Kellys introduces a major technological leap in e-bikes for the 2026 season. At the heart of the collection is the new in-house MAXXPRO system, promising top parameters — especially in terms of performance, weight, and user comfort.
What is MAXXPRO
MAXXPRO is a new full-featured drive system (motor + battery + control) designed to deliver the full power of an electric motor without being a burden:
- • Carbon batteries in three sizes: 900 Wh, 820 Wh, 725 Wh. Energy density up to 257 Wh/kg — which means they are up to 20% lighter than competing models with higher or comparable capacity.
- • Each battery weighs around 3.5 kg, even the largest 900 Wh version.
- • GXM MAXXPRO motor, developed in collaboration between Kellys & Panasonic: torque of 105 Nm, weight only 2.56 kg, built with magnesium.
- • Together (battery + motor) the system weighs only ~6.1 kg, which Kellys calls the lightest full-featured e-bike system on the market.
- • Additional features include a color display, mobile app connectivity, and “over-the-air” (wireless) updates. This ensures the system stays “smart” and ready for the future.
New RS-Series e-bike models
Together with the launch of MAXXPRO, Kellys presents a new generation of e-bikes within the RS-Series. These models feature a new frame platform, manufactured in Europe, with robotic production for higher precision. Key highlights include:
- • Frames are about 10% lighter than the previous generation. They are also stiffer.
- • New feature: easy battery removal — previously reserved mainly for top models.
Key models in the RS-Series:
THEOS RS
Full-suspension mountain e-bike (trail / MTB) with around 140 mm of travel.
THEOS RSE & RSX
eSUVs with integrated lights, racks, and fenders.
Tygon RS & Tayen RS
Hardtails with lighter frames and equipment for more demanding terrain.
eCristy RS
eSUV hybrid model with low step-through and practical equipment.
Alongside mountain and SUV models, Kellys also introduces a complete novelty: eSoot, the brand’s first e-gravel bike. It is equipped with the minimalist MAHLE drive system, which makes it look like a classic gravel bike at first glance. At the same time, it provides extra support for longer rides, steeper climbs, and more adventures off-road. Thanks to its subtle system, eSoot is ideal for cyclists who want to maintain the lightness and natural look of a gravel bike while enjoying the benefits of electric assistance on tougher challenges.
eSoot
An ambitious step into the future of e-bikes
With the 2026 season, Kellys brings a solution that combines cutting-edge MAXXPRO technology in mountain and SUV e-bikes with the minimalist MAHLE system in the eSoot. The result is an expanded range of e-bikes aimed at everyone — from trail riders to gravel adventurers.
Check out our complete selection of Kellys e-bikes and find the perfect model for your adventures!