Nukeproof Reactor 275 Pro GX Eagle 27.5" Mountain Bike 2020 - Trail Full Suspension MTB
- ShowProduct Information Introducing the all new Nukeproof Reactor: an old school name with a very new school look. Although ... read more
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Introducing the all new Nukeproof Reactor: an old school name with a very new school look. Although it takes its name from the original 1996 Nukeproof Reactor trail frame, a lot has changed in the last 23 years as it runs an all new trail focused platform.
From concept through to design, the Kinematics, the geometry and specification; the Reactor is designed from the ground up to be the ultimate aggressive trail bike. It is at home on technical climbs, but happiest when thrashing the most technical trails you can point it at.
To optimise the weight, strength and stiffness, the Reactor Carbon frame features a full UD woven carbon fibre frameset (Including chain and seat stays). It is available for 27.5” or 29” wheel sizes. These are two totally different, compromise free frames that were designed and developed at the same time. Each frame is simply tailored around each wheel size.
Speed or play: which do you value more? The manoeuvrability of 27.5” or the raw speed of a 29”?
All Reactor frames feature a “flip chip” to adjust the geometry from “Trail” to “Rail mode”.
Trail – As the name suggests, this setting is best suited for trail riding. It is for riders who get as much enjoyment from the climb as the descents.
Rail - The Rail setting turns the Reactor into a corner shredder, dropping the bottom bracket 6mm and slackening the head angle by half a degree. It is there to maximise the descending capabilities.
To ensure the bike could climb as well as it descends, we designed the 4 bar horst linkage to have higher levels of anti-squat for climbing gears but lower levels when you drop down the cassette. This means that the bike can behave itself on the climbs but when you get it up to speed, it turns into a trail hooligan. The combination of low anti-squat and progressive rate give ultimate small bump compliance (removes rough trail and root chatter) with good mid stroke support for cornering/pumping and end stroke progression for aggressive riding. Balanced anti-rise figures allow the Reactor some squat when braking hard, maintaining rider position and providing a good amount of pressure through the tyre to ensure traction. The Reactor is designed to reward the rider and ensure you get that stoke factor in on any ride.
Occasionally, without notice, manufacturers change product design and/or specifications.
|Frame:||Nukeproof Reactor 275 Carbon, 140mm Travel, UD woven Carbon Fibre front triangle/chain stays/seat stays, internal cable routing, custom tuned rear shock|
|Fork:||Rockshox Pike Select +150mm|
|Rear Shock:||Rockshox Super DeluxeSelect +|
|Headset:||Nukeproof, 44-56 IITS|
|Bars:||Nukeproof Horizon Alloy|
|Front Brake:||200mm Front|
|Rear Brake:||180mm Rear|
|Brake Lever:||Sram Guide RE|
|Rear Mech:||GX Eagle 12Sp|
|Shifters:||SRAM GX Eagle 12-Speed|
|Rims:||DT SWISS M1700|
|Rear Hub:||Boost 148x12mm|
|Front Tyre:||Maxxis Assegai 2.5WT/Minion DHRII 2.4WT|
|Rear Tyre:||Maxxis Minion DHRII 2.4WT|
|Seat Post:||Rockshox Reverb Stealth|
|Chainset:||GX Eagle Alloy Boost 32T DUB 6K 170mm|
|Bottom Bracket:||Threaded 73mm BSA|
|Chain:||SRAM GX Eagle 12-Speed|
|Cassette:||CS XG 1275 EAGLE 10-50T|
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Mountain Bike Sizing
XXS - 13"
XS - 15"
S - 16"
M - 18"
L - 19"
XL - 20"
XXL - 21"
XXXL - 22"
Read our bike size guide for more information on sizing.
Mountain bike size table
Mountain bike size (Inch)
4’8” – 5’1”
143 – 155 cm
13” – XXS
5’1” – 5’4”
155 – 163 cm
15” – XS
5’4” – 5’7”
163 – 170 cm
16” – S
5’7” – 5’10”
170 – 178 cm
18” – M
5’10” – 6’0”
178 – 183 cm
19” – L
6’0” – 6’3”
183 – 191 cm
20” – XL
6’3” – 6’5”
191 – 196 cm
21” – XXL
6’5” – 6’9”
196 – 205 cm
22” – XXXL
Please note, all size information is provided as a guide - if you're unsure or need any further assistance you can call us on 01792 799508 ... we're happy to help!
Full Sus MTB Guide
How do I apply for finance?
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Delivery & Guarantee
UK Delivery Information
We are committed to offering fast and free delivery, whether you're ordering bikes, accessories or clothing. Our standard delivery service is FREE in the UK, regardless of the size and on all orders over £20.
Please note that bulky products and bikes shipped to outlying UK regions are excluded from free shipping.
Please note that Pre-Order dates can sometimes change due to updated stock information.
Click here for more UK and international delivery information.
Returns & Warranty
It's easy to return a product with our 365 day, hassle free returns.
We will give you a full refund or exchange on any item that is returned to us unused/unfitted, in a resaleable condition and in its original packaging (where possible).
Please note: For hygiene reasons, we cannot accept returns of facemasks, undershorts or underwear if the item has been removed/unsealed from its original packaging.
If your item develops a fault or arrives damaged, please contact us first so we can resolve the issue for you as quickly as possible.
For more information please visit our Returns & Warranty page.
What's In The Box
What's In The Box
As cyclists ourselves, we know you will be keen to get out on your new bike as soon as possible. That's why we provide you with all the essential kit you need to get your shiny new bike rolling for the first time.
Most bikes don't come with pedals as standard so we include a set of basic pedals, free of charge with every bike we send out. We will also provide you with a pedal spanner to fit them and a 9-key trail tool, along with full instructions for setting your bike up out of the box. Each bike is sent out with a 16 point, quality control check sheet so you can be confident that your bike has been fully checked by our qualified mechanics.
- Basic setup instructions
- 16 point quality control checklist
- Free tredz multitool
- Free tred pedal spanner
- Free basic pedals
- Free drawstring kit bag
- Free bike insurance voucher
All these items are provided at no extra charge and are packed into a Tredz drawstring bag that doubles up as a handy backpack for carrying your ride essentials.
- Basic bike setup instructions
- Free ‘basic’ pedals
- Free Tredz pedal spanner
- Free Tredz 9-key trail tool
- Free Tredz drawstring bag
- Free 8 weeks insurance voucher
- 16 point, quality control check sheet
Read our bike setup guide.
- Tredz bikes are fully checked & tested by Cytech qualified mechanics
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