The Nukeproof Mega Alloy 297 is the fourth generation of the Mega, the enduro bike that has won four EWS overall titles and multiple stage victories on the World Series circuit. The frame uses a spring-mount linkage where the shock is mounted within the frame, providing progressive suspension, high pedal efficiency, and predictable behavior on technical terrain. The 297 configuration rides 29″ front and 27.5″ rear, with 165mm rear travel and a 170mm fork.
The Mega started as Sam Hill's race bike, purposefully built for the Megavalanche in Alpé d'Huez, one of the toughest mass-start downhill races in the world. That DNA is still in the fourth-generation frame: efficient enough to climb for an hour, fast enough to win a full EWS stage. The Nukeproof Mega is an enduro bike that revolves around balance, predictability, and pure speed. Built to dominate the descent and purposefully optimized for the legendary MEGAVALANCHE enduro race in the French Alps.
The framesets are also available separately, including rear suspension, in the color scheme of your choice.
This way, you build your own dream setup — from frame to finishing touch.
€ 4.499,00 incl. VAT
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Over the past decade, the Mega has built a reputation as a race-winning machine, with multiple stage victories in the Enduro World Series and four EWS overall titles. It is the result of relentless development and refinement, shaped by feedback from world-class riders and dedicated competitors.
Now in its fourth generation, every detail of the Mega has been optimized for speed, control, and efficiency. Built to go all out — wherever the trail leads.
Both mountain bikes ride a mixed-wheel 297 configuration. Yet they are fundamentally different bikes. The Mega has a “four-bar linkage” system for greater pedal efficiency. The Giga shares the suspension travel platform with the Dissent by having more travel volume, resulting in more DH feel.
The Mega 297 is the right choice if you ride serious enduro, technical descents, long climbs, and varied terrain. The Giga is a better fit if you want the travel volume and confidence of a downhill bike, with the ability to do the climbing yourself.
On the descent, the 64° head tube angle is slightly steeper than on the Giga, which makes the bike more direct and responsive on less extreme terrain.
| Article number | SBIMECNKP003 |
| Brand | Nukeproof |
| Model | Mega Alloy 297 / 290 |
| Draft code | MEC01As |
| Mate | L-297 |
| Series | Enduro |
| Frame | Nukeproof Mega V4 297 Alloy, 165mm 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 |
| Material | Aluminum |
| Groupset | Sram Eagle 90 |
| Crankset | SRAM Eagle 90, 12-Speed, DUB, 165mm, 32T T-Type, 55mm CL |
| Cassette | SRAM CS1270 T-Type, 12-Speed, 10-52T |
| Electric bike | No |
| Brake type | Post Mount |
| Front brake | SRAM Maven Bronze, Sintered pads |
| Rear brake | SRAM Maven Bronze, Sintered pads |
| Rear derailleur | Sram Eagle 90 |
| Send | Nukeproof Neutron V2 25mm Rise, Width – S780mm, M780mm, L800mm |
| Vote | Nukeproof Horizon, 45mm, Black |
| Seatpost | Tranz-X YS108 Internal with SRAM Remote lever, S:150mm drop; M:170mm drop; L:200mm drop; XL/XXL:230mm drop |
| Saddle | Nukeproof Horizon Enduro, Crn/Ti Rails |
| Wheelset | Nukeproof Neutron V2. F: 29″, 15x110mm Boost, R:27.5″, 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, 62-584 / 27.5x 2.4″ Soft |
| Configurable | Yes |
| Gender |
|
| EAN | 5400928690249 |
| Pedals | Not included ** |
| Frame Level | Hydro Series |
| In use | New |
| Warranty period | Lifetime, transferable warranty after registration within 30 days after purchase, with required annual servicing at an authorized dealer. |
| 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 seat tube angle | 77.5° | 77.5° | 78° | 78° | 78° |
| F | Actual seat tube 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 center | 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 to crown | 582 | 582 | 582 | 582 | 582 |
| YOU | Maximum seatpost insert | 216 | 245 | 270 | 301 | 330 |
The Mega has 165mm of rear travel, is more pedal-efficient, and is geared more towards racing and varied enduro terrain. The Giga shares the suspension travel platform with the Dissent, has 180mm of travel on both sides, and sits closer to a mini DH. The Mega climbs better. The Giga goes deeper into the terrain.
Yes. The Mega has been the EWS overall winner four times and has achieved multiple stage victories on the track. It has been used by professional enduro mountain bikers at the highest level. For national or international competitions, the Mega is a proven choice.
Unsure which choices best suit your driving style and terrain? Contact us for a demo ride. Based on real driving experience, we will help you find the setup that works for you.
Lifetime warranty on the frame, transferable upon registration within 30 days of purchase. Annual maintenance at an authorized dealer is required.
| 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 seat tube angle | 77.5° | 77.5° | 78° | 78° | 78° |
| F | Actual seat tube 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 center | 758.5 | 783.5 | 812.11 | 836.42 | 860.72 |
| M | Wheelbase | 1192.5 | 12175 | 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 to crown | 582 | 582 | 582 | 582 | 582 |
| YOU | Maximum seatpost insert | 216 | 245 | 270 | 301 | 330 |
