2027 Honda RN0

Honda enters the electric mountain bike (e-MTB) market with the RN0, developed in collaboration with premium e-MTB manufacturer ROTWILD. Weighing 23.5kg, the RN0 is designed to deliver premium all-mountain performance, combining stability, efficiency and control across a wide range of terrain.

At its core is a unique motorcycle-inspired carbon monocoque frame paired with Honda’s distinctive Gullwing swingarm and linkage system, engineered to maximise pedalling efficiency while maintaining composure over rough ground. Suspension duties are handled by FOX Float Factory Kashima fork and shock, while Shimano XT brakes and DT-Swiss H1900 wheels –29-inch front and 27.5-inch rear – wrapped in Schwalbe tyres, complete a high-spec chassis package. Power comes from Shimano’s new EP810 drive unit, producing 100Nm of torque and up to 750W of peak power, fed by a removable 720Wh battery. Combined with a 12-speed Shimano Deore XT Di2 drivetrain, the system enables Shimano’s AUTO SHIFT and AUTO ASSIST technologies, optimising gear selection and traction on both climbs and descents. Everyday practicality is enhanced by a 2.2-inch display integrated into the top tube, providing key ride information at a glance, while a USB-C charging port keeps devices powered on the move. The Shimano CONNECT mobile app also functions as a cycle computer and allows riders to lock and unlock the bike’s electronic systems for added security.

1. Introduction

Honda began its journey to becoming the world’s largest motorcycle manufacturer in 1946, with the ‘Batabata’; a humble yet refined motor to add to bicycles, designed to mobilise as many people as simply, and quickly, as possible. There have been other forays into using innovative methods to power bicycles since. In 1995, for example, the electric-assist Raccoon was unveiled, followed by the 1996 Raccoon CX with MTB styling, the folding 1998 Raccoon Compo and 2001 Step Compo, designed to be carried in the Step WGN. To gather technical knowledge and accelerate development through competition, Honda launched the RN01 project in the early 2000s. Developed as a dedicated downhill racing machine, the RN01 competed in domestic and international downhill events, including the UCI Mountain Bike World Cup. The project achieved multiple UCI Mountain Bike Downhill World Cup race victories and reached its peak in 2005, when Team G Cross Honda secured the UCI Downhill World Cup Overall Title, demonstrating Honda’s engineering capabilities at the highest level of the sport.

A lot has changed since Honda’s first foray into E-bikes and today Europe is the largest market globally in terms of volume and size for sales, and it’s steadily growing. For 27YM Honda will be joining this market, with the brand-new RN0. A collaboration between Honda, elite high-end builder ROTWILD and legendary Japanese component manufacturer Shimano, the stunning RN0 is distinct with its motorcycle-inspired carbon monocoque frame design standing out from the crowd. It’s also armed with top-level torque/ weight ratio for its class – with geometry engineered for both smooth suspension reaction and responsive pedalling.

Three frame sizes (S, M, L) cover almost all rider dimensions. And benefiting from the performance advantages of its unique motorcycle-inspired carbon monocoque frame, the RN0 is both confidence-inspiring over tough ground and easy to ride.

“New Terrain, Same Dream.”

This philosophy sits at the core of the all-new RN0. “New Terrain” refers not only to the mountains and trails where mountain bikes are ridden, but also to Honda’s venture into a new mobility category. “Same Dream” expresses the belief that, while the product and the terrain may be new, Honda’s enduring ambition remains unchanged: To expand human potential and deliver the joy of control, exploration and challenge.

The RN0’s development was guided by Large Project Leader Yusuke Muto, a lifelong cycling enthusiast whose involvement in mountain biking stretches back to 1995. With a background that includes competitive cross-country, downhill and BMX racing, alongside decades of continued riding experience, Muto san brought an authentic rider’s perspective to the project. This combination of engineering expertise and genuine passion for mountain biking influenced every stage of the RN0’s development, helping create an e-MTB that delivers intuitive performance, confidence-inspiring handling and a rewarding riding experience on the trail.

Drawing on long-standing engineering expertise and spirit of innovation, Honda and Muto san aim to bring new value and distinctive riding experiences to the world of mountain biking.

Designed as a premium e-MTB, the RN0 weighs just over 23kg and is equipped with high-end components from Shimano, FOX and ROTWILD. At its heart is Shimano’s heavily updated next-generation drive unit and battery system, delivering class-leading performance across a wide range of terrain. Ready for adventure straight out of the box, the RN0 combines cutting-edge technology with all-terrain capability to encourage riders to explore further and push their limits.

