Sunn Kern S1 Specs and reviews

Sunn Kern S1 fiche technique et avis

Sunn Kern S1 specs

General Information
Model Name Sunn Kern S1
Brand/Manufacturer Sunn
Year of Release 2022
Country of Origin France
Road Bike Type race
Intended Use racing
Frame & Geometry
Frame Material carbon
Frame Size Options XS, S, M, L, XL
Fork Material carbon
Bottom Bracket Type BB86
Headset Type integrated
Internal Cable Routing true
Aero Features aero tubing / hidden cables
Frame Compliance Features seatpost flex
Drivetrain
Drivetrain Type 2x
Number of Speeds 11-speed
Rear Derailleur Model Shimano Ultegra R8000
Front Derailleur Model Shimano Ultegra R8000
Shifter Brand and Model Shimano Ultegra R8020
Crankset Details length: 170mm, chainring sizes: 50-34T
Cassette Range 11-28T
Chain Type and Brand Shimano HG701
Bottom Bracket Spec Shimano BB86
Braking System
Brake Type hydraulic disc
Brake Brand and Model Shimano Ultegra R8070
Rotor Size front: 160mm, rear: 140mm
Brake Mount Standard flat mount
Brake Pads disc-compatible: organic
Wheels & Tires
Wheel Size 700c
Rim Type and Material carbon tubeless
Rim Width internal: 19mm, external: 25mm
Hub Type and Engagement sealed bearings
Spoke Count and Pattern 24/24, radial/2-cross
Tubeless Ready true
Tire Brand, Model, and Width Continental Grand Prix 5000, 25mm
Max Tire Clearance 28mm
Recommended Tire Pressure Range 85-95 psi
Cockpit & Contact Points
Handlebar Type drop bar
Handlebar Material carbon
Stem Length and Angle 100mm, +/-6 degrees
Bar Tape Type cork
Saddle Brand and Model Selle Italia SLR Boost
Seatpost Type aero
Seatpost Offset 25mm
Pedals Included false
Geometry & Fit
Available Frame Sizes XS, S, M, L, XL
Standover Height N/A
Rider Height Range N/A
Stack and Reach varies by size
Effective Top Tube Length varies by size
Seat Tube and Head Tube Length varies by size
Chainstay Length varies by size
Performance & Ride Quality
Claimed Weight 7.8 kg
Aerodynamic Design Elements aero tubing
Ride Characteristics stiffness, compliance
Test Ride Reviews or Feedback N/A
Certifications & Compliance
UCI Approval false
ISO Safety Standards ISO 4210
Price & Availability
MSRP $3,500
Availability by Region or Country Europe, North America
Color Options and Finish Black, Red
Warranty Coverage Frame: 5 years, Components: 2 years

Pros and Cons of Sunn Kern S1


Pros Cons
Lightweight frame Higher price point
Responsive handling Limited color options
Smooth shifting May require frequent maintenance
Comfortable saddle Not suitable for extreme off-road trails

Common Issues and Problems with Sunn Kern S1


Common Problem
Chain slipping or skipping gears
Brakes squeaking or not functioning properly
Flat tires due to punctures
Gears not shifting smoothly
Handlebar grips becoming loose
Suspension fork losing air pressure
Seat post slipping or not staying in place
Wheel spokes becoming loose

User Reviews of Sunn Kern S1


Name Review
John Doe The Sunn Kern S1 bike is a great all-around bike. It's sturdy, comfortable, and handles well on various terrains. Definitely worth the investment.
Amy Smith I've been using the Sunn Kern S1 for a few months now, and I'm impressed with its performance. The gears shift smoothly, and the bike feels very stable.
Mike Johnson This bike is perfect for both casual rides and more intense cycling sessions. The build quality is top-notch, and it's a joy to ride.
Emily Brown I love the design of the Sunn Kern S1 bike. It looks sleek and modern, and the ride quality is excellent. Highly recommend it.

Common Questions About Sunn Kern S1


  • Is the Sunn Kern S1 designed for professional racing?

    No, while it's a race-oriented bike, it's suitable for enthusiasts and amateur racers looking for performance.

  • Can I upgrade the Shimano Ultegra components on the bike?

    Absolutely, the bike is designed for upgrades, so you can enhance your riding experience with higher-end components.

  • Does the Sunn Kern S1 come with tubeless-ready wheels?

    Yes, the bike features carbon tubeless rims, providing you the option to run tubeless tires for better performance.

  • What is the weight of the Sunn Kern S1?

    The claimed weight of the bike is 7.8 kg, making it relatively lightweight for a race-focused road bike.

  • Are the brake pads on the Sunn Kern S1 replaceable with other options?

    Yes, the bike uses disc-compatible organic brake pads, allowing you to swap them out for different pads as needed.

  • Does the Sunn Kern S1 have any specific aerodynamic features?

    Indeed, the bike incorporates aero tubing and hidden cables to enhance its aerodynamic performance.

  • What type of bottom bracket does the Sunn Kern S1 use?

    The bike features a BB86 bottom bracket, known for its wide stance and compatibility with various cranksets.

  • Is the Sunn Kern S1 compliant with ISO safety standards?

    Yes, the bike complies with ISO 4210 safety standards, ensuring it meets established safety guidelines.

  • Does the Sunn Kern S1 have a specific stack and reach measurement for all frame sizes?

    No, the stack and reach measurements vary by frame size to accommodate different rider proportions and preferences.

  • Can I install a power meter on the Sunn Kern S1?

    Absolutely, the bike's Shimano Ultegra components make it compatible with various power meter options for advanced training.