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Sunn Kern: every build compared

Kern S2 SRAM SX Eagle 12v

EnduroFull suspensionAluminium29"

Kern S2 Shimano Deore Shadow+ 12v

Mid-rangeAll-mountainFull suspensionAluminium2026

Kern S1 SRAM GX Eagle 12v Lunar

Mid-rangeAll-mountainFull suspensionAluminium2026

Kern Finest SRAM Eagle 90 T Type 12v

High endAll-mountainFull suspensionAluminium2026

The 4 builds of the line side by side, from the cheapest list price: what each step up changes.

Sunn Kern S2 SRAM SX Eagle 12v, side viewSunnSunn Kern S2 SRAM SX Eagle 12v
Sunn Kern S2 Shimano Deore Shadow+ 12v, side viewSunnSunn Kern S2 Shimano Deore Shadow+ 12v
Sunn Kern S1 SRAM GX Eagle 12v Lunar, side viewSunnSunn Kern S1 SRAM GX Eagle 12v Lunar
Sunn Kern Finest SRAM Eagle 90 T Type 12v, side viewSunnSunn Kern Finest SRAM Eagle 90 T Type 12v

At a glance

  • Sunn Kern S1 SRAM GX Eagle 12v Lunar is 1.68 kg lighter than Sunn Kern S2 SRAM SX Eagle 12v (brand figures).
  • Sunn Kern S1 SRAM GX Eagle 12v Lunar has the higher-range groupset: SRAM GX Eagle Lunar 12v, against SRAM SX Eagle 12v.
  • Sunn Kern S2 SRAM SX Eagle 12v has 10 mm more fork travel than Sunn Kern S2 Shimano Deore Shadow+ 12v.
Key specs8 differences
Weight 16.88 kg –Not given 15.2 kg Best of the comparison−1.68 kg 15.5 kg −1.38 kg
FrameSame for all Aluminium
As printed

KERN EN EDGE TUBING AL6061, TAPERED, BOOST THRU AXLE, 150MM

 Aluminium
As printed

KERN ALLOY 6069 EDGE TUBING BOOST 140MM

 Aluminium
As printed

KERN ALLOY 6069 EDGE TUBING BOOST 140MM

 Aluminium
As printed

NEW KERN ALLOY 6069 EDGE TUBING BOOST 140MM

Suspension Full suspension, 160 / 150 mm
As printed

Débattement 160/150 ; amortisseur FORMULA MOD E COIL 210x50

 Full suspension, 150 / 140 mm
As printed

Débattement 150/140 ; amortisseur ROCKSHOX DELUXE SELECT 185X50 TRUNNION

 Full suspension, 150 / 140 mm
As printed

Débattement 150/140 ; amortisseur MARZOCCHI BOMBER AIR 185X50 TRUNNION

 Full suspension, 150 / 140 mm
As printed

Débattement 150/140 ; amortisseur FOX FLOAT X FACTORY KASHIMA 185/50

Fork model RockShox 35 Silver R coil, TA, Boost 160mm RockShox 35 Silver R 150mm Marzocchi Bomber Z2 150mm –Not given
Shock Formula Mod E Coil 210x50 RockShox Deluxe Select 185x50 Trunnion Marzocchi Bomber Air 185x50 Trunnion Fox Float X Factory Kashima 185/50 Higher range
Wheelset 29" · Mach1 Torkx 27c 32T 29" · Mach1 Trucky 30 30mm 32T 29" · e*thirteen LG1 EN 30mm 32T 29" · DT Swiss M1900
Groupset SRAM SX Eagle 12v Shimano Deore 12v SRAM GX Eagle Lunar 12v Higher range SRAM Eagle 90 T-Type
As printed

SRAM EAGLE 90 T TYPE / SRAM EAGLE 90 12V

Brake model Formula Cura 203/180 Formula Cura 2 203/180mm Formula Cura 2 203/180mm Formula Cura 4 203/180mm
Seatpost Dropper
As printed

SDG TELLIS DROPPER SEATPOST 31.6x125MM

 Dropper · BRUTE Dropper 130MM (S) / 150MM (M) / 170MM (L)
As printed

BRUTE Dropper 130MM (S) / 150MM (M) / 170MM (L)

 Dropper · BRUTE Dropper
As printed

BRUTE Dropper

 Dropper · BRUTE Dropper 130MM (S) / 150MM (M) / 170MM (L)
As printed

BRUTE Dropper 130MM (S) / 150MM (M) / 170MM (L)

Model year–Not given 2026 2026 2026
Drivetrain–Not given–Not given 1×12 1×12

Prices

Each model's retailers, delivered to your country, and their prices over time.

Sunn Kern S2 SRAM SX Eagle 12v

Sunn Kern S2 SRAM SX Eagle 12v

Sunn Kern S2 Shimano Deore Shadow+ 12v

Sunn Kern S2 Shimano Deore Shadow+ 12v

Sunn Kern S1 SRAM GX Eagle 12v Lunar

Sunn Kern S1 SRAM GX Eagle 12v Lunar

Sunn Kern Finest SRAM Eagle 90 T Type 12v

Sunn Kern Finest SRAM Eagle 90 T Type 12v

Character

The bike at a glance: the ground it is made for, how it handles, its gears and its equipment, beside the other bikes of its kind.