2. Model Overview

The Honda RN0 represents a new approach to electric mountain biking, bringing together Honda’s engineering heritage with the specialist expertise of ROTWILD and Shimano. Designed for riders seeking premium performance, intuitive handling and all-terrain capability, the RN0 combines a lightweight carbon fibre chassis with Shimano’s latest drive system and a carefully selected specification of premium components.

Honda’s next electric model following the Honda WN7 full-sized electric motorcycle, the new model has been named RN0. The name pays tribute to the Honda RN01, reflecting the spirit of innovation and challenge embodied by that pioneering mountain bike.

At the heart of the RN0 is a distinctive motorcycle-inspired monocoque carbon fibre frame paired with Honda’s innovative Gullwing swingarm. Designed to create a direct connection between the head tube and rear axle, the structure provides exceptional feedback from the terrain, allowing riders to intuitively sense changing surface conditions while maximising power transfer and delivering the strength, stability and responsiveness required for demanding off-road riding.

Providing powerful assistance across a wide range of terrain is Shimano’s new EP810 drive unit. Weighing just 2.3kg, it delivers 100Nm of torque and up to 750W of peak power, supplied by a removable 720Wh battery. A 2.2-inch colour display, seamlessly integrated into the top tube, provides key riding information at a glance, while Shimano’s Deore XT Di2 12-speed drivetrain offers precise wireless shifting via Deore XT controls.

Shimano’s AUTO SHIFT and AUTO ASSIST technologies work together to deliver smooth power delivery and natural pedalling characteristics whether climbing steep gradients or descending technical trails. Suspension is provided by FOX Float 36 Factory Kashima forks and a FOX Float X Factory Kashima rear shock, while a mixed-wheel setup combines a 29-inch front wheel with a 27.5-inch rear wheel fitted with Schwalbe Albert Evo tyres. Shimano XT brakes and a Crankbrothers dropper post complete the premium specification.

The 27YM RN0 will be available exclusively in;

• *NEW* Pearl Moon Ash Gray

3. Key Features
    3.1 Frame and styling

• Carbon fibre monocoque frame and Gullwing swingarm developed to balance pedalling efficiency with terrain-smoothing suspension performance
• Distinctive Honda design language
• Three frame sizes cover almost all rider sizes

The Honda RN0 has been developed through a close collaboration between Honda and ROTWILD, combining specialist e-MTB expertise with Honda’s design philosophy, shaped through decades of creating innovative two-wheeled products. While rooted in high-performance mountain bike design, the RN0 focuses on delivering the efficiency, control and rider confidence, made possible by its unique design, across a wide range of terrain.

Prominent Honda branding helps establish a clear visual connection with Honda’s growing European electric two-wheel portfolio, comprising the EM1 e: moped, CUV e: scooter and Honda WN7 full-sized electric motorcycle. The RN0’s distinctive motorcycle-inspired monocoque carbon fibre frame and signature Gullwing swingarm create a strong and instantly recognisable identity while serving a clear engineering purpose.

Developed from a ROTWILD foundation and benchmarked against leading premium e-MTBs, the frame and suspension layout were refined to deliver the balanced riding characteristics demanded by all-mountain riders. The design team focused on achieving efficient power transfer and precise handling, while maintaining the suspension compliance required to absorb rough terrain and maximise rider comfort and control.

The resulting structure creates a direct load path between the head tube and rear axle, enhancing terrain feedback and helping riders intuitively sense changes in surface conditions, while delivering the strength, stability and responsiveness required for demanding off-road riding. The Gullwing swingarm and suspension arrangement work in harmony to balance pedalling efficiency with bump absorption – two characteristics that often compete in mountain bike chassis design.

Compared with a conventional frame, the motorcycle-inspired carbon monocoque frame delivers enhanced compliance and exceptional terrain feedback through its distinctive structure. Reduced lateral stiffness allows greater frame compliance, improving cornering performance and helping the bike maintain composure across varying terrain conditions. At the same time, increased vertical stiffness contributes to improved strength, stability and braking performance. The result is a chassis that delivers confident handling across a wide variety of trail conditions, from flowing single-track to technical descents.

The RN0’s geometry has been optimised specifically for all-mountain riding and tailored across three frame sizes – Small, Medium and Large – to provide a consistent riding experience for a broad range of riders.

Each frame size has been individually engineered with size-specific dimensions, ensuring that the RN0 delivers its intended all-mountain handling characteristics regardless of rider size.

