The French brand SUNN offers road, gravel, all-terrain, and city bikes. It designs and assembles its bikes in Machecoul, near Nantes. The 2026 collection includes both new models and carry-over bikes from the previous season, with no major changes. In this article, the experts at Routes and Roads present the SUNN models available in stores, compare their equipment, and explain which types of routes each range is suited for.
Table of Contents:
SUNN GP Road Bikes
SUNN Venture Air Carbon Gravel Bikes
SUNN Venture Aluminum Gravel Bikes
SUNN eVenture Electric Gravel Bike
SUNN One E-MTB
SUNN Charger E-MTB
SUNN Rage S2 E-MTB
SUNN Rage Allroad E-Bike
SUNN Start Allroad and ON City E-Bikes
Which SUNN Bike to Choose
SUNN GP Road Bikes
The SUNN GP bikes are aerodynamic road bikes designed for racing, intensive training, and long road rides. The range includes three models: the GP Finest, GP S1, and GP S2.
All three models feature the same high-modulus carbon frame and fork. The tube profiles have been optimized to reduce drag, and the sporty geometry is UCI-approved. Internal cable routing and an integrated seatpost clamp maintain the frame's clean lines. The bikes are equipped with 30 mm-wide Michelin Power Cup TLR tires, but the frame accommodates tires up to 32 mm.
The SUNN GP S2 weighs 8.2 kg. It features a 12-speed Shimano 105 mechanical drivetrain and Mavic Cosmic S42 carbon wheels. The GP S1 is 300 g lighter. It features a SRAM Rival AXS electronic drivetrain, an integrated crank-based power meter, and Mavic Cosmic SL45 wheels. The GP Finest weighs 7.5 kg and features a SRAM Force AXS electronic drivetrain with a power meter. Its 50 mm-deep DT Swiss ARC 1400 Dicut wheels and one-piece carbon cockpit help reduce weight even further.
SUNN GP bikes are designed for speed on the road
SUNN Venture Air Carbon Gravel Bikes
The SUNN Venture Air bikes are lightweight carbon gravel bikes designed for racing, competitive events, and long rides on a mix of asphalt and dirt roads. The range includes the Venture Air Finest, Venture Air S1 Mono, Venture Air S1 Double, and Venture Air S2.
All versions feature the same high-modulus carbon frame and fork, with internal cable routing and an integrated compartment for storing tools. The 45 mm-wide tires provide stability on dirt roads, while the frame accommodates tires up to 50 mm. The carbon seatpost and one-piece cockpit help reduce weight and filter out minor vibrations.
The Venture Air S2 weighs 9.25 kg. It features a 12-speed SRAM Apex AXS electronic drivetrain and aluminum wheels.
The S1 Mono weighs 8.7 kg. It combines Brute carbon wheels with a 13-speed SRAM Rival XPLR AXS electronic single-chainring drivetrain.
The S1 Double weighs 8.6 kg and features a Shimano GRX Di2 electronic double-chainring drivetrain. The reduced gear steps are practical on the road and during long climbs. The Finest is the flagship model of the range. Weighing 8.1 kg, it features a 13-speed SRAM Force XPLR AXS drivetrain and DT Swiss GRC 1400 carbon wheels.
The SUNN Venture Air carbon bikes are among the lightest models in this selection
SUNN Venture Aluminum Gravel Bikes
The SUNN Venture bikes are aluminum gravel bikes designed for touring, bikepacking, daily commutes, and carrying luggage. The range includes the Venture Finest, Venture S1 Mono, Venture S1 Double, and Venture S2.
All models feature an aluminum frame, a carbon fork, internal cable routing, and 45 mm-wide Hutchinson Touareg tires. The flared handlebar improves control on rough terrain. The Finest and S1 versions feature a carbon seatpost, while the more affordable S2 comes with an aluminum seatpost. Compared to the Venture Air models, the aluminum models are heavier but also more practical for daily use and carrying luggage.
The Venture S2 features a 10-speed Shimano Cues single-chainring drivetrain. It is the simplest version for city riding and easy trails.
The S1 Mono weighs 9.7 kg. It features a 12-speed Shimano GRX single-chainring drivetrain and a 10-51T cassette. This wide gear range is useful for steep climbs on dirt roads.
The S1 Double features a double-chainring drivetrain and offers more intermediate gears, making it suitable for roads and hilly terrain.
