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Sunn Radical: every build compared

Radical S1 Shimano XT Rd-m8100 12v

High endEnduroFull suspensionCarbon2026

Radical Finest SRAM GX Eagle Lunar 12v

High endEnduroFull suspensionCarbon2026

Radical Factory SRAM XO Eagle AXS 12v

Top of the rangeEnduroFull suspensionCarbon2026

The 3 builds of the line side by side, from the cheapest list price: what each step up changes.

Sunn Radical S1 Shimano XT Rd-m8100 12v, side viewSunnSunn Radical S1 Shimano XT Rd-m8100 12v
Sunn Radical Finest SRAM GX Eagle Lunar 12v, side viewSunnSunn Radical Finest SRAM GX Eagle Lunar 12v
Sunn Radical Factory SRAM XO Eagle AXS 12v, side viewSunnSunn Radical Factory SRAM XO Eagle AXS 12v

At a glance

  • Sunn Radical Finest SRAM GX Eagle Lunar 12v is 900 g lighter than Sunn Radical S1 Shimano XT Rd-m8100 12v (brand figures).
  • Sunn Radical Finest SRAM GX Eagle Lunar 12v has the higher-range groupset: SRAM GX Eagle Lunar 12v, against Shimano XT / Deore.
Key specs7 differences
Model yearSame for all 2026 2026 2026
Weight 16.7 kg 15.8 kg Best of the comparison−900 g 16.1 kg −600 g
FrameSame for all Carbon
As printed

Full carbon Toray Enduro Boost, integrated, 160 mm

 Carbon
As printed

FULL CARBON TORAY ENDURO BOOST, INTEGRATED, 160MM

 Carbon
As printed

FULL CARBON TORAY ENDURO BOOST, INTEGRATED, 160MM

SuspensionSame for all Full suspension, 170 / 160 mm
As printed

Débattement : 170/160 (av/ar)

 Full suspension, 170 / 160 mm
As printed

Débattement 170/160 ; amortisseur FOX FLOAT X2 FACTORY KASHIMA TRUNNION 205/60

 Full suspension, 170 / 160 mm
As printed

Débattement 170/160 ; amortisseur FOX FLOAT X2 FACTORY KASHIMA TRUNNION 205/60

Fork model RockShox ZEB Debonair+ Rush RC Higher range
As printed

RockShox ZEB, Debonair+, Rush RC, 170 mm, Boost, tapered

 Fox 38 Float Factory Kashima 170mm, Boost, tapered Fox 38 Float Factory Kashima 170mm, Boost, tapered
Shock RockShox Super Deluxe Select Trunnion 205/60
As printed

Amortisseur : RockShox Super Deluxe Select Trunnion 205/60

 Fox Float X2 Factory Kashima Trunnion 205/60 Higher range Fox Float X2 Factory Kashima Trunnion 205/60 Higher range
Wheelset 29" · E-Thirteen LG1+ / Brute One
As printed

Jantes : E-Thirteen LG1+, 29'', 32T ; Moyeu : Brute One, 32T, Boost, thru axle

 29" · DT Swiss E1900 Spline tubeless 29" · DT Swiss EX1700 Spline tubeless
DrivetrainSame for all 1×12 1×12 1×12
Groupset Shimano XT / Deore
As printed

Dérailleur arrière : Shimano XT RD-M8100, 12V ; Manette : Shimano Deore SL-M6100, 12V

 SRAM GX Eagle Lunar 12v Higher range
As printed

SRAM GX EAGLE LUNAR 12V AR / SRAM GX EAGLE 12V

 SRAM XO Eagle AXS 12v
Brake model Formula Cura 2
As printed

Freins : Formula Cura 2, 220/203

 Formula Cura 4 220/203 TRP DH-R EVO 220/203
Seatpost Dropper · BRUTE DROPPER 130MM (S)
As printed

Tige de selle : Brute Dropper, 130 mm (S), 150 mm (M), 170 mm (L/XL)

 Dropper · BRUTE DROPPER 130MM (S)
As printed

BRUTE DROPPER 130MM (S), 150MM (M), 170MM (L/XL)

 Dropper · FOX TRANSFER FACTORY KASHIMA 150MM (S)
As printed

FOX TRANSFER FACTORY KASHIMA 150MM (S), 180MM (M), 210MM (L)

Prices

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

Sunn Radical S1 Shimano XT Rd-m8100 12v

Sunn Radical S1 Shimano XT Rd-m8100 12v

Sunn Radical Finest SRAM GX Eagle Lunar 12v

Sunn Radical Finest SRAM GX Eagle Lunar 12v

Sunn Radical Factory SRAM XO Eagle AXS 12v

Sunn Radical Factory SRAM XO Eagle AXS 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.

