Sonder Frontier NX Eagle

Pre Order

Sonder Frontier NX Eagle

Hardtail mountain bike

£1,099.00

Quick, lightweight 27.5+ modern mountain bike with SRAM NX Eagle 1x12 groupset, Rockshox Recon fork and Sonder Nova wheelset.

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This item is on preorder, you will receive the full order once this item is in stock

All Sonder bikes are built to order and can be customised. Our build time is currently 4 weeks.
You can make your selections on the next page.

Build your bike

Select your size and make any changes you want from the standard build. When you’re done, hit Add to Bag at the bottom of the page

  • Frame

    Size
    Please select your Size
    Colour
    Please select your Colour

    Configure your Frame

    size

    • Small

    • Medium

    • Large

    • X-Large

    colour

    • Black

    • Crayon

    • Forest

  • 1. components

    Handlebar
    Love Mud Aspect Riser 780mm
    Saddle
    Love Mud Abode
    Seatpost
    Love Mud Membar 31.6mm /

    Configure your 1. components

    Handlebar

    • Love Mud Aspect Riser 780mm

    • Love Mud Aspect Riser [OEM]

      In general riser bars tend to be wider than flat bars and may have slightly more flex to give a more forgiving ride. As you go into descents and your arms drop below your knees the additional height gained on your front end will help you take control of the steep descents.

      That said you can get all bar types in a range of widths and stiffnesses and front end height can be adjusted with spacers like our Love Mud Rings, so sometimes you just have to ignore the mumbojumbo and make your call on style and personal preference and there is nothing wrong with that.

    • Love Mud Confucius 760mm

      +£14.99

    • Love Mud Confucius

      Confucius says that you don't have to sacrifice what you love about your traditional riser bars just to get the flexibility of a hooped bar.

      We have taken our Aspect risers and evolved them in to a bar designed primarily for bikepacking. You won't have to adapt to a new hand position so you are not going to lose any control offroad and you can still get out of your saddle and power up the hills like a hero. If you do want to move your hands a bit a reduce the fatigue of a long ride the hoop extends out front giving a choice of further hand positions. Need some bar tape? Add a couple of rolls of Love Mud Reels for better comfort and grip.

      The bars have a slight riser but feel free to experiment and rotate them to your suiting. Keep them horizontal, or twist them up slightly to give yourself a streamlined TT style riding position to help you battle across a windblown Tierra del Fuego.

      Strength is not compromised as the main load bearing section of the bar is a single piece. Got gadgets? Confucius loves gadgets, and with the out-front hoop you can free up the bar around the stem. Simply attach your Garmin, 3000 lumen torches or mascots to the hoop and they will still be well within reach, maybe at an even better viewing angle and sit above your handle bar luggage.

      Take your bikepacking into the mountains; Confucius is a bar that gives you more control than a tradional swept back bar on technical terrain.

    • Love Mud Aspect Flat 720mm

      +£0.00

    • Love Mud Aspect Flat

      Flat bars help you keep the front end of your bike low, allowing you to get the weight over your front wheel when climbing and giving you more control in cornering.

      Our flats have a 5˚ rise so technically we should call them flatish, but if you really need them to be totally flat just rotate in the stem clamp!

    Saddle

    • Love Mud Abode

    • Love Mud Abode [OEM]

      High density foam padding over a plastic base provides comfort and longevity. A v-shaped split at the rear of the saddle allows flex as you are riding, increasing shock absorbancy and reducing pressure on the spot between your sit bones.

      Scooped up at the back with a slight rise towards the nose the longitudinal profile provides a cupped, craddled seating position, a timeless, proven design for distance on and off the road or climbing in the mountains.

      Stainless steel rails give 50 mm of forward and back adjustment to help you find your sweet spot.

      All our Sonder bikes come with Abode fitted as standard.

    • Love Mud Kura

      +£19.99

    • Love Mud Kura

      Adventure cycling is diverse; in the course of a single trip you can find km's of asphalt, traverse rutted grasslands, weave through thickly forest singletrack, climb loose gravel track or descend steep rocky trails.

