Nukeproof Mega 275 Alloy Frame
Nukeproof Mega 275 Alloy Frame (2022)
Nukeproof Mega 275 Alloy Frame (2022)
Nukeproof Mega 275 Alloy Frame (2022)
Nukeproof Mega 275 Alloy Frame (2022)
Nukeproof Mega 275 Alloy Frame (2022)
Nukeproof Mega 275 Alloy Frame (2022)
Nukeproof Mega 275 Alloy Frame (2022)
Nukeproof Mega 275 Alloy Frame (2022)
Nukeproof Mega 275 Alloy Frame (2022)
Nukeproof Mega 275 Alloy Frame (2022)
Nukeproof Mega 275 Alloy Frame (2022)
Nukeproof Mega 275 Alloy Frame (2022)
Nukeproof Mega 275 Alloy Frame (2022)
Nukeproof Mega 275 Alloy Frame (2022)
Nukeproof Mega 275 Alloy Frame (2022)
Nukeproof Mega 275 Alloy Frame (2022)
Nukeproof Mega 275 Alloy Frame (2022)
Nukeproof Mega 275 Alloy Frame (2022)
Nukeproof Mega 275 Alloy Frame (2022)
Nukeproof Mega 275 Alloy Frame (2022)

Nukeproof Mega 275 Alloy Frame (2022)

SKU: 110608667


Nukeproof Mega 275 Alloy Frame (2022)

The Nukeproof Mega 275 Alloy Frame: Go fast or go home

A between-the-tape slayer built on the tenets of balance, predictability and absolute speed.

Originally built as the “downhiller’s trailbike” designed specifically to tackle the infamous MEGAVALANCHE enduro in France, the Nukeproof Mega has been racking up enduro stage wins and press accolades for over ten years.

The frame only version of the Mega 275 Alloy is fitted with the RockShox Super Deluxe Ultimate RCT shock, giving the bike 160mm of travel at the rear end. The Super Deluxe Ultimate RCT is the most tunable shock RockShox has ever made. The RC2T Damper features 100% independent high speed and low speed compression adjustment so you can tune it exactly as you like.

At the core of this fourth generation Mega is suspension designed to be utterly thrashed through technical terrain. The 275 frame rolls on a set of 27.5-inch wheels for maximum maneuverability and a more playful feel in the air.

How it Rides

After winning four Enduro World Series Titles in three years, the all-new Mega is an evolution of our ultimate Enduro bike. It’s progressive, predictable and is the culmination of more than a decade’s worth of refinement — a true labor of love.

In the uncompromising pursuit of the ideal balance between weight, strength and stiffness, the Nukeproof Mega Alloy 275 is built around a T6061-T6 aluminum frame. Its long, low and slack geometry is designed around our saddle offset principle, which adjusts seat tube angle across the size range to ensure the seated riding position is perfect, no matter the rider’s height.

Everything on the bike has been carefully designed for racing and hard enduro riding. We've carved out space inside the front triangle of the frame for a 750ml water bottle, the seat tube is designed for slammed dropper posts and we’ve even fitted the Mega with a threaded bottom bracket and universal derailleur hangar for easy maintenance.

The Mega’s Horst-link suspension system has been retooled in this newest generation for suppleness over small bumps while remaining supportive on the climbs. Solid mid-stroke support balanced with relatively modest anti-squat gives the Mega an active rear end that feels shockingly efficient when pedaling uphill. Anti-squat reduces as you shift down the cassette and pick up speed, making the bike come alive on descents.

It’s a bike built for hot, nasty speed and big days in variable terrain; when less energy spent pedaling up means more in the tank for shredding down.

