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Alchemy 10 Year Logo

Arktos 29

Carbon // 29" // 140MM rear // 160MM front // Starting at $2999
 

Is the bike you want out of stock? We have experienced high demand, but you can reserve the bike you want at the current sale price if you contact us before July 4th. No deposits required to hold bikes. alchemy@alchemybicycles.com
Full model line up here.

Featuring Alchemy’s exclusive Sine full-suspension system
The Arktos features famed designer David Earle’s patented dual-linkage suspension platform called “Sine”. The name “Sine” derives from the shock rate, which resembles a sine wave when graphed. The design creates suspension that is regressive through the first part of the travel to absorb small bumps and provide climbing traction, is progressive in the middle to avoid wallowing on big hits or in hard, fast corners, and is regressive again in the last 15 percent of the stroke so the bike can use all of its rear-wheel travel. It’s efficient, responsive, and provides downhill capabilities unparalleled in today’s crop of modern trail bikes.

It will truly transform your ride.

Frameset Features

Exclusive Patented Sine Suspension System

The Arktos is a one-of-a-kind, do-it-all full-suspension bike designed to climb and descend with the same aplomb. The Arktos features a patented dual-linkage platform called the Sine Suspension, which was designed by suspension guru David Earle. The Sine name is derived from the way the shock rate, when graphed, resembles a sine wave. With Sine, there is regression through the first part of the travel to absorb small bumps and provide climbing traction, progression in the middle of the stroke to avoid wallowing on big hits or in hard, fast corners, and then slight regression again at end stroke to enable full use of rear wheel travel. Sine is also designed to minimize chainstay growth to improve pedaling efficiency and keep the suspension active under braking.

Learn About Sine Suspension

Fully Triangulated Rear Swingarm

Modern trail bikes today are being ridden on terrain that only a DH bike would have tackled a few years ago. As a result, the requirements for frame stiffness are increasing every year. Luckily if you are riding an Arktos, you are riding one of the laterally stiffest bikes ever produced, and one of the big reasons for this is the full triangulated rear swingarm. The Arktos by design is made to handle all you can throw at it.

The Details

They say the devil is in the details, and there’s not doubt we focused on the minutia with the Arktos 29. The bike features details like internal cable routing and a direct mount chain guide, as well as every bike features Fox Factory suspension. The rear shock has been specially tuned for Alchemy to provide the best in pedaling efficiency and downhill performance and all of the bikes are using stiff and light Fox 36 forks.

 

What People Are Saying About Alchemy

"As of today, I'm officially a huge fan of Alchemy. The craftsmanship, quality, attention to detail, etc. of their custom bicycle frames seems to just be on another level." -Stephen
“I ordered a Arktos ST and I couldn’t be happier with it. The bike rides great. The fork and shock combination make the bike climb as well as any bike I’ve ridden. Fit and finish are as good as all the top high end brands I’ve looked at.” -Casey
"I have two Arktos’. Just took the new 29 on its maiden ride and I have to say I was more than surprised... it climbs like a goat and goes downhill like that same goat being chase by a lion. Mmmm...wow!" -Brian

Geometry

  S M L XL
160mm Fork | 44mm Offset Fork
Seat Tube Length 410 450 483 518
Effective Top Tube 580 610 630 665
Head Tube Length 100 110 125 140
Head Tube Angle 65.5 65.5 65.5 65.5
Frame Stack 620 630 644 658
Frame Reach 418 444 452 483
Seat Tube Angle 75 75 75 75
Chain Stay Length 438.5 438.5 438.5 438.5
Bottom Bracket Drop 34 34 34 34
Bottom Bracket Height 343 343 343 343
Wheelbase 1167 1185 1211 1248
Standover 792 794 802 830

Pricing and specifications subject to change at any time without notice.

Frame Geometry
 
Arktos 29 Frame Sizing
S 5'1 - 5'5"
M 5'5" - 5'9"
L 5'9" - 6'1"
XL 6'1" - 6'5"

