALFER discs, ensuring maximum control in every situation. High-quality, interlocking wheels with KLS Segador rims and Novatec hubs are complemented by Schwalbe Magic Mary tyres, which provide excellent grip on a variety of surfaces.

Comfort and handling are further enhanced by components such as the KS Rage-i telescopic seatpost, the wide KLS Alm/En 70 RiseBar handlebar and the ergonomic fi'zi:k Terra Ridon X5 saddle. The whole package is designed to give the rider maximum control of the bike in every situation - from technical climbs to fast descents.

The KELLYS THEOS AX70 is the e-bike for those who don't want to compromise. It offers extreme performance, modern technology and a durable design that lets you enjoy the ride to the fullest - no matter the terrain or the difficulty of the trail.

A modern, powerful and very well equipped e-MTB that combines a new generation Avinox M2 engine, a large 800Wh battery, SRAM AXS POD R shifting and premium RockShox suspension. The FLT welded technology aluminium frame provides great handling and durability at a more affordable price than its carbon predecessors. If you're looking for an enduro e-bike for day trips, technical trail riding and aggressive descents.

E-bike range calculator

500 Wh
300 Wh 600 Wh 900 Wh 1200 Wh
75 kg
50 kg 80 kg 110 kg 140 kg
3
Min 2 3 4 Max
Flat
Flat

Flat

Medium

Medium

Hills

Hills

The e-bike range is approximately

*Factors affecting total range include technical condition of the e-bike, battery age, ambient temperature, headwind, and riding technique

Avinox M2S motor

Avinox M2

The perfect balance of power and efficiency, with 110 Nm of torque (125 Nm with boost), a peak power output of 1100 W, and a lightweight design (2.65 kg). The second generation with helical gears and Dual Gear Engagement technology ensures quiet operation without knocking during descents. New bearings minimize resistance for a natural riding feel, while improved cooling ensures stability even in the heat. Integrated sensors enable adaptive power control based on cadence and riding conditions, making it the ideal, smooth workhorse for modern trail riding.

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Avinox battery RS800

Avinox RS800 Battery

The Avinox RS800 battery, with a high capacity of 800 Wh, combines maximum power with the practicality of a removable system. Weighing 4.0 kg and featuring IP56 protection, it can be easily removed from the frame thanks to a locking mechanism and charged anywhere away from the bike. When paired with the M2S motor, it delivers an impressive continuous power output of 1300 W and can reach a peak of 1500 W in Boost mode. Intelligent health management ensures 80% capacity retention after 500 cycles, and GaN technology enables ultra-fast charging.

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Avinox display

Avinox DPC100 Display

A smart 2" OLED touchscreen integrated into the frame with a high resolution of 326 ppi and 800 nits of brightness, which automatically adjusts to the surroundings. It is equipped with GPS sensors, a gyroscope, a barometer, and support for Bluetooth 5.1 and ANT+. The DPC100 model stands out with support for Apple Find My for easy bike tracking and allows you to adjust virtually all system functions directly on the screen without needing an app. It records your route, performance, and cadence in detail. Controls are complemented by wireless handlebar controls (right controller available only on select models) and a built-in 10W USB-C port for charging accessories while riding.

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extended warranty

Extended 5-year warranty on Kellys frames

Kellys provides a standard 24-month warranty and an optional extended warranty on the frame for a total of 5 years for the first owner. This benefit applies only to individuals using the bike for recreation and is non-transferable. The extended warranty applies only to the frame construction, not to the paint, carbon frames, or moving parts of full-suspension bikes.

To activate the extended warranty, online registration is required within 60 days of purchase. Another condition is to have the first warranty inspection after 100 km and then regular annual servicing at a professional service center.

More information

Manufacturer KELLYS

Designing and manufacturing e-bikes is not just about putting mechanical components together. It's more than that. The purpose for which an e-bike is created is important, because it has a unique purpose in each person's life. This mission gives every KELLYS e-bike its reason for being. Thanks to modern technology, skilled designers and the best materials, the Kellys brand has some of the highest quality e-bikes.

We are specialists in KELLYS electric bikes. We offer full suspension and fixed mountain bikes, touring bikes, men's and women's electric bikes with an excellent price / performance ratio.

Contact: KELLYS BICYCLES CZECH REPUBLIC s.r.o., Havlickova 426, 753 01, Hranice, Czech republic, e-mail: infocz@kellysbike.com, phone: +420 581 698 810, web: https://kellysbike.com

E-bikes Kellys

Parameters

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General

Model year 2027
Load capacity 120 kg
Brand Kellys
Colour White, Grey
Frame size Frame XL, Frame L, Frame S, Frame M
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Motor

Centre engine Yes
Engine manufacturer Avinox
Engine type Avinox M2
Torque 110 Nm (Boost 125 Nm)
Display Avinox DPC100 with left and right controller, Avinox DPC100 with left hand remote control
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Battery

Battery capacity 800 - 899 Wh
Precise capacity 800 Wh
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Transmission

Sort by SRAM Eagle AXS T-Type Ultimate Pod Controller
Shifter SRAM Eagle AXS, T-Type
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Components

Saddlebag KS Rage-i
Saddle Fizik Terra Ridon X5 - 145 mm
Coats Schwalbe Magic Mary, 29x2,5
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Brakes

Front brakes Shimano BL-M8200 / BR-M8220
Rear brakes Shimano BL-M8200 / BR-M8220
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Suspension

Front fork ROCK SHOX Zeb Select
Fork travel 170 mm
Shocks RockShox Super Deluxe Select
Rear travel 160 mm
Shock dimensions 205 × 65 mm

Questions

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