Finally, the Venture Finest weighs 9.8 kg and combines a Shimano GRX double-chainring drivetrain with DT Swiss GR 1600 wheels.
The SUNN Venture bikes are aluminum gravel bikes for touring
SUNN eVenture Electric Gravel Bike
The SUNN eVenture is an electric gravel bike designed for long distances, long climbs, and bikepacking trips. The motor assistance makes it easier to manage effort on this type of route.
It features an aluminum frame, a carbon fork, and a compact Bosch Performance Line SX motor, which maintains a natural pedaling feel. The 12-speed Shimano GRX single-chainring drivetrain and 10-51T cassette offer a wide gear range to adapt to different gradients.
The 50 mm-wide Schwalbe G-One R tires provide stability on gravel and forest tracks. The tubeless-compatible DT Swiss GR531 rims allow you to ride at lower pressures for increased grip and comfort. The bike weighs 16.2 kg without the additional PowerMore battery.
The SUNN eVenture is an electric gravel bike designed for touring
SUNN One E-MTB
The SUNN One bikes are full-suspension carbon e-MTBs designed for demanding enduro, steep descents, and technical mountain trails. The range includes the One Factory, One Finest, and One S2.
The One Factory is carried over in the 2026 collection as the flagship model from the previous generation, while the One Finest and One S2 receive new equipment.
Regardless of the version, the bikes feature a carbon frame, a Bosch Performance Line CX motor, a fork with 170 mm of travel, and a rear shock with 160 mm of travel. The 29-inch front wheel makes it easier to clear obstacles, while the 27.5-inch rear wheel makes the bike more maneuverable when changing direction. The four-piston brakes and telescopic seatpost are suited for technical descents.
The One S2 features a 600 Wh battery, RockShox suspension, a Shimano Deore mechanical drivetrain, and Mach1 wheels.
The One Finest features an 800 Wh battery, Fox Factory fork and shock, a SRAM GX AXS electronic drivetrain, and DT Swiss H1900 wheels.
The SUNN One is a full-suspension carbon e-MTB
The One Factory weighs 24.2 kg. It stands out with its SRAM X0 AXS electronic drivetrain, DT Swiss HX1700 wheels, TRP DH Evo brakes, and Fox Transfer Factory telescopic seatpost.
The SUNN One S2 allows you to enjoy a carbon frame, long-travel suspension, and a powerful motor without having to invest in top-end components. The SUNN One Finest adds more capable suspension and a battery with greater range for long rides without recharging. Finally, choose the SUNN One Factory for intensive enduro riding if you are looking for lighter wheels, more adjustment options, and brakes designed to withstand heavy demands.
SUNN Charger E-MTB
The SUNN Charger range includes aluminum full-suspension e-MTBs designed for long rides on mountain trails and rough terrain, without being specifically oriented toward enduro. It consists of the Charger Finest, Charger S1, Charger S1 800Wh, and Charger S2.
Compared to the One models, the Charger models feature an aluminum frame, 29-inch wheels, and slightly shorter travel. All models share a Bosch Performance Line CX motor delivering up to 100 Nm of torque, a fork with 150 mm of travel, and a rear shock with 140 mm of travel. The telescopic seatpost makes it easier to move around the bike during descents.
The Charger S2 features a 600 Wh battery, RockShox Psylo Silver fork, 10-speed Shimano Cues drivetrain, and Shimano brakes. With the same battery capacity, the Charger S1 receives a Psylo Gold fork, 12-speed Shimano Deore drivetrain, and Formula Cura brakes. The Charger S1 800Wh retains the S1 equipment, but its 800 Wh battery allows you to ride longer without recharging. As for the Charger Finest, it combines this same 800 Wh battery with Fox suspension, 12-speed SRAM Eagle 70 drivetrain, and four-piston Formula Cura brakes.
The SUNN Charger range is designed for rough terrain
SUNN Rage S2 E-MTB
The SUNN Rage S2 is a semi-rigid electric mountain bike designed for relaxed rides on forest roads and easy trails, where a rear suspension is not essential. This model is carried over in the 2026 collection with no major changes in design or equipment.
Unlike the full-suspension One and Charger models, the Rage S2 does not have a rear shock. This design is simpler, requires less maintenance, and transfers pedaling power more directly.