Specs

SRAM NX Eagle SRAM NX Eagle+ SRAM GX Eagle Shimano XT 12 Spd SRAM X01 Eagle Shimano XTR
Price $4,899 $3,899 $5,199 $4,199 $5,399 $4,399 $6,099 $5,099 $6,699 $5,699 $9,499 $8,499
Fork RockShox Pike Select RC 160mm 15mm DVO Diamond D1 29 160mm 15mm 44mm Fox 36 29 Factory Grip 2 160mm Boost 15mm Fox 36 29 Factory Grip 2 160mm Boost 15mm Fox 36 Factory Grip 2 160mm Boost 15mm Fox 36 Factory Grip 2 160mm Boost 15mm
Shock Fox DPX2 Factory Kashima EVOL LV 3-Position DVO Topaz T3 3-Postion Adjust Fox DPX2 Factory Kashima EVOL LV 3-Position Fox DPX2 Factory Kashima EVOL LV 3-Position Fox DPX2 Factory Kashima EVOL LV 3-Position Fox DPX2 Factory Kashima EVOL LV 3-Position
Handlebar Race Face Aeffect R 35×780 Race Face Aeffect R 35×780 Race Face Aeffect R 35×780 Race Face Aeffect R 35×780 Race Face Turbine R 35×780 ENVE M6 Carbon 31.8×780
Stem Race Face Aeffect R 50mm Race Face Aeffect R 50mm Race Face Aeffect R 50mm Race Face Aeffect R 50mm Race Face Turbine R 50mm ENVE M6 55mm 31.8mm
Seat Post X-Fusion Manic 150mm X-Fusion Manic 150mm X-Fusion Manic 150mm X-Fusion Manic 150mm Fox Factory Transfer 125mm/150mm Fox Factory 125mm/150mm
Grips DMR Deathgrip Thin DMR Deathgrip Thin DMR Deathgrip Thin DMR Deathgrip Thin DMR Deathgrip Thin DMR Deathgrip Thin
Headset Top Cane Creek 40-Series IS42 Cane Creek 40-Series IS42 Cane Creek 40-Series IS42 Cane Creek 40-Series IS42 Cane Creek 40-Series IS42 Cane Creek 40-Series IS42
Headset Bottom Cane Creek 40-Series IS52 Cane Creek 40-Series IS52 Cane Creek 40-Series IS52 Cane Creek 40-Series IS52 Cane Creek 40-Series IS52 Cane Creek 40-Series IS52
Spacer Cane Creek 40-Series 5MM Spacer Cane Creek 40-Series 5MM Spacer Cane Creek 40-Series 5MM Spacer Cane Creek 40-Series 5MM Spacer Cane Creek 40-Series 5MM Spacer Cane Creek 40-Series 5MM Spacer
Saddle WTB Volt WTB Volt WTB Volt Race WTB Volt Race WTB Volt Race WTB Volt Race
Shifters SRAM SL NX Eagle SRAM SL NX Eagle SRAM GX Eagle Shimano XT 12 Speed SRAM X01 Eagle Shimano XTR 12 Speed
Rear Derailleur SRAM SL NX Eagle SRAM SL NX Eagle SRAM GX Eagle Shimano XT 12-speed Shadow+ SRAM X01 Eagle Shimano XTR 12-SPEED
Cassette SRAM NX Eagle 11-50T SRAM NX Eagle 11-50T SRAM GX 1275 Eagle 10-50T Shimano XT 12-Speed 10-51t SRAM XG 1275 EAGLE 10-50T Shimano XTR 12-Speed 11-51t
Cranks SRAM Descendant 175mm SRAM Descendant 175mm SRAM GX EAGLE 175mm Shimano XT 170mm SRAM X01 EAGLE 175mm Shimano XTR 175mm
Bottom Bracket SRAM DUB BSA SB+ SRAM DUB BSA SB+ SRAM DUB BSA SB+ Shimano XT Threaded SRAM DUB BSA SB+ Shimano XTR Threaded
Chain SRAM NX Eagle SRAM NX Eagle SRAM GX Eagle Shimano XT 12 Speed SRAM GX Eagle Shimano XTR 12 Speed
Brakes SRAM Guide T SRAM Guide T Shimano XT Shimano XT Shimano XT Shimano XTR Trail
Rotors SRAM 180mm Centerline SRAM 180mm Centerline Shimano 180mm Center Lock Shimano 180mm Center Lock Shimano 180mm Center Lock Shimano XTR M900 180mm Center Lock
Front Wheel DT Swiss M 1700 SPLINE 29 15/110mm DT Swiss M 1700 SPLINE 29 15/110mm DT Swiss M 1700 SPLINE 29 15/110mm DT Swiss M 1700 SPLINE 29 15/110mm DT Swiss M 1700 SPLINE 29 15/110mm ENVE M630 or M730 15/110mm Industry 9
Rear Wheel DT Swiss M1700 SPLINE 29 12/157mm Boost+ DT Swiss M1700 SPLINE 29 12/157mm Boost+ DT Swiss M1700 SPLINE 29 12/157mm Boost+ DT Swiss M1700 SPLINE 29 12/157mm Boost+ DT Swiss M1700 SPLINE 29 12/157mm Boost+ ENVE M630 or M730 12/157mm Industry 9
Tires Maxxis Minion DHF 29×2.3, Maxxis Minion DHR 29×2.3 Maxxis Minion DHF 29×2.3, Maxxis Minion DHR 29×2.3 Maxxis Minion DHF 29×2.5, Maxxis Minion DHR 29×2.4 Maxxis Minion DHF 29×2.5, Maxxis Minion DHR 29×2.4 Maxxis Minion DHF 29×2.5, Maxxis Minion DHR 29×2.4 Maxxis Minion DHF 29×2.5, Maxxis Minion DHR 29×2.4

Pricing and specifications subject to change at any time without notice.

Free Shipping on All Bikes

Not everyone can visit Alchemy, so we made things easy. When you buy a bike from us, you get free shipping. Alchemy has also teamed up with Beeline to provide delivery to a bike shop located near you.

2 Weeks Risk-Free

Purchasing your dream ride is a substantial investment, so here’s our promise: If you are not 100% satisfied with your new Alchemy Bicycle, you have 2 weeks from date of receipt to return it.

No Questions Returns

If at the end of 2 weeks you are not 100% satisfied with your new bike, call us to arrange a full refund or credit toward another Alchemy.