Ride Your Favorite Trail All Year Long
27.5 x 4.5
Tire Clearance
Adventure's best friend.
Conquer any terrain with the Kings Peak's 27.5 x 4.5 tire clearance. The larger wheels and tires provide a stable and capable ride, allowing you to roll smoothly over loose and soft terrain and have maximum grip on rough and rocky trails.
Full Carbon for the Full Experience
The Kings Peak features a full carbon frame and fork which is not only lightweight but also provides the strength and durability needed to conquer various terrain. Our MonoForm frame construction sets the foundation for a high-performance fat bike designed to handle the toughest conditions.
Adventure-Focused Frame Geometry
Experience the King Peak's progressive frame geometry for the most demanding adventures. The stable 67-degree head tube angle enhances control, offering a confident ride over diverse landscapes. Coupled with a comfortable 75-degree seat tube angle that helps you pedal efficiently and powerfully. The low standover height accommodates riders of all sizes, and the design allows for longer dropper seat posts.
Built to navigate the untamed
with ease and exhilaration.
Take your Gear and Tools Along for the Ride
Gear up for any adventure with the Kings Peak's impressive 19 mounting points. Carry all your essential gear, tools, and water effortlessly. This feature ensures that you're well-equipped for extended rides, bikepacking trips, or any adventure that demands extra storage.
All-Terrain, All-Season Riding
Adaptability is at the core of the Kings Peak design. Whether you're navigating snowy trails in winter or tackling rocky paths in summer, it’s built for all seasons. The low standover height, long dropper post insertion, and suspension fork compatibility make it your ideal companion for year-round riding, offering a seamless blend of comfort and performance.
We Paid Attention to Detail So You Can Pay Attention to the Ride
Enjoy hassle-free maintenance with custom-mounted chainstays to reduce chain slap noise and the UDH (Universal Derailleur Hanger) system, ensuring easy serviceability no matter where you are. The Kings Peak is designed to accommodate various drivetrains, including Transmission, providing flexibility and customization options for your preferred riding style.
Tested in the Harshest Conditions
Rest assured in the reliability of the Kings Peak, rigorously tested in the harshest conditions and is Chris Burkard’s weapon of choice when riding across Iceland's unforgiving terrain. From winter crossings to summer adventures, the Kings Peak has proven its mettle, demonstrating durability, performance, and the ability to handle the toughest challenges.
Go ahead, take it for a spin.
Lightweight & Powerful
Kings Peak represents nearly two decades of research and development, coupled with extensive real-world testing.
"The Ari Kings Peak is an impressively well-rounded fat bike with a frame design that makes it a versatile option for both snow and adventure riding alike."
"From the ordering process that utilizes the bike builder on their website to the solid professional pre-build to the in-field testing, the Ari Kings Peak has been totally solid."
"The geometry was developed from the ground up for more stability, maneuverability, and adaptability, plus there are loads of new features that improve on the previous version."
"There are more mounts, and everything is more svelte, from the fork to the rear dropouts. The previous Kings Peak was a good bike, but this one looks massively improved."
"The geometry is ... revolutionary."
"As you go to purchase your next bike, I encourage you to give Ari a look."
"With new buyers, the brand will go through an extensive fit process before sending the bike so that it’s ready to rock."
"I realized how deeply in touch Ari is with what riders want and what the industry needs."
Kings Peak
40.7764° N, 110.3728° W
Save up to 40% Buying Direct
Bigger savings and perfect fit.
We sell directly to you, the rider. This gives you unique advantages like getting your Kings Peak custom fit to your body measurements, big savings on cost, and direct communication with us.
Lifetime Warranty
A warranty that lasts a lifetime.
We tested the Kings Peak 130% above industry standards. We want you to ride with the peace of mind knowing that this bike performs at an elite level, always. Your bike comes backed with a Lifetime Warranty. Ride it on your own trials for 30 days and if it’s not the best bike you’ve ridden, you can return it.