      It is unlikely you are going to find a single saddle position for all of this terrain. With this in mind Kura has a flat longitudinal profile with a gentle lateral curvature to give an extended saddle area, allowing you to position yourself around the saddle as you move between road, downhill, and climbing.

      The honeycomb base reduces weight whilst still providing structure and support that adapts and flexes with your motion.

      Titanium rails giving 50 mm of forward and back adjustment to help you find your sweet spot. Titanium is more forgiving than steel so provides a little more comfort.

      Slightly wider than our Adobe saddle, it may provide additional comfort for riders with wider sit bones.

    • Brooks Cambium C17 Saddle / All Weather / Black

      +£49.99

    • Brooks Cambium C17 Saddle [OEM] / All Weather / Black
    • Brooks Cambium C17 Saddle / All Weather / Brown

      +£49.99

    • Brooks Cambium C17 Saddle [OEM] / All Weather / Brown

    Seatpost

    • Love Mud Membar 31.6mm /

    • Love Mud Membar [OEM]

      A seat post that is reliable and offers adjustability to help you find your ultimate riding position.

      Membar is all about adjustability. With a twist of your allen key the micro adjustment rail clamp allows the saddle angle to be fine tuned to your ideal position.

      Your saddle can be fitted with minimal faff thanks to a quick release action that allows the upper rail clamp to be released without removing the retaining bolt. The lower rail clamp is secured to the seat post which means that it will not fall in the mud when you are trying to fit your saddle.

    • X-Fusion Manic Drop Seatpost and Lever 31.8mm / 125mm

      +£119.99

    • X-Fusion Manic Drop Seatpost and Lever

      The X-Fusion Manic Dropper has been designed to work well across cross-country, trail, all mountain and enduro riding.

      It works on a simple design. Inside you’ll find a closed cartridge that is both sealed and designed to be easily removable from the rest of the post. Simple construction aside, the action of this post feels super-smooth and silky.

    • X-Fusion Manic Drop Seatpost and Lever 31.8mm / 150mm

      +£119.99

    • X-Fusion Manic Drop Seatpost and Lever

      The X-Fusion Manic Dropper has been designed to work well across cross-country, trail, all mountain and enduro riding.

      It works on a simple design. Inside you’ll find a closed cartridge that is both sealed and designed to be easily removable from the rest of the post. Simple construction aside, the action of this post feels super-smooth and silky.

    • Cane Creek Thudbuster / Short Travel / 31.6mm / Black

      +£99.99

    • Cane Creek Thudbuster / Short Travel / 31.6mm / Black

      The Thudbuster includes 50mm of travel to significantly diminish shocks and impacts from broken pavement, cobblestones or any other mixed surfaces.

      The Thudbuster supports riders up to 150kg and incorporates a tool-free, interchangeable elastomer system to quickly and easily adjust the seat post for a variety of rider weights. Installing and adjusting your saddle on the Thudbuster is easy with a single bolt design that secures the seat with a few turns of a standard allen key. 

  • 2. forks

    Forks
    Rockshox Recon RL Silver 100mm / 27.5

    Configure your 2. forks

    Forks

    • Rockshox Recon RL Silver 100mm / 27.5

    • Rockshox Recon RL Silver
    • Rockshox Reba RL / 100mm / 29

      +£169.99

    • Rockshox Reba RL / 100mm / 29
      Treat your bike to one of the most successful and capable RockShox forks of all times. The Reba uses some of the features and innovations from the latest SID. This fork combines classic XC performance with excellent tracking and a Motion Control™ damper to keep things under control when it gets a bit wild.
  • 3. wheels

    Wheels
    Sonder Nova 27.5+ Wheelset

    Configure your 3. wheels

    Wheels

    • Sonder Nova 27.5+ Wheelset Shimano

    • Sonder Nova 27.5+ [OEM] Wheelset

      Whether you're navigating rock gardens or tackling steep climbs, Novas will consistently give you a boost when the roads are rough and the terrain is tricky. Machine built for precision on Sonder’s sealed hubs.