3.2 Wheels, Suspension & Brakes

• Air sprung and adjustable FOX 36 FLOAT Factory Kashima front fork and FOX Float X Factory Kashima rear shock
• ROTWILD handlebars and stem, Acros headset with adjustment option
• DT Swiss H1900 29-inch front and 27.5-inch rear wheels wrapped in Schwalbe Albert Evo Trail TLR Soft tyres
• Crankbrothers Highline 3 dropper seat post

Every component fitted to the RN0 was chosen to complement the bike’s fundamental character: intuitive, confidence-inspiring and capable across a wide range of terrain. Working in harmony with the carbon fibre frame and Gullwing swingarm, a carefully selected package of premium components from leading industry suppliers enhances control, comfort and performance on every ride.

Suspension duties are handled by FOX Factory-series components front and rear. Up front, FOX 36 Float Factory Kashima forks provide 160mm of travel and utilise an air-sprung design that can be easily adjusted to suit rider preference and trail conditions. Specifically developed and tuned for the RN0, the fork’s settings have been optimised to complement the unique characteristics of the frame and suspension layout. Extensive tuning options include independent high- and low-speed compression adjustment, together with high- and low-speed rebound damping control. The Kashima-coated 36mm stanchions help deliver smooth, consistent suspension performance over repeated impacts and rough terrain.

At the rear, a FOX Float X Factory Kashima shock works with the RN0’s suspension linkage to provide 145mm of rear-wheel travel. Like the front fork, the shock has been specifically tuned for the RN0 to achieve the desired balance of control, terrain feedback and rider confidence. The air-sprung unit features rebound and low-speed compression adjustment, allowing riders to fine-tune ride characteristics, while a conveniently placed open/firm lever enables quick suspension adjustment when climbing or riding smoother surfaces.

Cockpit components are supplied by ROTWILD, with BD280 handlebars paired to an S140 stem and finished with Ergon GDH Team grips. The Acros MOD56 headset provides precise steering feel, while an optional MOD66 adjustment kit allows riders head angle adjustment of ±0.6° and reach adjustment of ±5mm.

Rider comfort and control are further enhanced by a Crankbrothers Highline 3 dropper seat post, matched to an Ergon SM10 saddle. Depending on frame size, the dropper offers between 125mm and 170mm of travel, allowing riders to quickly adjust saddle height to suit changing terrain.

Braking performance is provided by Shimano’s proven Deore XT M8200 four-piston calipers operating on 203mm RT-CL700 rotors front and rear, delivering powerful and consistent stopping performance in all conditions. Completing the chassis package are DT Swiss H1900 wheels, with a 29-inch front wheel paired to a 27.5-inch rear in a mullet configuration designed to balance stability, agility, manoeuvrability and traction. Trail-ready Schwalbe Albert EVO tyres in a soft compound further enhance grip and control, measuring 29 x 2.5 inches at the front and 27.5 x 2.5 inches at the rear.

3.3 Drive Unit, Battery & Drive Train

• New Shimano EP810 Drive Unit delivers 100Nm of torque and 750W of power, despite compact dimensions and light weight of just 2.3kg
• Provides robust support across a wide range of riding scenarios thanks to high assist output present up to 160rpm
• AUTO ASSIST plus AUTO SHIFT equals ideal combination of gear position and assist level
• Assist Remain continues to smooth drive and maintain traction during uneven pedalling inputs over challenging terrain
• Assist Carry Over maintains electrical assistance for a short period after pedalling has stopped
• Next-generation 720Wh 43.2V Shimano Swing-In battery pack
• Shimano 12-speed XT Di2 rear derailleur
• 2.2-inch Shimano colour display and Wireless Multi-Purpose Switch
• Shimano mobile APP acts as Smart Key to lock/unlock digitally

At the heart of the RN0 is Shimano’s newly developed EP810 drive unit, created specifically to meet the performance demands of next-generation electric mountain bikes. Compared to the current EP801, the EP810 is more compact, lighter and significantly more powerful. Housed behind a magnesium alloy cover with integrated cooling fins, and weighing just 2.3kg, it produces 100Nm of torque and up to 750W of peak power, providing strong and consistent assistance across a broader range of riding conditions.

Designed to deliver natural and predictable support, the EP810 maintains assistance across a wider pedalling cadence range than its predecessor, continuing to provide output power up to 160rpm rather than 120rpm. The result is more consistent performance whether riders are spinning quickly on technical climbs or pushing hard through fast-flowing trail sections.