Geometry
Units
| S | M | L | XL | |
|---|---|---|---|---|
| Top Tube | 590 | 614 | 637 | 660 |
| Seat Tube | 400 | 440 | 460 | 480 |
| Chainstay | 450 | 450 | 450 | 450 |
| Head Angle | 67° | 67° | 67° | 67° |
| Seat Angle | 75° | 75° | 75° | 75° |
| Head Tube | 90 | 100 | 120 | 130 |
| Bottom Bracket Height | 325 | 325 | 325 | 325 |
| Bottom Bracket Drop | 65 | 65 | 65 | 65 |
| Wheelbase | 1156.9 | 1184.1 | 1208.3 | 1232.6 |
| Fork Offset | 51 | 51 | 51 | 51 |
| Standover Height | 700 | 750 | 770 | 780 |
| Stack | 598 | 615 | 625 | 635 |
| Reach | 430 | 450 | 470 | 490 |
What’s my frame size?
Your height will determine a general recommended frame size. Occasionally, based on other body measurements, you may feel more comfortable on a different size. We recommend completing the 23-Point Custom Setup when completing your order.
Recommend a frame size for meBuild Specs
Each Ari bike is built with the best components in a given category so you get the most bang for the buck. Each model has different build specs to choose from usually ranging in good, better, best order.
Comparison TableBuild Level
Specifications
| Kings Peak Comp | Kings Peak Elite | Kings Peak Frameset |
|---|---|---|
|
price $2,499 $2,899 |
price $3,099 $3,499 |
price $1,599 $1,699 |
|
frame Ari Racing Design Fat King Carbon V3, full carbon construction, 197x12mm rear axle, 100mm english thread BB, tapered headtube, internal cable routing |
frame Ari Racing Design Fat King Carbon V3, full carbon construction, 197x12mm rear axle, 100mm english thread BB, tapered headtube, internal cable routing |
frame Ari Racing Design Fat King Carbon V3, full carbon construction, 197x12mm rear axle, 100mm english thread BB, tapered headtube, internal cable routing |
|
fork Ari Racing Design Kings Peak Carbon V3, tapered, 150x15mm thru axle |
fork Ari Racing Design Kings Peak Carbon V3, tapered, 150x15mm thru axle |
fork Ari Racing Design Kings Peak Carbon V3, tapered, 150x15mm thru axle |
|
rear shock N/A |
rear shock N/A |
rear shock N/A |
|
drivetrain Shimano Deore M6200, 12-Speed |
drivetrain Shimano XT M8200 Mechanical, 12-Speed |
drivetrain N/A |
|
wheels WTB ST i76 76mm, 32 hole, 27.5 |
wheels WTB ST i76 76mm, 32 hole, 27.5 |
wheels N/A |
|
brakes Tektro HD-M280 Hydraulic 180/160mm Rotors |
brakes TRP EVO Expert, 180/160mm Rotors |
brakes N/A |
|
sizes S,M,L,XL |
sizes S,M,L,XL |
sizes S,M,L,XL |
|
headset FSA integrated sealed cartridge bearing, tapered, No. 57E |
headset FSA integrated sealed cartridge bearing, tapered, No. 57E |
headset FSA integrated sealed cartridge bearing, tapered, No. 57E |
|
shifters Shimano Deore M6200, 12-Speed |
shifters Shimano XT M8200, 12-Speed |
shifters N/A |
|
front derailleur N/A |
front derailleur N/A |
front derailleur N/A |
|
rear derailleur Shimano Deore M7200, 12-Speed |
rear derailleur Shimano XT M8200, 12-Speed |
rear derailleur N/A |
|
cassette Shimano CS-M6200, 10-51T, 12-Speed |
cassette Shimano XT M8200, 10-51T, 12-Speed |
cassette N/A |
|
crank Raceface Ride, for Fat Bike |
crank Raceface Turbine, for Fat Bike |
crank N/A |
|
chainings Raceface DM 30t |
chainings Raceface DM 30t |
chainings N/A |
|
bottom bracket Raceface X-Type, 100mm |
bottom bracket Raceface BSA, 100mm |
