• Frontier SLX in Jet Black
  • Frontier SLX
  • Frontier Deore in Chilli
  • Frontier NX Eagle in Spruce
  • Frontier SLX
  • Frontier SLX
  • Frontier SLX
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    • BLACK FRIDAY

    Frontier SLX

    Multi-activity trail bike

    £1,249 £1,449

    or from £22 /month V12 logo

    1

    Select Options

    2

    Customize

    3

    Select Accessories

    Reset

    Quick, lightweight 29er modern mountain bike with Shimano SLX 1x12 groupset, Rockshox Recon Silver RL fork and Sonder Nova wheelset.
    Buy Now. Deliveries from 20 December.

    Need help choosing a bike or technical advice?

    • Open a Live Chat
    • Pop into a store 7 days a week
    • Call a Sonder Customer Hero on 01773 417006
    • Email us at support@alpkit.com
    • Find out how much you can save on the cycle to work scheme visit cyclescheme.co.uk

    1

    Select Options

    Edit

    • Size
    • Colour

    • Size:

    • Colour:

      • Customise and buy now. Deliveries from 20th April

    2

    Customize

    Edit

    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 [OEM]
    Sonder Aspect Riser 780mm

    +£0.00

    Sonder Horizon Flat [OEM]
    Sonder Horizon Flat 720mm

    +£0.00

    Sonder Aspect Riser [OEM]
    Sonder Aspect Riser 780mm

    +£0.00

    sonder horizon carbon flatcar handlebar
    Sonder Horizon Carbon Flat Black

    +£79.99 +£49.99

    sonder aspect carbon flat handlebar flatbar
    Sonder Aspect Carbon Riser 780mm

    +£79.99 +£49.99

    Sonder Confucius
    Sonder Confucius

    +£34.99 +£29.99

    sonder scope handlebars
    Sonder Scope Handlebar 760mm

    +£39.99 +£32.49

    sonder scope cargo handlebars
    Sonder Scope Cargo Handlebar 760mm

    +£74.99 +£59.99

    Saddle

    Sonder Abode [OEM]
    Sonder Abode Black / 138

    +£0.00

    Sonder Abode [OEM]
    Sonder Abode Black / 158

    +£0.00

    Sonder Zone [OEM]
    Sonder Zone 133 / Black

    +£34.99 +£29.99

    Sonder Zone [OEM]
    Sonder Zone 152 / Black

    +£34.99 +£29.99

    Sonder Kura [OEM]
    Sonder Kura

    +£47.99 +£39.99

    Brooks B17 Saddle [OEM] / Black
    Brooks B17 Saddle / Black Black

    +£134.99 +£109.99

    Seatpost

    Sonder Seatpost [OEM] 31.6
    Sonder Seatpost 31.6 400mm

    +£0.00

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

    +£119.99

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

    +£119.99

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

    +£119.99

    sonder ingot 31.6mm layback titanium seatpost - closed
    Sonder Ingot 31.6mm Layback

    +£149.99 +£119.99

    Cane Creek eeSilk+ [OEM]
    Cane Creek eeSilk+ 31.6mm / Alloy

    +£229.99 +£184.99

    Stem

    Sonder Piskie [OEM]
    Sonder Piskie 31.8mm / 35mm

    +£0.00

    Sonder Piskie [OEM]
    Sonder Piskie 31.8mm / 45mm

    +£0.00

    sonder talo bike stem
    Sonder Talo 35

    +£44.99 +£37.49

    sonder talo bike stem
    Sonder Talo 45mm

    +£44.99 +£37.49

    Forks

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

    +£0.00

    Rockshox Reba RL [OEM] / 100mm / 29
    Rockshox Reba RL / 100mm / 29

    +£299.99

    Rockshox Sid SL Ultimate [OEM] / 29 / 100mm
    Rockshox Sid SL Ultimate / 29 / 100mm

    +£574.99

    Tubes

    WTB [OEM] Inner Tube / 27.5 / 2.4 - 2.8
    WTB Inner Tube / 27.5 / 2.4 - 2.8 Black

    +£0.00

    Tubeless Tyre Upgrade and Setup
    Tubeless Tyre Upgrade and Setup

    +£44.99

    Wheels

    Sonder Nova 27.5 [OEM] Wheelset / UK Build
    Sonder Nova 27.5 Wheelset / UK Build Microspline

    +£0.00

    Sonder Nova XC [OEM] Wheelset / UK Build
    Sonder Nova XC Wheelset / UK Build Microspline

    +£0.00

    Sonder Alpha 27.5 [OEM] Wheelset / UK Build
    Sonder Alpha 27.5 Wheelset / UK Build Microspline

    +£329.99 +£169.99

    Sonder Alpha 29 XC [OEM] Wheelset / UK Build
    Sonder Alpha 29 XC Wheelset / UK Build Microspline

    +£329.99 +£169.99

    Sonder Alpha 29 XC [OEM] Wheelset / UK Build
    Sonder Alpha 29 XC Wheelset / UK Build HG

    +£0.00

      3

      Select Accessories

      Edit

      Bottle Cages

      No Bottle Cages
      No Bottle Cages (none)

      +£0.00

      Sonder Buzz Wire
      Sonder Buzz Wire Single

      +£5.49 +£4.99

      Sonder Buzz Wire
      Sonder Buzz Wire Pair

      +£10.99 +£8.99

      love mud side blade side loading bottle cage left
      Sonder Sideblade Left Entry / Black

