Name: Cortex NX Eagle Short travel 29er
Brand: Sonder
Price: 2999.0 EUR
Availability: InStock
Rating: 4.00 (1 reviews)

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Cortex NX Eagle

Short travel 29er

€2.999

or from £550/mo

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Fast and agile short travel full suspension 29er mountain bike with SRAM NX Eagle 1x12 groupset, RockShox Revelation RC fork and Deluxe Select+ rear shock.

Buy Now. Be Riding in 5 days.

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Size
- Small
- Medium
- Large
- X-Large
Colour
- Battleship
- Khaki

Size:
Colour:

Customize

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Every Sonder bike is built to order so tell us exactly how you want it. Make any changes you want from the standard build and when you're done, just hit “Add to Bag” at the bottom of the page.

Handlebar

Sonder Aspect Riser 780mm

+€0,00

Sonder Aspect Riser 780mm

+€0,00

sonder aspect carbon flat handlebar flatbar

Sonder Aspect Carbon Riser 780mm

~~+€119,99~~ +€94,99

Sonder Scope Handlebar 760mm

~~+€47,49~~ +€37,49

Saddle

Sonder Abode Black / 138

+€0,00

Sonder Kura

+€47,49

Sonder Zone 152 / Black

~~+€42,49~~ +€34,99

Seatpost

X-Fusion Manic Drop Seatpost and Lever 31.6mm / 125mm

+€0,00

X-Fusion Manic Drop Seatpost and Lever 31.6mm / 150mm

+€0,00

X-Fusion Manic Drop Seatpost and Lever 31.6mm / 170mm

+€0,00

RockShox Reverb / 150mm Drop / 31.6 x 440mm 1

+€0,00

RockShox Reverb / 125mm Drop / 31.6 x 390mm 1

+€0,00

Stem

Sonder Piskie 31.8mm / 35mm

+€0,00

Sonder Piskie 31.8mm / 45mm

+€0,00

Sonder Talo 35

~~+€52,49~~ +€47,49

Sonder Talo 45mm

~~+€52,49~~ +€47,49

Forks

Rockshox Revelation RC / 29 / 130mm 29 / 130mm

+€0,00

Shock

Rockshox Deluxe Select+ / 190x45

+€0,00

Cane Creek DBair IL 190 / 45

+€139,99

Tubes

WTB Inner Tube / 29 / 2.4 - 2.8 Black

+€0,00

Tubeless Tyre Upgrade and Setup

+€52,49

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Bottle Cages

No Bottle Cages (none)

+€0,00

Sonder Blade Black

~~+€19,99~~ +€17,49

Sonder Blade Black / Pair

+€0,00

Sonder Buzz Wire Pair

~~+€14,99~~ +€12,49

Ti Wire Bottle Cage Single

~~+€52,49~~ +€47,49

Ti Wire Bottle Cage Pair

~~+€94,99~~ +€74,99

Lights

No Lights (none)

+€0,00

Phase 400

+€0,00

Phase 550

~~+€29,99~~ +€24,99

Phase 850

~~+€42,49~~ +€34,99

Ariel

~~+€52,49~~ +€47,49

Lights Accessories

No Bike Light Accessories (none)

+€0,00

Garmin Outfront Mount / Black

~~+€29,99~~ +€24,99

Helmet Mount Black

~~+€9,99~~ +€8,99

Mudguards

No Mudguards (none)

+€0,00

Sonder Defender Mudguards 45mm

+€0,00

Sonder Defender Mudguards 55mm

+€0,00

Sonder Fender Front MTB

~~+€8,99~~ +€6,99

Pedals

No Pedals (none)

+€0,00

Sonder Torque Black

~~+€47,49~~ +€42,49

Sonder Reko

~~+€69,99~~ +€57,49

Sonder Distortion

~~+€84,99~~ +€69,99

Sonder Slingshot Black

~~+€94,99~~ +€74,99

Initial Price

Cortex NX Eagle / Select a frame...

€2.999,00

Extras

€0,00

Total Price

€2.999,00

Buy Now. Be Riding in 5 days.

Fast and agile, Cortex is a trail riding, down-country, all terrain mountain bike for seriously epic days out. It comes alive on long technical descents with 120 mm rear travel, big wheels and a stiff responsive frame.

With bang up to date geometry, Cortex is confidence inspiring with a playful character. Stand up and mash on the pedals out of turns, manual sections of trail and pop off tree stumps, rocks and roots. Smash out short and loose technical climbs, flat out descents and tight techy singletrack sections. The harder you push the bigger you grin.