      Our design team’s expertise along with the factories we use mean that we can accelerate trickle-down technology to this price point.

      Boost: wider, stiffer, tougher

      Nova's boost hub is wider than a standard hub; extra width between the flanges promotes a shallower spoke bracing angle to create a stronger, stiffer wheel. A wider hub also means a shorter chainstay, more mud clearance, and better tyre clearance.

      Wider rims mean tyres work better

      38mm lightweight aluminium rims make this wheelset ideal for rock gardens and technical terrain – you can run 2.4" - 3" tyres, which will plump up really nicely to give a broad contact patch for maximum traction and confidence.

      Built to take abuse

      Novas have sealed bearings that are easily serviceable without the need for specialist tools. Plain-gauge spokes have been chosen to keep the wheels super-strong, whether you’re landing big drops or loading your bike with luggage. And a steel free-hub body will take years of abuse. You could go round the world on these wheels.

    • Love Mud Hobo 29 Wheelset set up Tubeless

      +£149.99

    • Love Mud Hobo 29 Wheelset [OEM]
      Whether you're navigating rock gardens or tackling steep climbs; Hobo is always there to give you a boost when the roads are rough and the terrain is tricky. Machine built for precision and and individually hand checked for quality.
    • Love Mud Rumpus 27.5 Wheelset set up Tubeless

      +£149.99

    • Love Mud Rumpus 27.5 Wheelset [OEM]
      29er agility with fat bike comfort? We're struggling for reasons not to convert to the quick and playful 650b+.
  • 4. pedals

    Pedals
    No Pedals

    Configure your 4. pedals

    Pedals

    • No Pedals (none)

    • No Pedals
    • Shimano R540 Pedal / Black

      +£49.99

    • Shimano R540 Pedal / Black

      Using trickle-down technology from the pro tour, the Shimano R540 has great foot stability from a wide pedal platform and a light action for easier clip in and clip out operation. So no wasted movement, no flex and incredible pedalling efficiency.

      A low maintenance sealed cartridge axel unit means these will keep turning for years.

    • Shimano M540 Pedal / Black

      +£59.99

    • Shimano M540 Pedal / Black

      Compact dual sided SPD pedal with a Cro-Mo spindle and low maintenance sealed bearing cartridge axle. Uncomplicated with top class performance. Uses trickle-down technology from the M959 pedal. Packaging may vary, cleats included.

      Reliable, dependable, rugged.

  • 5. accessories

    Bottle cages
    No Bottle Cages
    Mudguards
    No Mudguards

    Configure your 5. accessories

    Bottle cages

    • No Bottle Cages (none)

    • No Bottle Cages
    • Love Mud Buzz Wire Single

      +£3.99

    • Love Mud Buzz Wire [OEM]

      The easiest and most convenient way to carry water on your bike, a classic cage design that holds your water bottle nice and snug.

      Buzz Wire is reassuringly durable, weighs just 65 grams and will carry your 500 or 750 ml water bottle with ease.

      If you are on expedition and looking for a way to pass a rest day make a bent wire loop and challenge someone to a game of Buzz Wire!

    • Love Mud Buzz Wire Pair

      +£6.99

    • Love Mud Buzz Wire [OEM]

      The easiest and most convenient way to carry water on your bike, a classic cage design that holds your water bottle nice and snug.

      Buzz Wire is reassuringly durable, weighs just 65 grams and will carry your 500 or 750 ml water bottle with ease.

      If you are on expedition and looking for a way to pass a rest day make a bent wire loop and challenge someone to a game of Buzz Wire!

    Mudguards

    • No Mudguards (none)

    • No Mudguards
    • Love Mud Fender Reg / Set

      +£4.99

    • Love Mud Fender

      Smashing through puddles and over marshy ground can be great fun, but getting a face full of bog water certainly isn’t. 