      +£6.99 +£5.99

      love mud side blade side loading bottle cage right
      Sonder Sideblade Right Entry / Black

      +£6.99 +£5.99

      love mud side blade side loading bottle cage left and right
      Sonder Sideblade PAIR / Black

      +£10.99 +£8.99

      Sonder Blade
      Sonder Blade Black

      +£17.99 +£14.99

      Sonder Blade
      Sonder Blade Black / Pair

      +£29.99 +£24.99

      Sonder Ti Wire Bottle Cage
      Sonder Ti Wire Bottle Cage Single

      +£44.99 +£37.49

      Sonder Ti Wire Bottle Cage
      Sonder Ti Wire Bottle Cage Pair

      +£79.99 +£64.99

      Front Lights

      No Front Light
      No Front Light (none)

      +£0.00

      Tau Front
      Tau Front Front

      +£16.99 +£14.99

      Phase 550
      Phase 550

      +£24.99 +£19.99

      Phase 850
      Phase 850

      +£34.99 +£29.99

      Ariel
      Ariel Ariel

      +£44.99 +£37.49

      alpkit hadron bike light
      Hadron

      +£99.99 +£79.99

      Rear Lights

      No Rear Light
      No Rear Light (none)

      +£0.00

      Tau Rear
      Tau Rear Rear

      +£16.99 +£14.99

      alpkit halo rear bike light
      Halo Light Black

      +£19.99 +£17.49

      Lights Accessories

      No Bike Light Accessories
      No Bike Light Accessories (none)

      +£0.00

      alpkit helmet mount bike light gps
      Helmet Mount Black

      +£7.99 +£6.99

      Mudguards

      No Mudguards
      No Mudguards (none)

      +£0.00

      sonder fender
      Sonder Fender Front MTB

      +£6.99 +£5.99

      Pedals

      No Pedals
      No Pedals (none)

      +£0.00

      Sonder Torque
      Sonder Torque Black

      +£39.99 +£32.49

      reko clipless bike pedal
      Sonder Reko

      +£49.99 +£39.99

      distortion flat mountain bike pedal
      Sonder Distortion

      +£59.99 +£49.99

      sonder slingshot clipless pedal
      Sonder Slingshot Black

      +£79.99 +£64.99

      sonder Jekyll clipless and flat hybrid pedal
      Sonder Jekyll Black

      +£79.99 +£64.99

        Initial Price

        Frontier SLX / Select a frame...
        £1,249.00

        Extras

        £0.00

        Total Price

        £1,249.00
        Buy Now. Deliveries from 20 December.

        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.

        At a glance

        • Shimano SLX M7100 12-speed groupset
        • Rockshox Recon Silver RL fork
        • Sonder Nova 27.5 / 29" XC wheelset
        • 6061 aluminium frame

        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.

        Why SLX?

        Shimano drivetrains are designed, engineered and manufactured to work as complete drivetrain systems. Shimano's new microspline hub means that you can run a 10 tooth cassette for a huge gear range. The new EV shifters and brakes provide loads of adjustment to get the perfect position as well as a rock-solid feel on the bars. And the 4-pot brakes provide consistent and reliable stopping power.

        Features

        Tuned for all-round capability

        Built for a balance of cross country efficiency and trail centre capability. A favourite with bikepackers looking for all-day comfort and performance.

        Light and clean

        Clean lines thanks to internal cable routing. Frontier also incorporates routing for a dropper seat post. The 6061 aluminium tubing is durable, light, low maintenance and stiff.

        Wider tyres. More grip.

        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.

        Made for stronger wheels

        Designed around bolt through Boost 148mm rear spacing providing the benefit of stronger, stiffer and more efficient wheels.

        Wilderness trail features

        Chainstay mounted disc brakes. And triple bottle mounts.

        Build Spec
        Frameset
        Frame:Frontier Frame | 6061 aluminium
        Fork:RockShox Recon Silver RL | 100mm (travel)
        Headset:FSA Orbit C-40-ACB
        Groupset
        Shifters:Shimano SLX M7100 | 1x | 12-speed
        Brakes:Shimano SLX M7120 | Hydraulic | Post mount
        Rotors:Shimano RT66 | 180mm (front), 160mm (rear) | 6-bolt
        Rear derailleur:Shimano SLX M7100 | Long cage | 12-speed
        Chainset:Shimano SLX M7100 | 170mm | 32t
        Cassette:Shimano CS-M7100 | 10-51t | 12-speed
        Chain:Shimano CN-M7100 | 12-speed
        Bottom bracket:Shimano MT801 | BSA
        Wheelset
        Wheels:Sonder Nova 27.5" or 29 XC
        Tyres:Goodyear Escape Tubeless | Black | 27.5 X 2.6
        Tubes:WTB | 27.5 x 2.4-2.8"
        Finishing kit
        Handlebars:Sonder Aspect Riser | 780mm
        Stem:Sonder Piskie
        Seatpost:Sonder Seatpost | 31.6mm
        Saddle:Sonder Abode
        Grips:Sonder Clutch | Black
        Weight
        Frame:S: 1.8kg; M: 1.85kg; L: 1.95kg; XL: 2.05kg;
        Build: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 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
        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

        Your actual build date will depend on additional components you specify and from receipt of full payment. For any queries contact our Sonder team on 01773 417006.

        • Frontier SLX in Jet Black
        • Frontier SLX
        • Frontier Deore in Chilli
        • Frontier NX Eagle in Spruce
        • Frontier SLX
        • Frontier SLX
        • Frontier SLX