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Arktos 29ST

Featuring Alchemy’s exclusive Sine full-suspension system

The Arktos 29ST (for short travel) is the younger brother of the Arktos 29, and like younger siblings, it’s shorter, quicker and more playful than its elders. Where the Arktos 29 was designed to crush fast, open, super techy EWS tracks, the Arktos 29ST is capable of hitting the same bone-tingling descents, but adds a little fun in the mix. It turns quicker and changes directions faster on those tight switchbacks, but still has that slack geometry to keep it stable at speeds. It’s the everyday bike for hitting every track.

Frameset Features

// Exclusive Patented Sine Suspension System

The backbone of the Arktos 29 ST is the Sine Suspension System. Sine is what makes the bike climb like a mountain goat and descend like a DH rig. The Sine name derives 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. In the middle of the travel, there is progression to avoid wallowing on big hits or in hard, fast corners. At the end, there is slight regression again to enable full use of rear wheel travel.

EXPLORE

The Stiffness You Need… Delivered

The backbone of the Arktos 29 ST is the Sine Suspension System. Sine is what makes the bike climb like a mountain goat and descend like a DH rig. The Sine name derives 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. In the middle of the travel, there is progression to avoid wallowing on big hits or in hard, fast corners. At the end, there is slight regression again to enable full use of rear wheel travel.

// A Short Travel Trail Slayer

It’s quick, it’s playful, it’s capable…it’s everything you need in a modern-geometry, short-travel 29er. Oh, and what a trail slayer in stock form. Fitted with Fox Factory suspension in all complete models, the spec package is ready to march out of the garage and handle anything you can throw at it.

Geometry


  S M L XL
140mm Fork | 44mm Offset Fork
Seat Tube Length 410 450 483 518
Effective Top Tube 578 608 627 663
Head Tube Length 100 110 125 140
Head Tube Angle 66.1 66.1 66.1 66.1
Frame Stack 619 628 642 655
Frame Reach 421 447 454 485
Seat Tube Angle 75.5 75.5 75.5 75.5
Chain Stay Length 436 436 436 436
Bottom Bracket Drop 41 41 41 41
Bottom Bracket Height 336 336 336 336
Wheelbase 1155 1175 1199 1236
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 140mm Boost 15mm
Shock Fox DPX2 Factory Kashima EVOL LV 3-Position Adjust 7.875×2.0, 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 29×2.3 3c EXO TR, Maxxis Minion DHR 29×2.3 3c EXO TR
Fork Fox 36 29 Factory Kashima 140mm Boost 15mm
Shock Fox DPX2 Factory Kashima EVOL LV 3-Position Adjust 7.875×2.0, 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 29×2.3 3C EXO TR, Maxxis Minion DHR 29×2.3 3C EXO TR
Fork Fox 36 29 Factory Kashima 140mm Boost 15mm
Shock Fox DPX2 Factory Kashima EVOL LV 3-Position Adjust 7.875×2.0, 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 29×2.3 3C EXO TR, Maxxis Minion DHR 29×2.3 3C EXO TR
Fork Fox 36 29 Factory Kashima 140mm Boost 15mm
Shock Fox DPX2 Factory Kashima EVOL LV 3-Position Adjust 7.875×2.0, 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 29×2.3 3C EXO TR, Maxxis Minion DHR 29×2.3 3C EXO TR

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