Nukeproof Giga 297 Carbon 2021

Nukeproof Giga 297 Carbon 2021

Gluttony – Habitual greed or excess.

As riders, we are all guilty of the gluttonous sin; we never stop striving, never stop pushing, enough is never enough in the hunt for the ultimate. It’s a constant push for bigger, longer, rougher and faster with ever increasing demands on the performance and capabilities of our bike.  

It’s a motto that athletes like Sam Hill live by. The new Nukeproof Giga is the embodiment of this idea; Designed to be the ultimate hard-hitting Super-Enduro weapon for when you just need more.    

The pursuit for performance is endless. Developed with our elite athletes we are now offering the Giga in an all-new mixed (MX) wheel size platform. The Giga 297 is a seriously capable machine, paring a 29” wheel up front with a 27.5” wheel out back. Why two sized wheels? The 29” wheel up front to maximize grip and rolling efficiency whilst the 27.5” wheel out back, ensures nimble handling for maneuverability and extra clearance for riders when leaning off the back of the bike.  

With 180mm rear travel; the Giga is a monster truck of a bike that has travel in reserve for when you need it. But to pigeonhole it as a point and shoot machine would be a disservice as it is so much more capable than this might suggest! Due to the way that it uses its travel; the Giga gives you the feel of a big bike, yet the versatility of a modern super-enduro bike. The Giga has a dynamic and confidence inspiring ride to help you push your limits in all kinds of terrain. It’s equally at home at big mountain technical enduro stages of venues like La Thuile, as it is lapping the biggest lines in the Whistler bike park.   

The suspension is designed to be super supple off the top, whilst being supportive in the mid stroke and progressive throughout the rest of the travel. The anti-squat is optimized to ensure the Giga descends like a hooligan yet behaves itself on the climb back to the top for the next run. 

The suspension platform is based on the same horseshoe driven linkage as our award-winning Dissent downhill frame, albeit now with a 2-stage main pivot flip chip. Using an eccentric axle system, riders can alter the Kinematic progressivity; so the bike can be tailored to suit the conditions on the trail with only an 8mm allen key. 

  • Setting 1 = 25.5% progression  
  • Setting 2 = 29% progression.  

Both settings have a super supple beginning for small bump compliance. They also both have good mid-stroke support for better cornering and pumping. Like the Dissent, the progression drops off in the end stroke to prevent mid-stroke harshness or spiking and allows more tuning options with volume spacers.  

The + Progressive setting can be used to add shock progression on a coil set up just like adding a volume spacer to an air shock. The added suppleness is also good in wet and slippery conditions.  

The Giga Frame is constructed completely from UD 700/800 Carbon fiber. This allowed us to optimize the stiffness and compliance of the frame parts individually. The front triangle has been tailored for stability and precision, whilst the rear triangle was designed for compliance to help tracking and provide grip. Another bonus of the carbon rear triangle is that it has a lower un-sprung mass for ultimate suspension performance. 

Available in 5 sizes (Small to XXL) in 27.5”, 29” or new Mixed (Front 29”/Rear 27.5” wheel sizes) wheel sizes, there is the perfect option for everyone. The frame geometry is Long, Low, Slack and Steep as it is based around our saddle offset principle, which ensures the seated riding position is tailored across all sizes, with steeper seat angles on bigger frames. The Seat tube is also designed for maximum seat post insertion to allow maximum drop. 

The Giga is also sculptured to fit a 750ml water bottle (carbon bottle cage included) as well as an accessory mount under the top tube for emergency trail tools. All models also feature an integrated rear mud guard and plenty of clearance for up to 2.5” tyres. The frames feature a clear paint protection kit as standard with 3D contoured rubber downtube, seat and chain stay protection. 

The Nukeproof GIGA: Gluttony is not a sin. 


  • Super Enduro Bike
  • Nukeproof T700/800 UD woven Carbon Fiber frame
  • 180mm Rear travel
  • Comes with 3D Contoured rubber protection and clear paint protection kits
  • Sizes Available: Small, Medium, Large


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Nukeproof Giga 297 Carbon 2021
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Full Specs