bottom bracket N/A |
|
chain Shimano CN-M6100 12-Speed |
chain Shimano XT M8100, 12-Speed |
chain N/A |
|
handlebars Ari Racing Design Alloy Riser Bar, 31.8mm x 780mm, 25mm Rise (customized sizing through Ari Custom Setup) |
handlebars Ari Racing Design Alloy Riser Bar, 31.8mm x 780mm, 25mm Rise (customized sizing through Ari Custom Setup) |
handlebars N/A |
|
stem Ari Alloy, 31.8mm (Size varies with Ari Custom Setup) |
stem Ari Alloy, 31.8mm (Size varies with Ari Custom Setup) |
stem N/A |
|
tape/grips ODI Elite Pro |
tape/grips ODI Elite Pro |
tape/grips N/A |
|
saddle WTB Volt Comp |
saddle WTB Volt Comp |
saddle N/A |
|
seatpost TranzX JD-YSI63FL1 w/ Travel Adj. 30mm, Dropper- customized sizing through Ari Custom Setup |
seatpost TranzX JD-YSI63FL1 w/ Travel Adj. 30mm, Dropper- customized sizing through Ari Custom Setup |
seatpost N/A |
|
pedals Available Separately |
pedals Available Separately |
pedals Available Separately |
|
rims WTB ST i76 76mm, 32 hole, 27.5 |
rims WTB ST i76 76mm, 32 hole, 27.5 |
rims N/A |
|
hubs Sun Ringlé SRC 197x12, 150x15, Microspline |
hubs Sun Ringlé SRC 197x12, 150x15, XD |
hubs N/A |
|
spokes Sha-Dar 14G, Stainless |
spokes Sha-Dar 14G, Stainless |
spokes N/A |
|
tires WTB Bailiff TCS Light/High Grip, 27.5x4.5 Tubeless Ready |
tires WTB Bailiff TCS Light/High Grip, 27.5x4.5 Tubeless Ready |
tires N/A |
|
tubes 27.5x4.5 Presta Valve for Fat Bike, tubeless setup available after adding bike to cart |
tubes 27.5x4.5 Presta Valve for Fat Bike, tubeless setup available after adding bike to cart |
tubes N/A |
|
extras N/A |
extras N/A |
extras N/A |
Specifications
build
Comp
price
$2,499
$2,899
frame
Ari Racing Design Fat King Carbon V3, full carbon construction, 197x12mm rear axle, 100mm english thread BB, tapered headtube, internal cable routing
fork
Ari Racing Design Kings Peak Carbon V3, tapered, 150x15mm thru axle
rear shock
N/A
drivetrain
Shimano Deore M6200, 12-Speed
wheels
WTB ST i76 76mm, 32 hole, 27.5
brakes
Tektro HD-M280 Hydraulic 180/160mm Rotors
sizes
S,M,L,XL
headset
FSA integrated sealed cartridge bearing, tapered, No. 57E
shifters
Shimano Deore M6200, 12-Speed
front derailleur
N/A
rear derailleur
Shimano Deore M7200, 12-Speed
cassette
Shimano CS-M6200, 10-51T, 12-Speed
crank
Raceface Ride, for Fat Bike
chainings
Raceface DM 30t
bottom bracket
Raceface X-Type, 100mm
chain
Shimano CN-M6100 12-Speed
handlebars
Ari Racing Design Alloy Riser Bar, 31.8mm x 780mm, 25mm Rise (customized sizing through Ari Custom Setup)
stem
Ari Alloy, 31.8mm (Size varies with Ari Custom Setup)
tape/grips
ODI Elite Pro
saddle
WTB Volt Comp
seatpost
TranzX JD-YSI63FL1 w/ Travel Adj. 30mm, Dropper- customized sizing through Ari Custom Setup
pedals
Available Separately
rims
WTB ST i76 76mm, 32 hole, 27.5
hubs
Sun Ringlé SRC 197x12, 150x15, Microspline
spokes
Sha-Dar 14G, Stainless
tires
WTB Bailiff TCS Light/High Grip, 27.5x4.5 Tubeless Ready
tubes
27.5x4.5 Presta Valve for Fat Bike, tubeless setup available after adding bike to cart
extras
N/A
*Specs are subject to change. Any substitutions will be comparable or better.
Spec Comparison
Common Questions*
Do you offer financing?
Yes, at checkout there are several options available for financing.
Who is this bike for?
