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Arktos 29

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.

EXPLORE

// 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 both front and rear. 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.

Geometry

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Arktos 29 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

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

Frame Geometry
 
Height Pant Inseam (inches) Size
5 ft. 1 in. – 5 ft. 4 in. 30 Small
5 ft. 5 in. – 5 ft. 8 in. 32 Medium
5 ft. 9 in. – 5 ft. 11 in. 34 large
≥ 6 ft. 36 Xlarge
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

Fork Fox 36 29 Factory Kashima 160mm Boost 15mm
Shock Fox DPX2 Factory Kashima EVOL LV 3-Position Adjust 7.875×2.25, 10×22 Hardware
Handlebar ENVE M6 780mm 7.5 Degree 31.8mm
Stem ENVE M6 55mm 31.8mm
Seat Post Fox Transfer Factory w Lever
Grips Ergon GA 20 Black
Headset Top Cane Creek 40-Series IS42 Short Cover – Top – Black
Headset Bottom Cane Creek 40-Series IS52 – Bottom – Black
Spacer Cane Creek 40-Series 5MM Spacer – Black
Saddle WTB Volt Race 142×165
Shifters Shimano XTR M9100 12 Speed
Rear Derailleur Shimano XTR M9120, XTR SGS, 12-SPEED
Cassette Shimano XTR M9100 12-Speed 11-51t
Cranks Shimano XTR FC-M9100-1 32 T 175mm
Bottom Bracket Shimano XTR Threaded
Chain Shimano XTR 12 Speed
Brakes Shimano XTR M9120 Trail Hydraulic
Rotors Shimano XTR M900 180mm Center Lock Ice Tech Rotor
Front Wheel ENVE M630 15/110mm
Rear Wheel ENVE M630 12/157 mm TA DT 240 Superboost Shimano Driver
Tires Maxxis Minion DHF 29×2.5 DC EXO TR, Maxxis Minion DHR 29×2.4 DC EXO TR
Fork Fox 36 29 Factory Kashima 160mm Boost 15mm
Shock Fox DPX2 Factory Kashima EVOL LV 3-Position Adjust 7.875×2.25, 10×22 Hardware
Handlebar Race Face Turbine R 780mm, 20mm, 35mm
Stem Race Face Turbine R 50mm, 35mm, 0 degree
Seat Post Fox Transfer Factory w Lever
Grips Ergon GA 20 Black
Headset Top Cane Creek 40-Series IS42 Short Cover – Top – Black
Headset Bottom Cane Creek 40-Series IS52 – Bottom – Black
Spacer Cane Creek 40-Series 5MM Spacer – Black
Saddle WTB Volt Race 142×165
Shifters Shimano XT SL‑M8000‑Rapidfire Plus
Rear Derailleur Shimano XT 11-speed Rear RD-M8000 GS Shadow+
Cassette Shimano XT M8000 11-Speed 11-46t
Cranks Shimano XT FC-M8000-1 32 T 175mm
Bottom Bracket Shimano XT Threaded
Chain Shimano XT 11 Speed
Brakes Shimano XT M8000 Hydraulic
Rotors Shimano 180mm Center Lock Ice Tech Rotor
Front Wheel DT Swiss M 1700 SPLINE 29 – 30 mm CL 15/110mm
Rear Wheel DT Swiss M 1700 SPLINE 29 – 30 mm CL 12/157 mm TA Boost Plus Shimano Driver
Tires Maxxis Minion DHF 29×2.5 DC EXO TR, Maxxis Minion DHR 29×2.4 DC EXO TR
Fork Fox 36 29 Factory Kashima 160mm Boost 15mm
Shock Fox DPX2 Factory Kashima EVOL LV 3-Position Adjust 7.875×2.25, 10×22 Hardware
Handlebar Race Face Turbine R 780mm, 20mm, 35mm
Stem Race Face Turbine R 50mm, 35mm, 0 degree
Seat Post Fox Transfer Factory w Lever
Grips Ergon GA 20 Black
Headset Top Cane Creek 40-Series IS42 Short Cover – Top – Black
Headset Bottom Cane Creek 40-Series IS52 – Bottom – Black
Spacer Cane Creek 40-Series 5MM Spacer – Black
Saddle WTB Volt Race 142×165
Shifters SRAM X01 Eagle SL X01 EAGLE TRIGGER BLK
Rear Derailleur SRAM X01 Eagle RD X01 EAGLE BLK
Cassette SRAM XG 1275 EAGLE 10-50T
Cranks SRAM X01 EAGLE FC X01 EAGLE SB+ DUB 175 BLK 32
Bottom Bracket SRAM DUB BSA MTB73 SB+
Chain SRAM GX Eagle 12 Speed
Brakes Shimano XT M8000 Hydraulic
Rotors SShimano 180mm Center Lock Ice Tech Rotor
Front Wheel DT Swiss M 1700 SPLINE 29 – 30 mm CL 15/110mm
Rear Wheel DT Swiss M 1700 SPLINE 29 – 30 mm CL 12/157 mm TA Boost Plus
Tires Maxxis Minion DHF 29×2.5 DC EXO TR, Maxxis Minion DHR 29×2.4 DC EXO TR
Fork Fox 36 29 Factory Kashima 160mm Boost 15mm
Shock Fox DPX2 Factory Kashima EVOL LV 3-Position Adjust 7.875×2.25, 10×22 Hardware
Handlebar Race Face Aeffect R 35×780 20mm Rise
Stem Race Face Aeffect R 50mm 0 Degree
Seat Post X-Fusion Manic 150mm 31.6mm with Trigger Remote
Grips Ergon GA 20 Black
Headset Top Cane Creek 40-Series IS42 Short Cover – Top – Black
Headset Bottom Cane Creek 40-Series IS52 – Bottom – Black
Spacer Cane Creek 40-Series 5MM Spacer – Black
Saddle WTB Volt Race 142×165
Shifters SRAM GX Eagle
Rear Derailleur SRAM GX Eagle
Cassette SRAM GX 1275 Eagle 10-50T
Cranks SRAM GX EAGLE FC X01 EAGLE SB+ DUB 175 BLK 32
Bottom Bracket SRAM BB DUB BSA MTB73 SB+
Chain SRAM GX Eagle 12 SPD
Brakes Shimano XT M8000 Hydraulic
Rotors Shimano 180mm Center Lock Ice Tech Rotor
Front Wheel DT Swiss M 1700 SPLINE 29 – 30 mm CL 15/110mm
Rear Wheel DT Swiss M 1700 SPLINE 29 – 30 mm CL 12/157 mm TA Boost Plus
Tires Maxxis Minion DHF 29×2.5 DC EXO TR, Maxxis Minion DHR 29×2.4 DC EXO TR

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