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2025 Nukeproof Mega Alloy Pro Eagle 90 Bike

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Nukeproof
Where To Buy
Free U.S. shipping on everything.
International shipping available. Some exclusions apply.
Free shipping on orders over $50 (continental U.S. only).
International shipping available. Some exclusions apply.
Free shipping on orders over $50 (contiguous U.S. only).
International shipping available. Some exclusions apply.
Free shipping on orders over $69 (continental U.S. only).
International shipping available. Some exclusions apply.

Specifications

Product
Nukeproof Mega Alloy Pro Eagle 90 Bike
Model Year
2025
Intended Use
Enduro / All-Mountain
Freeride / Bike Park
Rider
Unisex
Sizes and Geometry
SM 297
MD 297
LG 297
XL 290
XXL 290
View Full Geometry
Sizes Additional Info
• SM-LG have mixed ("Mullet") wheels: 29" front, 27.5" rear; XL/XXL have 29" wheel front/rear


• All specifications listed are with 170mm travel fork with 582mm axle-to-crown length and 42mm offset for a trail value of 132.33mm (all sizes)


• Bottom bracket drop on mixed-wheel sizes listed from front/rear axles respectively


• Seat tube angles given for saddle heights of 650mm (SM), 700mm (MD), and 750mm (LG), 800mm (XL), 850mm (XXL)
View Full Geometry
Wheel Size
29"
Mixed Wheel Size
Frame Material
Aluminum
Frame Material Details
Hydroformed 6061-T6 triple-butted alloy; 3D contoured rubber frame protection for seatstay, chainstay, and down tube
Rear Travel
165mm
Rear Shock
RockShox Vivid Select+ Air, bottom-out adjust, custom tune, trunnion mount, 230mm length x 62.5mm stroke
Fork
RockShox ZEB Select+, Charger 3.1 RC2 damper, DebonAir spring, 38mm stanchions, 44mm offset, Maxle Stealth thru-axle
Fork Travel
170mm
Head Tube Diameter
Tapered, 1.125" top, 1.5" bottom
Headset
Nukeproof, 44-56 IITS, ZS44/28.6 upper, ZS56/40 lower
Handlebar
Nukeproof Neutron V2, 25mm rise, 31.8mm clamp diameter
Width: 780mm (SM/MD), 800mm (LG-XXL)
Stem
Nukeproof Horizon, 45mm length, 31.8mm bar clamp
Grips
Nukeproof Neutron, single-clamp lock-on
Brakes
SRAM Maven Bronze, 4-piston, organic pads
Rotors: SRAM CenterLine 2.0, 200mm
Brake Levers
SRAM Maven Bronze Stealth, tool-free reach adjust
Drivetrain
1x
Shifters
SRAM Eagle 90 Transmission, 12-speed, MMX mounting bracket
Front Derailleur
None
Rear Derailleur
SRAM Eagle 90 Transmission, 12-speed
ISCG Tabs
ISCG05
Chainguide
Nukeproof upper slider with bashguard
Cranks
SRAM Eagle 90 Transmission Alloy DUB, 165mm length
Chainrings
SRAM Eagle 90 Transmission, 32 tooth
Bottom Bracket
SRAM DUB, 73mm English/BSA threaded
Pedals
None
Chain
SRAM GX Eagle Transmission, 12-speed, with PowerLock
Cassette
SRAM Eagle Transmission XS-1270, 12-speed, 10-52 tooth
Rims
Nukeproof Neutron V2 Alloy
Hubs
Nukeproof Neutron V2 wheelset, 15mm x 110mm (Boost) front, 12mm x 148mm (Boost) rear with HG driver
Spokes
Nukeproof Neutron V2 wheelset
Tires
Front: Schwalbe Magic Mary Evo, Super Gravity casing, Ultra Soft compound, TLE, 29" x 2.4"
Front: Schwalbe Tacky Chan Evo, Super Gravity casing, Soft compound, TLE, 2.4"
Saddle
Nukeproof Horizon Enduro, CrN/Ti rails
Seatpost
TranzX YS108 dropper, SRAM remote lever
Drop: 150mm (SM), 170mm (MD), 200mm (LG), 230mm (XL/XXL)
Seatpost Diameter
31.6mm
Seatpost Clamp
Nukeproof, single bolt, 34.9mm
Rear Dropout / Hub Dimensions
12mm x 148mm (Boost)
Max. Tire Size
2.6"
Bottle Cage Mounts
One inside front triangle, plus accessory mounts under top tube
Colors
Yellow
Warranty
Lifetime frame with registration, 2 years Nukeproof components
Weight
36 lb 9.5 oz (16600)
Miscellaneous
• V4 version
• Swinglink-driven four-bar Horst Link rear suspension design
• SM-LG have mixed ("Mullet") wheels: 29" front, 27.5" rear; XL/XXL have 29" wheel front/rear
• Internal cable routing
• SRAM UDH (Universal Derailleur Hanger)
• EU price: 4499 EUR
Price
N/A
More Info

Nukeproof Bikes: The Updated Carbon Giga, Mega, and Reactor (2023 press release)

Nukeproof website

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Where To Buy
Free U.S. shipping on everything.
International shipping available. Some exclusions apply.
Free shipping on orders over $50 (continental U.S. only).
International shipping available. Some exclusions apply.
Free shipping on orders over $50 (contiguous U.S. only).
International shipping available. Some exclusions apply.
Free shipping on orders over $69 (continental U.S. only).
International shipping available. Some exclusions apply.
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