A rider who enjoys the Kings Peak is someone who values adventure and versatility in their cycling experiences, combined with a love for cutting-edge technology and materials. They are likely drawn to the unique capabilities that fat tire bikes offer, such as the ability to traverse a wide range of terrains that might be challenging or inaccessible with standard mountain bikes, including snow, sand, mud, and loose gravel.
How long will it take to arrive?
Estimated lead times are listed under each model's size in the bike builder. Times may vary a little based on current conditions, frame size, color, and availability.
What is the BB spacing and standard?
100mm english thread BSA
How are the cables routed?
The cables are routed internally through the frame from ports located near the headtube. The Fezzari Clean-catch cable guides hold the cables tight for a rattle free ride.
What size wheels and tires fit? 27.5 and 26?
The max wheel and tire sizes are 26x5.0” and 27.5x4.5
What is the headset standard of the Kings Peak?
ZS44/ZS56
27.5 wheels for a fat bike? Why was that chosen?
The contact patch of a 27.5x4.5” tire is larger than the contact patch of a 26x4.8” tire. This is due to the longer contact patch that happens with the larger diameter 27.5” tire. A longer contact patch will float better as well as roll faster. This helps when riding in snow, sand, or other soft trails conditions. The larger diameter helps you get over obstacles easier too.
What is the hub spacing (front and rear)? What are the axle dimensions?
197x12 rear hub spacing and 150x15 front hub spacing. Rear axle dimensions: TA12/224mm/M12xP1.0x20mm. Front axle dimensions: TA15/198mm/M15xP1.5x20mm.
What cranks can I use? What is the chainline and q-factor?
We recommend SRAM Fat 5 cranksets that feature a 76.5mm chainline and 208.5mm q-factor. The RaceFace Ride Cinch crankset will also work in the 190mm spindle configuration.
Can I run a tubeless setup? Is that a good thing in the cold? Will my sealant freeze?
Fat bikes can be run tubeless. It is a good idea to check with sealant manufacturers for their recommendations. We use Stan’s NoTubes sealant with great success in the cold.
What about service?
You can work directly with us, one of our recommended shops, or work through your local shop.
What is the guarantee?
It comes with a 30 Day Love it or Return it Guarantee.
How will it arrive?
All Ari bikes go through our Custom Setup process, making sure the bike is fit and tuned specifically to you. They are test-ridden before delivery. If your bike is shipped to you, it’s still tuned and ready to ride and requires just a few minutes of assembly.
What is the warranty?
Each frame comes with a Lifetime Warranty. Ari branded frames come with a transferable warranty as well.
How does transferable warranty on Ari bikes work?
Ari branded frames come with a transferable frame warranty available to the second owner. The second owner can receive a one-year frame warranty from the date they purchase the bike from the original owner. Warranty only transfers once. All Ari bikes must have the transfer documented from the original owner to the new owner here in order to qualify for a transferable warranty.
What kind of bike is this?
The Kings Peak is Ari’s analog carbon fat bike. It uses 27.5 x 4.5-inch tire clearance, 19 mounting points, and all-season geometry for snow, sand, and adventure riding without a motor. Complete bikes start at $1,599 for the Kings Peak Comp build.
How does Kings Peak compare to other Ari bikes?
Kings Peak is Ari’s analog carbon fat bike. Explorer Peak is the carbon pedal-assist e-fat bike for the same snow, sand, and adventure terrain with a motor. See Explorer Peak.
How should I choose a size when buying online?
Use Ari Custom Setup and Ari will fit the bike from your body measurements. There is also a size guide in the bike builder, and the support team can help before you order. Details: Custom Fit.
What does the starting price include?
Complete bikes start at $1,599 for the Kings Peak Comp build. The listed price is the complete bike at that build level; the bike builder shows the selected options, lead time, and any upgrades before checkout.
What assembly is required when the bike arrives?
Bikes ship pre-tuned, test-ridden, and about 95% assembled. Basic at-home assembly remains, and technicians are available for help. See Support.
What do shipping, warranty, and returns actually involve?
Current terms live on the policy pages, not in this summary. Read Shipping, Warranty, Love it or Return it, and Return Policy before you buy. Outlet bikes follow different return rules.
