MY25 Sunn Radical Factory

The legend returns.
The Radical -the bike that redefined what downhill meant in the 90s, ruled the slopes and put SUNN on the map as one of the most iconic names in mountain biking history.

Now, it’s back — meaner, faster, and hungrier than ever. The new RADICAL is reborn in a full-throttle Enduro version. It carries the same fearless DNA, blending downhill power with next-level agility. Built to shred trails, crush podiums, and leave everything else in the dust.

Ready to get radical?

 

Specifications

Frame

Component Specification
Frame FULL CARBON TORAY ENDURO BOOST, INTEGRATED, 160 mm
Fork FOX 38 FLOAT FACTORY KASHIMA 170 mm, BOOST, TAPERED
Travel 170 / 160 mm
Shock FOX FLOAT X2 FACTORY KASHIMA TRUNNION 205 × 60 mm

Drivetrain

Component Specification
Rear Derailleur SRAM XO EAGLE AXS 12-Speed
Crankset XO EAGLE BOOST 165 mm × 32T
Cassette SRAM EAGLE XS1275 12-Speed 10–52 XD
Shifter SRAM AXS POD CONTROLLER EAGLE 12-Speed

Brakes

Component Specification
Brakes TRP DH-R EVO 220 / 203 mm rotors

Wheels

Component Specification
Wheel Size 29’’
Rims DT SWISS EX1700 SPLINE TUBELESS
Hubs BOOST, THRU AXLE
Tires MICHELIN WILD ENDURO MS RACING LINE 29 × 2.40 TLR

Components

Component Specification
Handlebar BRUTE ONE ALLOY 780 mm × 31.8 – Rise 25
Stem 3D FORGED ALLOY, INTEGRATED 31.8 × 45 mm
Seatpost FOX TRANSFER FACTORY KASHIMA 150 mm (S) / 180 mm (M) / 210 mm (L)
Saddle FIZIK TERRA AIDON X5

Weight

Component Detail
Total Weight 16.1 kg


Geometry

Size ST (mm) TT (mm) WB (mm) HA SA RC (mm) BB (mm) HT (mm) Reach (mm) Stack (mm)
S 360 574 1221 64° 77.5° 445 -28 100 435 628
M 410 601 1250 64° 77.5° 445 -28 110 460 637
L 460 629 1280 64° 77.5° 445 -28 120 485 646

Size Guide

Size Rider Height
S 158 – 168 cm
M 168 – 178 cm
L 178 – 188 cm
Price
$13,015.00
$13,015.00
size
14 Days Return Policy
GST included
MY25 Sunn Radical Factory
  • Overview
  • Specifications

The development team worked tirelessly to create this machine as radical as it is versatile. A unique suspension was developed around the famous single-pivot plus rocker arm system that made the Radical legendary.

Construction.

The Radical features an all-new full carbon frame — engineered with precision to deliver the perfect balance between stiffness and flexibility. Our design team selected the finest Toray carbon fibres to achieve uncompromising control and responsiveness. The result is a frame that combines exceptional stability with agility, allowing you to stay in control no matter how rough the terrain gets.

Geometry.

A radical geometry means going straight to the essence of what makes a great enduro bike. Every dimension has been fine-tuned to the millimetre:

• A 64° head angle and long reach (435/460/485 mm depending on size) ensure high-speed stability and confidence on steep descents.

• A 77.5° seat tube angle provides an efficient pedalling position for technical climbs and quick acceleration.

• The low bottom bracket height (345 mm) improves stability in fast sections.

• 445 mm chainstays offer the perfect balance between traction and cornering precision.

Together, these elements give the Radical an ultra-stable, planted ride with just the right amount of liveliness when you push it.

Suspension.

The Radical uses a high-pivot single-link suspension system with a rocker linkage — a proven setup that has built its legendary reputation over the years. On the trail, the suspension feels incredibly predictable and quiet, absorbing hits with ease and letting you carry more speed through rough terrain. It remains composed and efficient at high speed yet surprisingly dynamic and playful for a bike of its travel and category.

Be Radical.

Recommended for You