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4Ever Sonnic GX full-suspension mountain bike Shiny Black/Hologram

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Our Code: K4E-26062-21
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Full-suspension mountain bike, 29" carbon frame, RS SID ULTIMATE 120 mm fork, RS SIDLUXE 120 mm shock, SRAM GX Eagle AXS 1x12.

Detailed Description
4ever

The 4EVER brand is a Czech bicycle manufacturer with a long-standing tradition, combining precise workmanship, modern technology, and excellent value for money. 4EVER bikes are designed and…

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Full-suspension mountain bike, 29" carbon frame, RS SID ULTIMATE 120 mm fork, RS SIDLUXE 120 mm shock, SRAM GX Eagle AXS 1x12.

Detailed Description
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Description

Some parts of this page are translated automatically, so please excuse any imperfections.

4Ever Sonnic GX is a race-tuned XC and marathon MTB on 29" wheels. It targets experienced riders who want a lightweight full-suspension bike with wireless shifting and remote suspension control. The spec combines a SRAM GX Eagle AXS T-Type drivetrain and Shimano Deore XT brakes.

Frame and geometry

The frame is made from the Carbon Full High Modulus 29" carbon composite for use with 29" wheels. The geometry features a 66° head angle and a 76° seat angle. Chainstay length is 440 mm, and wheelbase grows by size from 1153 to 1230 mm. 

Components

Drivetrain: Shifting is handled by the SRAM AXS Pod and a SRAM GX Eagle AXS T-Type rear derailleur in a 1x12 setup. The SRAM GX Eagle T-Type cassette has a 10–52T range, and the bottom bracket is Integrated Press Fit.

Brakes: Shimano BR-M8100 disc brakes with Shimano BL-M8100 levers run 180 mm rotors up front and 160 mm at the rear.

Wheels and tires: The wheelset is built around MAVIC CROSSMAX rims in 29". Tires are Schwalbe Racing Ray 29x2,35 up front and Schwalbe Racing Ralph 29x2,35 at the rear.

Cockpit: Ritchey WCS Trail handlebars are 760 mm wide and paired with a Ritchey WCS Trail stem. Dropper-post duties are handled by a RockShox Reverb AXS with 125/150 mm travel, and the saddle is a Selle Italia Novus Boost Evo X-Cross SF.

Ride characteristics

The high-modulus carbon frame supports direct power transfer during acceleration and on climbs. The 120 mm travel of the RockShox SID Ultimate fork and SIDLuxe Ultimate shock is aimed at XC courses and marathons. A 66° head angle increases stability on descents and at higher speeds. The Racing Ray and Racing Ralph tire combination prioritizes low rolling resistance and predictable tracking.

Who it’s for

This bike is designed for sporty and race use in cross-country and marathon riding, where speed, weight, and efficiency matter. It suits riders who want AXS wireless shifting and a dropper post for technical sections. In this class, it targets modern XC full-suspension bikes on a 29" platform with more progressive geometry.

Key specifications

  • Frame: Carbon Full High Modulus 29"
  • Suspension: RockShox SID Ultimate 3P Remote 120 mm + RockShox SIDLuxe Ultimate 3P Remote 120 mm
  • Drivetrain: SRAM GX Eagle AXS T-Type, 1x12, 10–52T cassette, 34T chainring
  • Brakes: Shimano BR-M8100, 180/160 mm rotors
  • Wheels: 29", MAVIC CROSSMAX rims
  • Tires: Schwalbe Racing Ray 29x2,35 / Racing Ralph 29x2,35
  • Seatpost: RockShox Reverb AXS 125/150 mm
  • Weight: 12.2 kg

EAN: 8592026062213

This product complies with the requirements of Regulation (EU) 2023/988 on general product safety.

Manufacturer: 4EVER, s.r.o., Moravská 842, 742 13 Studénka, CZECH REPUBLIC, +420 556 402 639, bike@4ever.cz, www.4ever.cz

Specifications

Frame Set
Frame

Carbon Full High Modulus 29"

Fork

RS SID ULTIMATE 3P Remote 120

Rear Shock

RS SIDLUXE ULTIMATE 3P Remote 120

Colour

Shiny Black/Hologram

Wheels
Tires

SCHWALBE Racing Ray 29x2,35 / SCHWALBE Racing Ralph 29x2,35

Rims

MAVIC CROSSMAX

Drivetrain
Shifters

SRAM AXS Pod

Rear Derailleur

SRAM GX Eagle AXS T-Type 12SPD

Crankset

SRAM GX Eagle T-Type 34T 12SPD

Cassette

SRAM GX Eagle T-Type 12SPD 10-52T

Bottom Bracket

Integrated Press Fit

Chain

SRAM GX Eagle T-Type 12SPD

Components
Handlebars

RITCHEY WCS TRAIL 760mm

Stem

RITCHEY WCS TRAIL

Brakes

SHIMANO BR-M8100 (180/160)

Brake Levers

SHIMANO BL-M8100

Saddle

SELLE ITALIA NOVUS BOOST EVO X-CROSS SF

Seatpost

RS REVERB AXS 125/150mm

General Information
Weight

12.2

Frame Size

XL (20,5 - 21,5)

Frame Material

Carbon

Designed for

Mens / UNI

Gearing

1x12

Travel

100-120 mm (XC/Marathon)

Model Year

2026

Colour

Black

Activity

Mountain Biking

The wheel manufacturer reserves the right to change the wheel specifications without providing reasons. In exceptional cases, the delivered product may differ from the specified specifications and images due to improved availability or functionality of the wheel.

4ever

The 4EVER brand is a Czech bicycle manufacturer with a long-standing tradition, combining precise workmanship, modern technology, and excellent value for money. 4EVER bikes are designed and…

More about the brand 4ever

Do you need help choosing the right product?
Contact us.

Ask a question
+43 144 20070 Mon - Fri: 10:00 am to 15:00 pm
Radek - Technical Support
Radek Technical Support

Product reviews

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