KELLYS Theos RS10

KELLYS Theos RS10: A powerful trail e-full at a reasonable price

The Theos RS10 from KELLYS is a full-suspension mountain e-bike that offers a great balance of performance, features and range. Its design is engineered for versatile trail use - it handles technical descents and trips on higher terrain without sacrificing comfort or durability.

Construction and frame

The frame of the e-bike is made from 6061-T6 aluminum alloy, robotically welded in Europe, ensuring strength and precision craftsmanship. The bike uses the Think Link® system for rear suspension, which ensures responsive handling even on more demanding rides. The rear axle is a Boost type (12×148 mm), which increases the stiffness of the rear structure.

The Theos RS10 comes with a combination of 29″ front and 27.5″ rear ("mullet") wheels - this configuration gives stability in fast sections and greater control in corners.

Engine and battery

The e-bike is powered by a Panasonic GXM mid-motor, which offers around 100Nm of torque, providing ample assistance even for steep descents.

The battery has a capacity of 725 Wh and allows a range of approximately 120 - 150 km, depending on the power mode selected, terrain and riding style.

Suspension and components

• RockShox Recon air fork - comfortable even for the most demanding trail conditions
• Rear shock: RockShox Deluxe, which handles a variety of terrain bumps well
• Brakes: Shimano MT200 hydraulic disc brakes - reliable and well proportioned
• Gears: 1×9 gears with a chainring designed for e-bikes, 9-speed shifting, ideal for climbs and fast straights.

Advantages

High engine torque gives good performance even on steep terrain.
Full suspension + 29″/27.5″ wheel combination offers a compromise between comfort and handling.
Large battery will provide long range for day trips.
The bike has a modern frame construction that is designed for durability and a stable ride.

The Theos RS10 is ideal for riders who:

are looking for a powerful e-bike for off-road trips, but don't want to invest in the most expensive RS models,
appreciate the long range for multi-day rides,
like to ride technical trails with descents, but at the same time use e-assist on their rides,
want solid components (engine, transmission, brakes) without compromising on quality but on a reasonable budget.

The KELLYS Theos RS10 e-bike is a very well balanced full suspension e-MTB: it delivers a strong motor, a large enough battery and quality components in a design that can handle both trail rides and longer trips. If you're looking for a powerful but relatively "affordable" e-full for a wider range of uses - the RS10 is a serious candidate.

KELLYS BICYCLES s.r.o. is now offering an extended warranty of 5 years. This extended warranty covers the frame of the e-bike and its claim when a manufacturing or material defect is proven to be the cause.

Need help choosing the right e-bike? Use our e-bike selection guide or contact us directly.

E-bike range calculator

Battery capacity: 500 Wh

300 Wh 600 Wh 900 Wh 1200 Wh

Rider weight: 75 kg

50 kg 80 kg 110 kg 140 kg

Assistance mode: 3

Min 2 3 4 Max

Route profile: Flat

Flat

Medium

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

Panasonic GXM 100 Mg Motor

The Panasonic GXM 100 Mg mid-drive motor is the flagship of the new generation of GXM e-bike drives (“Great eXperience in eMotion”). It delivers up to 100 Nm of torque, features an ultra-light magnesium casing weighing only about 2.6 kg, an open CAN-bus system allowing third-party battery use, and supports OTA (Over-The-Air) updates via a mobile app. Ideal for high-performance e-MTB bikes and demanding terrain.

More information

Battery Kellys Maxxpro 725 Wh

Kellys, in cooperation with German battery manufacturer BMZ, presents a new series of batteries called Maxxpro, which excel in high energy density. Energy density is the amount of energy stored in a given amount of material, measured in Wh/kg. Carbon batteries are up to 20% lighter and offer higher capacity. The batteries weigh approximately 3.5 kg. To achieve low weight and high energy density, Kellys used an all-carbon battery body.

More information

PANASONIC GXM Center Display 501

A highly modern central display designed for e-bikes with Panasonic drives. This display provides a clear overview of all key information – from speed, range, and assistance level to navigation and connection to a smart app via Bluetooth® 5.0. Enables stable and fast connection to smartphones and Panasonic apps, including firmware updates and ride data transfer. Intuitive navigation. The display provides information on speed, range, battery status, assistance mode, and other bike functions. The display is resistant to water, dust, and vibrations, and is readable even in direct sunlight.

GXM Remote 501

A modern control unit located on the handlebars, designed for intuitive control of e-bikes equipped with Panasonic GX series drives. The controller allows quick and safe switching between assistance levels and control of additional functions. Designed to be easily accessible with your thumb, minimizing the need to take your attention off driving. Ergonomic design. Intuitive button layout. High durability. Fast response and precise control. Seamless integration with Panasonic GX and GXM series motors and displays.

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