      You can avoid a wet face with a Love Mud Front Fender. These lightweight plastic mudguards don’t require any special fixings on your bike and can be strapped straight onto your forks.

      Keep the dirt out your eyes so you can focus on the important things, having a great ride.

      If you don’t have the muddy equivalent of a duck's back then the Love Mud Rear Fender is the perfect product for you.

      If you love blasting down muddy trails but don’t like that wet mucky streak up your back quite as much, then the the Love Mud Rear Fender might be exactly the thing you’re after. This lightweight plastic mud guard keeps splashes and spray off your back and doesn’t need any special fixings to attach to your bike. Simply fitted to your seat post and with a couple of ties under the saddle. You can pop it on your bike with minimal fuss and you’re ready for even the wettest ground.

Initial Price
£1,099.00
Extras
£0.00
Grand Price
£1,099.00
Go to Checkout
Description
At a glance
  • 6061 aluminium frame
  • Set up as an XC for speed or relaxed for comfort and performance
  • Rockshox Recon RL Silver / 100mm / 29 suspension forks
  • SRAM NX Eagle / 1 x 12 / 11-50
  • SRAM Level Hydraulic disk brakes
  • Bolt through boost 148mm rear spacing
  • Rear mudguard and pannier rack mounts
  • Sonder Nova 27.5+ Wheelset / Shimano
  • 650b+ and 29” wheel size compatible frame

Frontier is our multi-activity hardtail mountain bike. Ride hard at the trail centre, load it up for a midweek bikepacking trip, pocket your passport and continue around the world. With full rack mounts at the back, Frontier is an adaptable off-road explorer.

The geometry is for long day comfort but it’s no slouch.

The 6061 aluminium frame provides a durable and stiff chassis giving a responsive kick as you demand power when the slope steepens or enjoy feedback and precision through the corners.

Available as a fully rigid or with 100mm suspension fork. Set it up for XC race speed or for all day big mile comfort.

Tyre clearance gives you the choice of 27.5+ or 29in wheelsets. Bolt through 148mm boost rear spacing provides the benefit of stronger, stiffer and more efficient wheels.

Kudos
A First Look at the Sonder Frontier

It is a bike that will likely tick many boxes for anyone planning multi-day rides, without first returning home for their tea.

Read the full review here.

Bearbonesnorm
Active Traveller Review the Sonder Frontier

This cracking value and rock solid machine from Sonder is just crying out to be loaded up and taken to the horizon.

Read the full review here.

Andy McCandlish
CyclingLife Review the Sonder Frontier

Giving several centimeters of squish, their suspension-like characteristics help the Frontier float over rough terrain. With big handlebars, an upright position, and loads of stand-over, the Frontier is great for roistering about on, and could certainly serve as a regular mountain bike.

Read the full review here.

CyclingLife
Frontier Makes Red Bulls List of Best Bikepacking Bikes 2020

Arguably one of the best value bikes in this selection, Sonder’s Frontier Rigid is a 27.5” (or 29” compatible) mountain bike, armed with a wide-ranging SRAM SX Eagle 12-speed chainset. You’ll find plenty of mounting points for bottles, cages, racks and guards, including mounts on the rigid forks.

See the full list here.

Katherine Moore
Frontier - Tried and Tested

The Frontier might be considered a Jack of all trades but the clever bit is, it's able to master most of them.

Read the full review here.