At a glance

SRAM NX Eagle 12-speed groupset
RockShox Revelation RC fork
Rockshox Deluxe Select+ shock
Sonder Nova 29" UK made wheelset

Cortex frameset is hand-welded from 6061 double butted aluminium with a tapered ovalised top-tube and large section down-tube for a stiff chassis with just enough compliance to get you out of trouble. 66 head angle, 74.5 seat tube angle, 40 mm bottom bracket drop and a 465 mm reach (size large). Cortex’s dialed in geometry and 2.6" tyre clearance offers a comfortable and efficient climbing position for big miles and a stable, spirited platform for smashing up descents.

Features

Up to Date Trail Bike Geometry

Trail bike Agility with Enduro bike stability, the Cortex has a confidence inspiring, stable and forgiving ride.

Metric Shock Standard

Designed around metric shock sizing standard, with lengthened shocks and shorter strokes that increase bushing overlap for more smooth, supple, sensitive and reactive suspension action.

Horst link suspension design

The tried and tested Horst link suspension design allows the suspension to stay active when braking.

Tyre Clearance

Clearance for up to 29 x 2.6in tyres.

Internal Cable Routing

Internal routing in the front triangle for clean lines.

Build Spec

Frameset
Frame:	Cortex Frame \| 6061 aluminium
Fork:	RockShox Revelation RC \| 130mm (travel)
Shock:	RockShox Deluxe Select+ \| 190 x 45
Headset:	FSA Orbit C-40-ACB

Groupset
Shifters:	SRAM NX Eagle Trigger \| 1x \| 12-speed
Brakes:	SRAM Guide T \| Hydraulic \| Post mount
Rotors:	SRAM Centerline \| 180mm (front), 160mm (rear) \| 6-bolt
Rear derailleur:	SRAM NX Eagle \| Long cage \| 12-speed
Chainset:	SRAM NX Eagle DUB \| 170mm \| 32t
Cassette:	SRAM PG1230 \| 11-50t \| 12-speed
Chain:	SRAM NX Eagle \| 12-speed
Bottom bracket:	SRAM DUB \| BSA \| 73mm

Wheelset
Wheels:	Sonder Nova 29" UK Made
Front tyre:	Goodyear Newton MTF Trail Tubeless \| 29 x 2.5" \| Black
Rear tyre:	Goodyear Newton MTR Trail Tubeless \| 29 x 2.4" \| Black
Tubes:	WTB \| 29 x 2.4-2.8"

Finishing kit
Handlebars:	Sonder Aspect Riser \| 780mm
Stem:	Sonder Piskie
Seatpost:	X-Fusion Manic \| 31.6mm
Saddle:	Sonder Abode
Grips:	Sonder Clutch \| Black

Weight
Frame:	XS: TBC S: 2.80kg; M: 2.90kg; L: 3.0kg; XL: 3.08kg;
Build:	XS: TBC S: TBC M: TBC L: TBC XL: TBC

Pedals not included with full builds
Specifications are subject to change without notice

Geometry and Sizing

Sizing

It is important to get the right size bike, if the bike fits it will be faster, more comfortable, and easier to handle. You can also take into consideration the standover height to ensure you pick a bike that will be a good fit. If you measure your inside leg and ensure there is a minimum of an inch from the toptube to your crotch this will give you enough seatpost adjustment to find your optimum saddle height.

Generally we recommend:
Small: Riders between 5ft 2in and 5ft 7in (157-170cm)
Medium: Riders between 5ft 6in and 5ft 10in (167-177cm)
Large: Riders between 5ft 9in and 6ft 2in (175-187cm)
X-Large: Riders of 6ft 2in + (187cm)

Transmitter

Size	Small	Medium	Large	X-Large
ST - Seat tube	405	425	465	485
TT - Top tube	575.6	597.3	625.6	649
HT - Head tube	100	105	115	125
HA - Head angle	66	66	66	66
SA - Seat angle	74.5	74.5	74.5	74.5
CS - Chainstay	445	445	445	445
BB - BB drop	52	52	52	52
FO - Fork offset	46	46	46	46
WB - Wheelbase	1169.1	1191.2	1220.2	1244.3
SO - Stand over	749.7	768.4	782.6	796.6
RE - Reach	420	440	465	485
SK - Stack	601.7	606.3	615.4	624.6

Frame Spec

Alloy 29er short travel full suspension trail bike

Weight: S: 2.8kg; M: 2.9kg; L: 3.0kg; XL: 3.08kg (without shock)
Hydroformed and custom butted alloy frame tubing
Internal cable routing
Rear Shock: Rockshox Deluxe Select+ 190 x 45mm
Horst link suspension layout
120mm rear travel; 130mm fork travel
Clearance for up to 29 x 2.6" wide tyres
73mm BSA threaded bracket shell
148 x 12mm rear thru-axle
31.6mm seat tube, 34.9mm clamp
Headset: IS42/28.6 \| IS52/40

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