Its aluminum frame is paired with 29-inch wheels and an SR Suntour XCM 34 fork with 130 mm of travel. The Bosch Performance Line motor delivers 75 Nm of torque, and the battery has a capacity of 500 Wh. The 9-speed Shimano Cues drivetrain is suited for regular use, while the Shimano MT200 hydraulic brakes ensure speed control. The 2.4-inch-wide Maxxis Rekon tires offer good grip on loose ground.
The SUNN Rage S2 is an e-MTB for forest roads
SUNN Rage Allroad E-Bike
The SUNN Rage Allroad bikes are electric bikes designed for daily commutes, countryside rides, and forest roads. They combine practical city equipment with wide tires and a long-travel fork. The range includes the Rage Allroad S1, S1 Low, S2, and S2 Low. All four versions are carried over in the 2026 collection with no major changes.
All models feature an aluminum frame, a Bosch Performance Line motor delivering 75 Nm of torque, a SR Suntour fork with 130 mm of travel, and Schwalbe Smart Sam tires. The equipment includes mudguards, lights, a kickstand, and a rear rack that can carry up to 27 kg. The classic versions offer a sportier position, while the Low frame, with its significantly lowered top tube, makes it easier to get on and off the bike as well as stop.
The main differences concern the drivetrain and battery. The S2 and S2 Low feature 9 speeds and a 500 Wh battery. The S1 and S1 Low are equipped with a 10-speed Shimano Cues drivetrain, offering a wider gear range, and a 625 Wh battery. The Low versions are fitted with 27.5-inch wheels. The classic S1 and S2, intended for taller riders, are offered in sizes M and L.
The SUNN Rage Allroad models are carried over in the brand's collection
SUNN Start Allroad and ON City E-Bikes
The SUNN Start Allroad and SUNN ON are electric city bikes that also allow you to venture onto easy trails. The Start Allroad allows you to go from city streets to park paths and dirt trails, while the ON is primarily intended for road trips, in Paris as well as in neighboring towns.
The Start Allroad features a step-through frame, a Bosch Performance Line motor delivering 75 Nm of torque, a 545 Wh battery, and a fork with 80 mm of travel. Its 2.35-inch-wide Schwalbe Smart Sam tires offer better grip on gravel and dirt roads. It is also equipped with mudguards, lights, a kickstand, and a rack.
The SUNN ON features an M60 mid-drive motor delivering 70 Nm of torque, a 461 Wh battery, and an 8-speed Shimano Altus drivetrain. Its 28-inch wheels, equipped with 40 mm-wide Michelin Protek Max tires, offer good efficiency on the road, while their reinforced protection reduces the risk of punctures. The equipment also includes front lights, an AXA frame lock, and a MIK rack.
The SUNN ON is the most urban model in the selection
Which SUNN Bike to Choose
Choose your model based on the type of terrain, the elevation gain, and the distance of your routes. For road training and gran fondos, the SUNN GP S2 is a good choice. The S1 version adds electronic shifting and a power meter, while the lighter Finest, equipped with higher-end wheels, is better suited for racing.
Among the carbon gravel bikes, the Venture Air S2 offers the most affordable equipment. The S1 Mono, with its single-chainring, is practical on dirt roads, while the S1 Double, with its double-chainring, is better suited for mixed routes and hilly terrain. The Venture Air Finest is intended for gravel racing. For touring and carrying luggage, the aluminum Venture models are more practical. As for the electric eVenture, it allows you to better manage your effort on the climbs of the Chevreuse Valley and during multi-day hikes.
For technical descents and electric enduro riding, choose the SUNN One, a full-suspension carbon mountain bike. The aluminum Charger is more versatile: the S2 is suitable for moderately difficult mountain routes, the S1 offers a higher-performance fork and a 12-speed transmission, while the versions with an 800 Wh battery are suited for long rides with significant elevation gain. The Rage S2 is suitable for forest roads and moderately difficult trails in the Île-de-France region. On rocky descents, however, the full-suspension Charger will offer more control and comfort.
For the city and countryside outings, choose the Rage Allroad. The S2 versions are suitable for relatively short routes, while the S1 models feature a larger battery capacity and a transmission offering a wider gear range. The Low frame makes getting on and off the bike easier. The Start Allroad is suitable for daily commutes with gravel sections and dirt roads, while the ON is primarily intended for daily urban travel.
At Routes and Roads, you can compare SUNN bikes, choose the right frame size, and check your position on the bike. The store's experts will help you find the right model for your urban commutes, routes in the Île-de-France region, gravel trips, or mountain outings. The workshop mechanics will also prepare your new bike for your first rides.