  • Kern S2 SRAM SX Eagle 12v · enduro full suspension mountain bike, aluminium frame, 29" wheels
  • Kern S2 Shimano Deore Shadow+ 12v · Mountain bike very demanding, long gearing, average equipment.
  • Kern S1 SRAM GX Eagle 12v Lunar · Mountain bike very demanding, average equipment.
  • Kern Finest SRAM Eagle 90 T Type 12v · Mountain bike rather demanding, average gearing, rather high equipment.
Terrain
Sunn Kern S2 SRAM SX Eagle 12v 0%Sunn Kern S2 Shimano Deore Shadow+ 12v 85%Sunn Kern S1 SRAM GX Eagle 12v Lunar 85%Sunn Kern Finest SRAM Eagle 90 T Type 12v 78%1 bike · Sunn Kern S2 SRAM SX Eagle 12v1 bike3 bikes4 bikes1 bike · Sunn Kern Finest SRAM Eagle 90 T Type 12v2 bikes · Sunn Kern S2 Shimano Deore Shadow+ 12v · Sunn Kern S1 SRAM GX Eagle 12v Lunar
EasyDemanding

Gearing

Speed in the lowest and the highest gear at 90 rpm: lower on the left climbs easier, higher on the right goes faster.

  • Sunn Kern S2 Shimano Deore Shadow+ 12v8 km/h - 41 km/h
  • Sunn Kern Finest SRAM Eagle 90 T Type 12v8 km/h - 39 km/h
Easiest gear (climbing)Hardest gear (descending)
Sunn Kern S2 SRAM SX Eagle 12vSunn Kern S2 Shimano Deore Shadow+ 12vSunn Kern S1 SRAM GX Eagle 12v LunarSunn Kern Finest SRAM Eagle 90 T Type 12vother enduro mountain bikes

Components and specs

Every spec line by line; the higher range of a component is marked. The technical groups are folded.

Ride type1 difference
Discipline Enduro All-mountain All-mountain All-mountain
Frame and fork
Fork–Not given–Not given–Not given Aluminium °Value not published by the brand
Axles Thru-axles
As printed

BOOST THRU AXLE

–Not given–Not given–Not given
Suspension2 differences
Fork travel 160 mm 150 mm −10 mm 150 mm −10 mm 150 mm −10 mm
Rear travel 150 mm 140 mm −10 mm 140 mm −10 mm 140 mm −10 mm
Drivetrain4 differences
Groupset brand SRAM
As printed

SRAM SX EAGLE 12v

 Shimano
As printed

SHIMANO DEORE 12V

 SRAM
As printed

SRAM GX EAGLE 12V LUNAR

 SRAM
As printed

SRAM EAGLE 90 T TYPE

Shifting–Not given Mechanical
As printed

SHIMANO DEORE 12V

 Mechanical °Value not published by the brand
As printed

SRAM GX EAGLE 12V LUNAR

 Mechanical °Value not published by the brand
As printed

SRAM EAGLE 90 T TYPE

Chainrings–Not given–Not given 1 °Value not published by the brand 1 °Value not published by the brand
Gears at the backSame for all 12 12 12 12
Chainring teeth SRAM X1 DUB Boost 32T Shimano MT511 32T SRAM GX Eagle Lunar CL55 SRAM Eagle 90 165mm 32T
Cassette SRAM Eagle 12v 11-50 Shimano Deore 12v 10-51 Microspline Higher range SRAM SX Eagle 11-50 SRAM XS 1275 10-52
Rear derailleur–Not given SHIMANO DEORE 12V °Value not published by the brand SRAM GX EAGLE 12V LUNAR °Value not published by the brandHigher range SRAM EAGLE 90 T TYPE °Value not published by the brand
Brakes
Brakes–Not given Hydraulic disc °Value not published by the brand
As printed

Formula Cura Disque hydraulique

 Hydraulic disc °Value not published by the brand
As printed

Formula Cura Disque hydraulique

 Hydraulic disc °Value not published by the brand
As printed

Formula Cura 4 Disque hydraulique

Front rotorSame for all 203 mm 203 mm 203 mm 203 mm
Rear rotorSame for all 180 mm 180 mm 180 mm 180 mm
Wheels and tyres2 differences
Wheel sizeSame for all 700c / 29" 700c / 29" 700c / 29"
As printed

MAXXIS ASSEGAI 29x2.5 EXO

 700c / 29"
Rims–Not given Aluminium °Value not published by the brand Aluminium °Value not published by the brand Aluminium °Value not published by the brand
Tyres Hutchinson Griffus 29x2.50 / 29x2.40 Maxxis Assegai EXO TR 29x2.5 / Maxxis Aggressor EXO TR 29x2.3 Maxxis Assegai 29x2.5 EXO / Maxxis Aggressor 29x2.3 EXO Maxxis Assegai EXO+ TR 29x2.50 / Maxxis Dissector EXO+ TR 29x2.40
As printed

MAXXIS ASSEGAI EXO+/TR 29X2,50 AV / MAXXIS DISSECTOR EXO+/TR 29X2,40 AR

Tyre width fitted–Not given 64 mm °Value not published by the brand 64 mm °Value not published by the brand 51 mm °Value not published by the brand
Cockpit and seatpost3 differences
Dropper travel 125 mm –Not given–Not given–Not given
Handlebar width 780 mm –Not given–Not given 780 mm
Handlebar–Not given AL6061 Ø31.8 X 40MM °Value not published by the brand BRUTE ONE CNC 31.8 X 40MM °Value not published by the brand INTÉGRÉ ALU Ø31,8X45MM °Value not published by the brand
Stem–Not given AL6061 Ø31.8 X 40MM °Value not published by the brand BRUTE ONE CNC 31.8 X 40MM °Value not published by the brand INTÉGRÉ ALU Ø31,8X45MM °Value not published by the brand
Seatpost model–Not given BRUTE Dropper 130MM (S) / 150MM (M) / 170MM (L) °Value not published by the brand BRUTE Dropper °Value not published by the brand BRUTE Dropper 130MM (S) / 150MM (M) / 170MM (L) °Value not published by the brand

° Value not published by the brand

Where to buy them

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