Further enhancing control is Shimano’s extended Assist Carry Over function. Even after the rider stops pedalling, the system continues to provide a measured level of support, helping maintain momentum and traction over obstacles such as rocks, roots and ledges. This allows riders to negotiate technical terrain more smoothly and with greater confidence.

Three riding modes – ECO, TRAIL+ and BOOST – allow riders to tailor assistance levels to conditions and personal preference. Within TRAIL+ mode, Shimano’s AUTO ASSIST technology continuously analyses rider input and terrain gradient to adjust power delivery in real time. As slopes become steeper, support increases progressively and predictably, helping reduce wheelspin at the rear and unwanted front-wheel lift on challenging climbs.

Working alongside AUTO ASSIST is Shimano’s latest-generation AUTO SHIFT system. Using an updated control algorithm and motion sensor, the system automatically selects gears to maintain an efficient pedalling cadence between 70 and 160rpm while ensuring maximum power remains available when required.

Together, AUTO ASSIST and AUTO SHIFT reduce rider workload and allow greater focus on the trail ahead. Whether accelerating into a steep climb, navigating technical switchbacks or transitioning onto flatter terrain, the system works seamlessly to maintain momentum, traction and control. Shifts are timed to preserve riding rhythm, while assistance remains smooth and predictable during both acceleration and during ‘assist carry over’. FREE SHIFT enables the rider to switch gears during coasting.

The RN0 also introduces several advanced technologies derived from Shimano’s racing and performance development programmes. Riders are able to shift gear while coasting, allowing more effective preparation for upcoming terrain changes. A further feature, Lift and Shift, selects a lower gear when restarting on steep gradients, helping riders regain momentum quickly and efficiently. Riders simply lift the rear wheel and hold the mode switch to trigger the functionality.

Integrated neatly into the top tube is Shimano’s SC-EN700 display. The compact 2.2-inch full-colour screen presents essential ride information clearly and intuitively, while an integrated USB-C port allows device charging on the move and provides connectivity for diagnostic functions. System controls are managed via Shimano’s wireless SW-UT600-LR multi-purpose switch, whilst additional connectivity is provided through Shimano’s CONNECT mobile app. Once downloaded and paired, it can function as a cycle computer and enables users to lock and unlock the bike’s electronic systems via smartphone. The app can also be used to tune motor feel and characteristics to suit riders and terrain.

Power is supplied by Shimano’s latest generation battery platform. The standard configuration uses a lightweight 720Wh 43.2V removable battery. Completing the drivetrain package is Shimano’s Deore XT Di2 electronic groupset. A Shimano FC-M8200-E crankset (160 (S) / 165 (M/L)) works in conjunction with a 34-tooth SM-CRE80 chainring and an e*thirteen chain guide, while the RD-M8290 Deore XT Di2 rear derailleur and CS-M6200-12 10-51T cassette provide a wide range of gearing suitable for everything from steep technical climbs to high-speed descents.

4. Accessories

• Variable headset:

The optional Variable Headset allows angle adjustment through ± 0.6°, and reach adjustment of ± 5mm (only on frame sizes M&L), allowing riders to alter the bike dimensions slightly to optimise the riding position.

• Shimano CONNECT App:

The Shimano app automatically connects a rider’s phone to the EP810 Series E-Bike System for a seamless start to any ride. Riders can track their rides, customize system behavior, update components, and manage key settings through a fast, stable connection. Features such as system lock add convenience and peace of mind, while automatic software updates help keep the system ready for the next ride.

With the Shimano CONNECT App, the RN0 automatically locks when it is powered off, ensuring it is protected. To unlock, simply power on the app-enabled phone nearby.

5. Technical Specifications

5.2 Tech Table

All specifications are provisional and subject to change without notice.

# Please note that the figures provided are results obtained by Honda under standardised testing conditions prescribed by WMTC. Tests are conducted on a rolling road using a standard version of the vehicle with only one rider and no additional optional equipment. Actual fuel consumption may vary depending on how you ride, how you maintain your vehicle, weather, road conditions ,tyre pressure, installation of accessories, cargo, rider and passenger weight, and other factors. 

Originally posted on our dedicated sister site eMotorcycle News website: https://emotorcyclist.co.uk/

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About Honda Motorcycles
Honda is the world’s largest motorcycle manufacturer, founded in 1948 by Soichiro Honda. The company is known for producing reliable, high-quality motorcycles and is the world’s largest manufacturer of internal combustion engines. Honda’s early focus on reliable four-stroke engines and innovative designs, like the highly successful Super Cub, helped it become a global leader in the industry.

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