Full Specs

Frame Only 
Frame Nukeproof Mega V4 275 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
Shock RockShox Super Deluxe Ultimate RCT, Custom LIN L1 HOTDOG S320 tune, 230x62.5mm, Bearing End, 2 bottomless tokens fitted
Headset Nukeproof, 44-56 IITS
Bearings Enduro Bearings
Weight(Size Medium) 3.87Kgs/8.53lbs (Medium)

Geometry & Sizing


Small Medium Large X-Large XX-Large
(A) Reach 435 460 480 500 520
(B) Stack 591.48 600.47 618.44 627.43 636.42
(C) Effective Top Tube Length 566.13 593.12 611.45 633.36 655.27
(D) Seattube Length 380 410 440 470 500
(E) Effective Seattube Angle 77.5° 77.5° 78° 78° 78°
(F) Seattube Angle (Actual) 71° 71° 71.5° 71.5° 71.5°
(G) Saddle Height at Saddle Offset 650 700 750 800 850
(H) Saddle Offset at Saddle Height 145.59 160.94 169.12 184.95 200.88
(I) Headtube Length 100 110 130 140 150
(J) Headtube Angle 64° 64° 64° 64° 64°
(K) Chainstay Length 435 435 435 435 435
(L) Front Centre 759.77 789.16 817.92 842.31 866.69
(M) Wheelbase 1194.66 1224.04 1252.81 1277.19 1301.58
(N) Bottom Bracket Drop 10 10 10 10 10
(O) Bottom Bracket Height 345 345 345 345 345
(P) Stand Over Height 725.49 724.6 726.15 728.82 733.51
(Q) Fork Travel 170 170 170 170 170
(R) Trail 134.42 134.42 134.42 134.42 134.42
(S) Fork Offset 37 37 37 37 37
(T) Axle to Crown  562 562 562 562 562
(U) Maximum Seatpost Insert 225 251.5 279.5 305.5 332

*All dimensions in mm unless otherwise stated

Recommended Sizing


  • FAQs
  • Frame Spec
  • Industry Reviews
  • Tech Docs
  • Where can I buy Nukeproof Bikes?
  • Nukeproof bikes, components and apparel is sold through an authorised dealer network. Check out our dealer locator for your local local stockist or preferred online store 
  • Do your bikes come with Warranty?
  • All Mega frames come with a 5 year frame warranty (Please visit for full info). On top of that we also offer an extended 2-year warranty on all components excluding wear and tear items such as bearings, brake pads, chains & cassettes etc. Our Warranty policy applies to the original owner and processed by our authorised retail partners. To see their warranty process check:
  • Where can I demo a Nukeproof bike? 
  • We run numerous demo's through the year at major events and with our dealer network. Check out for when we may be near you. If this is unavailable to you, you can always request a demo through your local authorised stockist.  
  • What size bike do I need? 
  • All our products come with a size guide. This is designed as an indication of the size that may suit you. If you are still unsure speak with one of our dealers who will be happy to help you pick the right size and model for you. 
  • How does you bike range work? 
  • Our range is named based on specification level. Not every Bike Frame will have each specification level, but in order of price they run: Sport - Race - Comp - Pro - Elite- Factory/ST (Reactor Only) - RS   
  • Can I fit a coil shock to my Mega? 
  • Simple answer is yes, the Mega suspension curve will suit a coil shock if you want to run one. In recent years air shocks have come along way and we prefer the feel and performance of them (as do all our pro team) which is why we choose to fit air shocks to all our frames and bikes. Should you wish to buy a coil shock you will need a shock size: 230x62.5mm using 25x8mm (front) and 30x8mm (rear) hardware. 
Material: Hydroformed 6061-T6 Triple-Butted Aluminium 
Fork Travel: 170mm
Axle to Crown: 562mm 
Fork Offset: 37mm
Rear Travel: 165mm
Wheels Size: 27.5"
Max Tyre Size: 2.6"
Recommended Shock Sag (Measured seated): 30-35%
Shock Size: 230x62.5mm
Shock Hardware F: 25x8mm
Shock Hardware R: 30x8mm 
Sizing: S/M/L/XL/XXL
Headtube: 44-56mm Tapered Semi-Integrated
Headset: ZS44-28.6 - T2 / ZS56/40 - B8
Bearings Required: 4x F6802 LLU MAX, 4x 6902 LLU MAX, 2x F6902 LLU MAX-EA
Seatpost: 31.6mm (Internal Routing for Dropper Seatpost)
Seat Clamp: 34.9mm
BB: Threaded 73mm BSA
Rear Hub: Boost 148x12mm
Rear Axle: Sram UDH Maxle Stealth M12x1.0 180mm (Thread Length 13mm)
Chain Guide: ISCG05
Brake Mount: 180mm Direct Post
Protection: 3D Contoured Rubber Frame Protection for DT/SS/CS

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