  • Radical S1 Shimano XT Rd-m8100 12v · Mountain bike rather for smooth ground, rather high equipment.
  • Radical Finest SRAM GX Eagle Lunar 12v · Mountain bike rather for smooth ground, rather high equipment.
  • Radical Factory SRAM XO Eagle AXS 12v · Mountain bike rather for smooth ground, very high equipment.
Terrain
Sunn Radical S1 Shimano XT Rd-m8100 12v 38%Sunn Radical Finest SRAM GX Eagle Lunar 12v 38%Sunn Radical Factory SRAM XO Eagle AXS 12v 38%1 bike1 bike5 bikes · Sunn Radical S1 Shimano XT Rd-m8100 12v · Sunn Radical Finest SRAM GX Eagle Lunar 12v · Sunn Radical Factory SRAM XO Eagle AXS 12v4 bikes
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 Radical S1 Shimano XT Rd-m8100 12v8 km/h - 40 km/h
  • Sunn Radical Finest SRAM GX Eagle Lunar 12v8 km/h - 40 km/h
  • Sunn Radical Factory SRAM XO Eagle AXS 12v8 km/h - 40 km/h
Easiest gear (climbing)Hardest gear (descending)
Sunn Radical S1 Shimano XT Rd-m8100 12vSunn Radical Finest SRAM GX Eagle Lunar 12vSunn Radical Factory SRAM XO Eagle AXS 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 type
DisciplineSame for all Enduro Enduro
As printed

VTT Enduro conçu pour le plaisir, la performance, et taillé pour la compétition

 Enduro
As printed

VTT Enduro conçu pour le plaisir, la performance, et taillé pour la compétition

Frame and fork
AxlesSame for all Thru-axles
As printed

Brute One, 32T, Boost, thru axle

 Thru-axles
As printed

BOOST, THRU AXLE

 Thru-axles
As printed

BOOST, THRU AXLE

Suspension
Fork travelSame for all 170 mm 170 mm 170 mm
Rear travelSame for all 160 mm 160 mm 160 mm
Drivetrain5 differences
Groupset brand Shimano
As printed

Shimano XT RD-M8100, 12V

 SRAM SRAM
Mixed groupset yes –Not given–Not given
Shifting Mechanical °Value not published by the brand
As printed

SHIMANO XT RD-M8100 12V AR

 Mechanical °Value not published by the brand
As printed

SRAM GX EAGLE LUNAR 12V AR

 Electronic, wireless
As printed

SRAM AXS POD CONTROLLER EAGLE 12V

ChainringsSame for all 1 1 °Value not published by the brand 1 °Value not published by the brand
Gears at the backSame for all 12 12 12
Chainring teeth Shimano MT512 32T 165 mm
As printed

Pédalier : Shimano MT512, 12V, 165 mm, 32T

 SRAM GX Eagle Boost 165mm 32T SRAM XO Eagle Boost 165mm 32T
Cassette Shimano Deore CS-M6100 10-51
As printed

Cassette : Shimano Deore CS-M6100, 12V, 10-51, Microspline

 SRAM Eagle XG1275 12v 10-52 XD SRAM Eagle XS1275 12v 10-52 XD
Rear derailleur SHIMANO XT RD-M8100 12V AR °Value not published by the brandHigher range SRAM GX EAGLE LUNAR 12V AR °Value not published by the brand SRAM XO EAGLE AXS 12V AR °Value not published by the brand
Crank length 165 mm –Not given–Not given
Brakes
BrakesSame for all 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

 Hydraulic disc °Value not published by the brand
As printed

TRP DH-R EVO Disque hydraulique

Front rotorSame for all 220 mm 220 mm 220 mm
Rear rotorSame for all 203 mm 203 mm 203 mm
Wheels and tyres1 difference
Wheel sizeSame for all 700c / 29"
As printed

Taille des roues : 29''

 700c / 29" 700c / 29"
RimsSame for all Aluminium °Value not published by the brand Aluminium °Value not published by the brand Aluminium °Value not published by the brand
Tubeless readySame for all yes yes °Value not published by the brand yes °Value not published by the brand
Tyres Michelin Wild Enduro MS Racing Line
As printed

Michelin Wild Enduro MS Racing Line, 29x2.40, TLR

 Michelin Wild Enduro MS Racing Line 29x2.40 TLR Michelin Wild Enduro MS Racing Line 29x2.40 TLR
Tyre width fittedSame for all 61 mm °Value not published by the brand 61 mm °Value not published by the brand 61 mm °Value not published by the brand
Cockpit and seatpost1 difference
Handlebar widthSame for all 780 mm 780 mm 780 mm
HandlebarSame for all 3D FORGED ALLOY, INTEGRATED 31.8X45MM °Value not published by the brand 3D FORGED ALLOY, INTEGRATED 31.8X45MM °Value not published by the brand 3D FORGED ALLOY, INTEGRATED 31.8X45MM °Value not published by the brand
StemSame for all 3D FORGED ALLOY, INTEGRATED 31.8X45MM °Value not published by the brand 3D FORGED ALLOY, INTEGRATED 31.8X45MM °Value not published by the brand 3D FORGED ALLOY, INTEGRATED 31.8X45MM °Value not published by the brand
Seatpost model BRUTE DROPPER 130MM (S) °Value not published by the brand BRUTE DROPPER 130MM (S) °Value not published by the brand FOX TRANSFER FACTORY KASHIMA 150MM (S) °Value not published by the brand
Geometry
Geometry size M
As printed

Géométrie (S / M / L)

–Not given–Not given
Stack 637 mm –Not given–Not given
Reach 460 mm –Not given–Not given
Head angleSame for all 64 ° 64 ° 64 °
Seat angleSame for all 77.5 ° 77.5 ° 77.5 °
ChainstaysSame for all 445 mm 445 mm 445 mm
Wheelbase 1,250 mm –Not given–Not given

° Value not published by the brand

Where to buy them

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