Bearbonesnorm
Reviews
Geometry and Sizing

Sizing

It is important to get the right size bike, if the bike fits you well it will be faster, more comfortable and easier to handle. Generally we recommend:
Small
Riders between 5ft 2in and 5ft 7in
Medium
Riders between 5ft 6in and 5ft 10in
Large
Riders between 5ft 9in and 6ft 2in
X-Large
Riders 6ft 2in and over
Size Small Medium Large X-Large
ST - Seat tube 380 430 480 520
TT - Top tube 566 602 622 647
HT - Head tube 110 130 130 150
HA - Head angle 68 68 68 68
SA - Seat angle 73 73 73 73
CS - Chainstay 445 445 445 445
BB - BB drop 50 50 50 50
FO - Fork offset 51 51 51 51
WB - Wheelbase 1089 1127 1147 1174.5
SO - Stand over 764 793 825 853
RE - Reach 390 420 440 460
SK - Stack 566 580 594 613
Build Spec
Build Frontier NX Eagle Recon 27.5+
Frameset
Frame: Sonder Frontier Frame
Fork: Rockshox Recon RL Silver / 100mm / 29
Headset: FSA Orbit C-40-ACB Headset / 7.8mm Spacer
Seat Clamp: Love Mud Silent Partner / 34.9mm
Group Set
Brake Front: SRAM Level / Direct / 850mm
Brake Rear: SRAM Level / Direct / 1800mm
Rotor Front: Avid Centreline Rotor / 180mm
Rotor Rear: Avid Centreline Rotor / 160mm
Rear Mech: SRAM NX Eagle Rear Derailleur / 12 / Long
Rear Shifter: SRAM NX Eagle Trigger Shifter
Chainset: SRAM NX Eagle Crankset DUB / 170mm / 32
Bottom Bracket: SRAM Bottom Bracket / DUB
Chain: SRAM NX Eagle Chain / 118 Links
Cassette: SRAM PG1230 Cassette / 12 / 11-50
Finishing Kit
Stem: Love Mud Piskie Stem / 31.8mm / 55mm
Seatpost: Love Mud Membar / 31.6mm / 400mm
Saddle: Love Mud Abode / Black
Tape/Grips: Love Mud Clutch / Black
Handlebar: Love Mud Aspect Riser
Wheelset
Wheels: Sonder Nova 27.5+ Wheelset / Shimano
Front Tyre: WTB Ranger / Comp / 27.5 / 2.8
Rear Tyre: WTB Ranger / Comp / 27.5 / 2.8
Tubes: WTB Inner Tube / 27.5 / 2.5
Weight
Frame: S: 1.84kg; M: 1.9kg; L: 1.98kg; XL: 2.03kg
Built: S: TBC; M: TBC; L: TBC; XL: TBC
Pedals not included with full builds
FAQs
TBC
Frame Spec
Frame Weight: S: 1.84kg; M: 1.9kg; L: 1.98kg; XL: 2.03kg
Rigid Fork Weight - uncut: 1kg 
6061 Aluminium frame
Optimised for rigid or 100mm suspension forks
Internal cable routing through downtube
Bolt Through Boost 148mm rear spacing for wheel strength and optimal chainline
Fork built around Bolt Through Boost 110mm spacing
Threaded 73mm BSA BB shell for no-creak assembly
Chainstay mounted disc brake for clean lines and damage protection
Triple bottle cage mount on downtube
Use a seat clamp with integrated mounts for pannier rack compatibility 
Clearance for 3 inch 27.5+ or 2.5 inch 29er tyres
Reverb Stealth port
EN 14766 compliant
Features

Aluminium Frame

The 6061 aluminium tubing is durable, light, low maintenance and stiff.

Internal Cable Routing

Clean lines and tidy cables thanks to internal downtube routing. Frontier also incorporates routing for a dropper seat post.

Wide Tyre Clearance

Extra width between the chainstays gives you the choice of running 27.5+ tyres up to 3 inches or 29 inch tyres up to 2.5 inches.

Boost Axle Width

The Frontier frame is designed around bolt through Boost 148mm rear spacing providing the benefit of stronger, stiffer and more efficient wheels. Seatstay mounted disc brake for clean lines and damage protection.

Triple Bottle Cage Mounts

Fit 2 bottles in their standard location or run your downtube bottle cage a little lower to clear a bikepacking frame bag. Plus there’s an extra bottle cage mount under the downtube.

Pannier Rack Mount

​Seat clamp mounted pannier attachment points make fitting a rack easier and keep pannier rack rails free from twisting and warping.