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Mega Alloy 297 / 290

Mega 290 Alloy Pro MEA01Bs(XL)

  • S
    297
  • M
    297
  • L
    297
  • XL
    290
  • XXL
    290
What is my size?
€4,499.00
Checkout is not available in your country. Contact your local dealer to order.

About Mega Alloy 297 / 290

The Nukeproof Mega is an enduro bike built on the tenets of balance, predictability, and absolute speed. Originally conceived as the downhiller’s trail bike, it was purpose-built to conquer the legendary MEGAVALANCHE race in France and spawned a new category of bike that would be known as Enduro forever more .

Over the past decade, the Mega has earned its reputation as a race-winning machine — with multiple Enduro World Series stage wins and four overall EWS titles to its name. It’s the evolution of relentless development and refinement, shaped by the feedback of world-class racers and dedicated riders alike.

Now in its fourth generation, every detail of the Mega has been optimised for speed, control, and efficiency — built to go flat-out, wherever the trail leads.

Mega Alloy 297 / 290

Optimized Geometry and Suspension Kinematics

The Nukeproof Mega’s geometry and suspension have been refined to balance stability, predictability and outright speed. Built around Nukeproof’s latest Horst link system, the kinematics are tuned to be supple off the top for small bump sensitivity, with strong mid stroke support for cornering and pumping, and a progressive end stroke that maintains control on big impacts. Optimized anti squat keeps pedalling efficient on climbs while preserving a lively, planted feel on descents. Complementing this is Nukeproof’s Long, Low, Slack and Steep geometry philosophy. Each size uses a dynamic saddle offset and size specific seat tube angles to place the rider in an efficient and comfortable pedalling position. The result is a chassis that climbs with precision, descends with confidence and remains balanced at race pace, ready to perform between the tape and beyond.

Optimized Geometry and Suspension Kinematics

Design Features

The Nukeproof Mega is engineered from the ground up to make every ride and every maintenance task straightforward. Practical details prioritise real world use, with room for a full size 750 ml water bottle inside the front triangle and an accessory mount under the top tube for tools or spares so essentials stay close at hand. The frame provides mud clearance for tyres up to 2.6 inches, allowing consistent speed in harsh conditions. Built to last, the Mega uses MAX bearings throughout for durability and smooth performance in all weather. Accessible hardware, sensible Allen key sizes and laser etched torque markings make servicing clear and repeatable. To keep everything protected and quiet, the frame features 3D contoured rubber guards on the down tube, seatstays and chainstays. Every feature serves a bike that is fast, functional and tough enough for the world’s hardest trails.

Design Features

Aluminium Frame Construction

The latest Nukeproof Mega is built around a 6061 T6 aluminium chassis engineered to achieve the ideal balance of strength, stiffness and durability. Every element of the frame, including all forged parts, has been designed with precision to deliver the planted and predictable feel expected from a race ready enduro bike. The use of hydroformed tubing and advanced welding techniques ensures exceptional reliability without adding unnecessary weight. The result is a frame made to handle the toughest trails in the world while remaining easy to maintain and service, making it the perfect choice for privateers and racers who demand both performance and longevity.

