Stock due indicated by the dates below. Please allow circa 10 days after this date for build and despatch. Our bike guru Neil will contact you after you place your order to confirm build times and keep you updated with your order.
|Chilli||In Stock||In Stock||In Stock||In Stock|
|Nemo||In Stock||In Stock||In Stock||In Stock|
|Stirling Moss||In Stock||In Stock||In Stock||In Stock|
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Please allow 10 working days for your bike to be built, checked and despatched.
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|We act as a credit broker and not a lender and can introduce you to Close Brothers Retail Finance. Terms and Conditions apply. Finance subject to status. Applicants must be 18 or over and resident in the UK. Finance provided by Close Brothers Retail Finance, a trading style of Close Brothers Limited – a subsidiary of Close Brothers Group Plc. Registered Office: 10 Crown Place, London, EC2A 4FT.|
At a glance
- For the long distance adventurer
- 6061 aluminium frame and rigid Boost fork
- Relaxed riding position for comfort and performance
- Hydraulic disk brakes
- QR Boost 141mm rear spacing
- Rear mudguard and pannier rack mounts
- 650b+ and 29” wheel size compatible
About this build
We have put together this build as a great value entry point to greater bikepacking adventures. 29” wheelset for long distance comfort, SRAMs proven NX1 groupset and rigid forks for efficient riding with realtime feedback.
The days of more gears are better are long gone. SRAMs NX1 drivetrain delivers a wide range of gear choices in a 1 x 11 package engineered for simplicity and durability. Don’t worry about dropping a chainring up front, the 1 x 11 gearing gives a 2.9 - 0.8 ratio (85.2 - 22.3 gear inches with 2.4” tyre). That’s plenty of range to tackle steep technical climbs, select your optimum pace on long slogs and open up on the descents.
Your ride will be smoothed out with Love Mud Hobo 29er rims. Now pretty standard for cross-country bike setups 29er wheels help maintain momentum when rolling and increase tyre contact with the trail. Built around the new Boost hub standard they are ideally suited to tyres ranging in width from 2.2” up to around 2.6”. The rims can also be setup tubeless with the use of some 34 mm tape, a pair of valves and a compatible tyre. Super reliable, easy to work on, and can be easily adapted to fit QR or bolt through setups. They are an ideal choice for setting your bike up for x-country rides, improving stability and control over sketchy terrain.
With Sonder Frontier rigid forks up front you are in full control of your destiny. Fully rigid riders live by the sword and die by the sword, they know how to work the trail, get the most out of themselves and the simplicity of their setup. Spacing allows a 100 mm QR Boost hub and 3 bosses down each side of the forks provide universal attachment points for bottle cages, pumps or specialist mounts like Anything cages.
The complete adventure package for soulful riders.
Frontier is our new aluminium jack of all trades - ride it hard around the trail centre, load it up and sneak off for a midweek bikepacking trip through mid-Wales, pocket your passport and continue around the world.
The geometry is relaxed for long day comfort but its 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.
Frontier can be tailored to ride how you want it to ride. If fully rigid is not for you the geometry and head angle allows capacity to take a 100 mm fork. So you can have it set up for XC race speed or all day plod comfort and put in the miles. Big tyre clearance gives you the choice of 27.5+ or 29in wheelsets. QR Boost 141 mm rear spacing provide the benefit of stronger, stiffer and more efficient wheels.
Optimised for 1x drivetrains, Frontier is available in NX1 builds with rigid or suspension forks.
Frontier excels both loaded and unloaded, absorbing every surface you ride - you decide how you want to pack for your adventure. With full rack mounts at the back and multiple boss mounts on the fork Frontier is an adaptable offroad explorer. Responsive when loaded up in the modern lightweight bikepacking style of travel, it is more than happy for a set of panniers to be thrown over it.
Wherever you are in the world - squeezing in an afterwork loop or halfway through an adventure of a lifetime; Frontier eats up long distance trails with style and comfort with the shameless enthusiasm of a trail centre hardtail.
Internal cable routing
Clean lines and tidy cables thanks to internal routing. Frontier also incorporates routing for a dropper seat post.
The 6061 aluminium tubing is durable, light, low maintenance and stiff.
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 2.4 inches.
Boost axle width
The Frontier frame is designed around QR Boost 141 mm rear spacing providing the benefit of stronger, stiffer and more efficient wheels. Seatstay mounted disc brake for clean lines and damage protection.
Responsive when loaded - Frontier is more than happy to shoulder a pannier.
|Frame Key Features|
|6061 Aluminium frame|
|Optimised for rigid or 100 mm suspension forks|
|Internal cable routing|
|QR Boost 141 rear spacing for wheel strength and optimal chainline|
|Fork built around QR Boost 110 mm spacing|
|Threaded 73 mm BSA BB shell for no-creak assembly|
|Chainstay mounted disc brake for clean lines and damage protection|
|Adventure cage compatible downtube mount|
|Full rack mounts and multiple boss mounts on rigid fork|
|Clearance for 3 inch 650b+ or 2.5 inch 29er tyres|
|Reverb Stealth port|
|EN 14766 compliant|
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:
- 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 2 and over
|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||435||435||435||435|
|BB - BB drop||50||50||50||50|
|FO - Fork offset||51||51||51||51|
|WB - Wheelbase||1089||1127||1147||1174.5|
|SO - Stand over|
|RE - Reach||390||420||440||460|
|SK - Stack|
|Build||SRAM NX1, 1 x 11|
|Frame||Sonder Frontier Frame|
|Fork||Sonder Frontier Fork|
|Headset||Love Mud Rumour, Integrated Sealed Bearing, Tapered|
|Seat clamp||Love Mud Vice, 34.9 mm|
|Brake Front||SRAM Level DIR 800mm|
|Brake Rear||SRAM Level DIR 1400mm|
|Rotor Rear||Avid Centreline 160 mm|
|Rotor Front||Avid Centreline 180 mm|
|Rear mech||SRAM NX1 Rear Derailleur 1x11 Long Cage|
|Shifter Rear||SRAM NX1 11sp|
|Chainset||SRAM NX1 Chainset 1 x Xsync 32T|
|Bottom Bracket||SRAM GXP|
|Chain||SRAM PC1110 Chain 118 Links|
|Cassette||SRAM PG-1130 11sp|
|Stem||Love Mud Piskie, 31.8 mm|
|Seatpost||Love Mud Membar, 27.2 mm|
|Saddle||Love Mud Abode|
|Tape/Grips||Love Mud Grabby|
|Handlebar||Love Mud Aspect Riser, 740 mm|
|Wheels||Love Mud Hobo Wheelset|
|Tyres||WWTB Trail Boss 29 x 2.4|
|Tubes||WTB Inner Tube Presta 29, 2.8-3.00|
|Built (kg)||S: TBC, M: TBC, L: TBC|
- What are builds and groupsets?
- Can I set up Sonder Frontier to run as a single speed
- How much does international shipping for Sonder Bikes and Love Mud Wheels cost?
- Why have Alpkit designed their own bikes?
- Are Sonder available outside the UK?
- Try Before Your Buy - Sonder Demo Bikes
Alpine Bond Warranty
Our titanium frames are handmade and come with a 10 year frame warranty. Our hand welded 6061-T6 alloy triple butted frames come with a 5 year manufacturing defect warranty. All our bikes are built, checked and signed off by Cytech trained mechanics before being despatched to you in a custom-made bike box.