Giga 297 MX Frame Only
Frame Nukeproof Giga 297 Carbon, 180mm Travel, ultra-strong monocoque UD Carbon Fibre frame, adjustable main pivot, ISCG 05 mounts, Threaded 73mm BB. Nukeproof Giga 297 Carbon, 180mm Travel, ultra-strong monocoque UD Carbon Fibre frame, adjustable main pivot, ISCG 05 mounts, Threaded 73mm BB.
Fork Fox 38 Float, Factory Series, Kashima, Grip 2 Damper, 180mm, 44mm Offset, BOOST, Black (SHORT ID: D6GX)
Shock Fox Float X2, Factory Series, Kashima, EVOL, 2 Position lever, Custom CM, RM, Rezi CM tune, 205x65mm, Trunnion with Bearing End, 1x 0.3 spacer fitted. (SHORT ID: D63P) Fox Float X2, Factory Series, Kashima, EVOL, 2 Position lever, Custom CM, RM, Rezi CM tune, 205x65mm, Trunnion with Bearing End, 1x 0.3 spacer fitted. (SHORT ID: D63P)
Front Wheel Nukeproof Horizon V2 29", 6 Bolt, 110x15mm
Rear Wheel Nukeproof Horizon V2 27.5", 6 Bolt, Shimano XD Driver, 148x12mm
Tyres Front: Maxxis Assegai 3C MAXXGRIP/DD/TR 29” x 2.5WT, Rear: Maxxis Minion DHR II 3C MAXXTERRA/DD/TR 27.5” x 2.4WT
Crankset SRAM Descendant Carbon Eagle 12-Speed, 170mm, 32T, B148, DUB
Shifter SRAM XO1 Eagle 12-Speed, Black
Rear Deraileur SRAM XO1 Eagle 12-Speed, Black
Chain SRAM GX Eagle 12-Speed
Cassette SRAM XO1 Eagle 12-Speed, CS XG1295 EAGLE 10-52T
Chain Guide Nukeproof Guide with Bash, 28-36T, ISCG-05, black
Brakes SRAM Code RSC, Sintered pads
Front Rotor SRAM Centreline, 200mm
Rear Rotor SRAM Centreline, 200mm
Handlebars Nukeproof Horizon V2 25mm Rise, Width - (S780mm, M780mm, L800mm)
Stem Nukeproof Horizon, 50mm, 31.8mm Black
Saddle Nukeproof, Black
Seatpost RockShox Reverb Stealth with 1x Remote, 31.6mm; S: 346mm length, 125mm drop; M: 409mm length, 150mm drop; L: 462mm length, 175mm drop.
Headset Nukeproof, 44-56 IITS Nukeproof, 44-56 IITS
Grips Nukeproof Sam Hill Signature
Accessories Nukeproof Carbon Water Bottle Cage Nukeproof Carbon Water Bottle Cage
Weight: (Size Medium) TBCKgs/TBClbs (Tubeless) 3.88Kgs/8.55lbs (Tubeless)

Geometry & Sizing


Small Medium Large
(A) Reach 430 455 475
(B) Stack 622.26 622.26 631.25
(C) Effective Top Tube Length 565.11 590.11 609.18
(D) Seattube Length 380 410 440
(E) Effective Seattube Angle 77.75° 77.75° 78°
(F) Seattube Angle (Actual) 72° 72° 72.5°
(G) Saddle Height at Saddle Offset 650 700 750
(H) Saddle Offset at Saddle Height 139.22 154.74 165.77
(I) Headtube Length 100 100 110
(J) Headtube Angle 63.5° 63.5° 63.5°
(K) Chainstay Length 435 435 435
(L) Front Centre 768.03 793.03 817.42
(M) Wheelbase 1206.28 1231.28 1255.66
(N) Bottom Bracket Drop 25/10 25/10 25/10
(O) Bottom Bracket Height 350 350 350
(P) Stand Over Height 702.58 710.09 729.88
(Q) Fork Travel 180 180 180
(R) Trail 136.17 136.17 136.17
(S) Fork Offset 42 42 42
(T) Axle to Crown 594 594 594
(U) Maximum Seatpost Insert 200 225 258

*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 GIGA frames come with a 5 year frame warranty (Please visit for full info). Components will follow the component manufacturer warranty policy. 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   
  • Where can I buy touch up paint for my bike? 
  • Nukeproof have partnered up with paint specialist G-Paint to offer touch up paints for popular Nukeproof models. These can be bought direct from G-Paint's website HERE
Material: Ultra Strong T700/800 Monocoque Carbon Fibre
Fork Travel: 180mm
Axle to Crown: 594mm
Fork Offset: 44mm
Rear Travel: 180mm
Wheels Size: 29" Front / 27.5" Rear
Max Tyre Size: 2.6"
Recommended Shock Sag (Measured seated): 28% (18.2mm)
Shock Size: 205x65mm
Shock Hardware F: TRUNNION
Shock Hardware R: 30x8mm 
Sizing: S/M/L
Headtube: 44-56mm Tapered Semi-Integrated
Headset: ZS44-28.6 - T2 / ZS56/40 - B8
Bearings Required: 2x 6901-2RS MAX, 4x 6902-2RS MAX, 2x6804-2RS MAX, 2x 6900-2RS MAX
Seatpost: 31.6mm (Internal Routing for Dropper Seatpost)
Seat Clamp: 36.4mm
BB: Threaded 73mm BSA
Rear Hub: Boost 148x12mm
Rear Axle: SRAM UDH Maxle Stealth M12x1.0 180mm (Thread Length 13mm)
Chain Guide: ISCG05
Max Chainring Size 36T/34T Oval
Brake Mount: 200mm Direct Post
Protection: 3D Contoured Rubber Frame Protection for DT/SS/CS