Aluminium Frame Construction

Specifications

  • Frame
    Nukeproof Mega V4 290 Alloy, 160mm Travel, custom triple butted hydro-formed tube set, internal cable routing, ISCG 05 mount, Enduro Bearings, Threaded 73mm BB, Boost 148mm rear axle spacing, 3D contoured Rubber frame protection.
  • Fork
    RockShox Zeb Select +, Charger 3.1 RC2, 29" Boost 15x110mm Maxle Stealth, Debonair, 170mm, Gloss Black, 44mm Offset
  • Rear Shock
    RockShox Vivid Select+ Air, 230x62.5mm, Bearing End, Custom Tuned with 1 Token, Rebound 25, Compression 30, 4x Lockout. Externally Adjustable Bottom Out
  • Wheelset
    Nukeproof Neutron V2. F: 29", 15x110mm Boost, R:29", HG Freehub, 148x12mm Boost
  • Tyres
    F: Schwalbe Magic Mary Evo, Super Gravity, TLE, 62-622 / 29x 2.4" Ultra Soft, R: Schwalbe Tacky Chan Evo, Super Gravity, TLE, 62-622 / 29x 2.4" Soft
  • Crankset
    SRAM Eagle 90, 12-Speed, DUB, 165mm, 30T T-Type, 55mm CL
  • Shifter
    SRAM Eagle 90, 12-Speed MMX
  • Rear Derailleur
    Sram Eagle 90
  • Chain
    SRAM GX T-Type, 12-Speed Eagle, Flattop, PowerLock, 116 Links
  • Cassette
    SRAM CS1270 T-Type, 12-Speed, 10-52T
  • Chain Guide
    Nukeproof guide with Bash, 28-36T, ISCG-05, 55mm CL, Black
  • Front Brake
    SRAM Maven Bronze, Organic pads
  • Rear Brake
    SRAM Maven Bronze, Organic pads
  • Rotors
    F: SRAM Centerline 2.0 200mm Rounded, R: SRAM Centerline 2.0 200mm Rounded
  • Handlebar
    Nukeproof Neutron V2 25mm Rise, Width - S780mm, M780mm, L800mm
  • Stem
    Nukeproof Horizon, 45mm, Black
  • Saddle
    Nukeproof Horizon Enduro, Crn/Ti Rails
  • Seatpost
    Tranz-X YS108 Internal with SRAM Remote lever, S:150mm drop; M:170mm drop; L:200mm drop; XL/XXL:230mm drop
  • Headset
    Nukeproof, 44-56 IITS
  • Grips
    Nukeproof Neutron Single Lock On, Diameter - NP1 - 29.6mm, NP2 & NP3 - 31.8mm
  • Pedals
    Not included **
  • Bike Weight
    16.6kg/36.5lbs (Tubeless)

Geometry

What is my size?
SMALL - 297 MEDIUM - 297 LARGE - 297 X-LARGE - 290 XX-LARGE - 290
A Reach 430 455 475 495 515
B Stack 621.16 621.16 639.22 648.24 657.27
C Effective top tube 567.7 592.71 610.87 632.79 654.71
D Seattube length 380 410 440 470 500
E Effective seattube angle 77.5° 77.5° 78° 78° 78°
F Actual seattube angle 71° 71° 71.5° 71.5° 71.5°
G Saddle height for saddle offset 650 700 750 800 850
H Saddle offset at saddle height 142.22 158.59 166.66 181.58 196.49
I Headtube length 100 100 120 130 140
J Headtube angle 64° 64° 64° 64° 64°
K Chainstay length 435 435 435 440 440
L Front centre 758.5 783.5 812.11 836.42 860.72
M Wheelbase 1192.5 1217;5 1246.1 1275.39 1299.7
N Bottom bracket drop 30 / 10 30 / 10 30 / 10 30 30
O Bottom bracket height 345 345 345 345 345
P Stand over height 721.75 720.28 721.3 720.73 / 730.78 726.77 / 736.07
Q Fork travel 170 170 170 170 170
R Trail 132.33 132.33 132.33 132.33 132.33
S Fork offset 42 42 42 42 42
T Axl te crown 582 582 582 582 582
U Maximum seatpost insert 216 245 270 301 330

Let us inspire you!

Can’t decide between a few colors or designs? Would you like to see a certain design in more detail? Then check out some of these cool designs, selected to help you choose. Let us inspire you!

+ 63 photos

Help & support

How can we help?

Download Frame Specification Sheet
Convert your Nukeproof Mega Alloy bike to tubeless

Download document here.

2021 Mega Alloy exploded diagram with torque settings
2021 Mega MX Fitting Guide

Download 2021 Mega MX Fitting Guide here

Fast Shock Recommended Base Settings

Download Fast Shock Recommended Base Settings here

Push Shock Recommended Base Settings

Download Push Shock Recommended Base Settings here

EXT Shock Recommended Base Settings

Download EXT Shock Recommended Base Settings here

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