2020 Alchemy Bicycles Arkti Base
- Category
- Hardtail Trail MTB
- Design
- Flat Bar, Hardtail (Front suspension)
- Frame
- Titanium
- Suspension
- 120mm fork travel
- Features
- Disc brake
Average stack and reachvs category Suspension sag unknown Geometry may mis-represent actual riding geometry | Average stack and reachvs category Suspension sag unknown Geometry may mis-represent actual riding geometry | Average stack and reachvs category Suspension sag unknown Geometry may mis-represent actual riding geometry | Average stack and reachvs category Suspension sag unknown Geometry may mis-represent actual riding geometry |
Geometry
S | M | L | XL | |
Stack | 607mm | 617mm | 626mm | 635mm |
Reach | 405mm | 430mm | 455mm | 485mm |
Stack to Reach Ratio | 1.5:1 | 1.43:1 | 1.38:1 | 1.31:1 |
Seat Tube Length, C-T | 370mm | 420mm | 470mm | 530mm |
Top Tube Length, Effective/Horizontal HT Top | 595mm | 620mm | 640mm | 680mm |
Top Tube Slope | 26.4deg | 21.4deg | 16.6deg | 11.2deg |
Head Tube Angle | 68deg | 68deg | 68deg | 68deg |
Seat Tube Angle | 74.5deg | 74.5deg | 74.5deg | 74.5deg |
Head Tube Length | 95mm | 105mm | 115mm | 125mm |
Bottom Bracket Drop | 58mm | 58mm | 58mm | 58mm |
Bottom Bracket Height | 311.4mm | 311.4mm | 311.4mm | 311.4mm |
Chainstay Length | 430mm | 430mm | 430mm | 430mm |
Chainstay Length Horizontal | 426.1mm | 426.1mm | 426.1mm | 426.1mm |
Front-Center | 681.4mm | 710.3mm | 739.2mm | 772.1mm |
Front-Center Horizontal | 678.9mm | 707.9mm | 736.9mm | 769.9mm |
Wheelbase | 1105mm | 1134mm | 1163mm | 1196mm |
Fork Offset/Rake | 44mm | 44mm | 44mm | 44mm |
Trail | 101.8mm very high | 101.8mm very high | 101.8mm very high | 101.8mm very high |
Mechanical Trail | 94.4mm | 94.4mm | 94.4mm | 94.4mm |
Wheel Flop | 35.4mm | 35.4mm | 35.4mm | 35.4mm |
Tire to Pedal Spindle | 142mm 170 mm cranks | 170.9mm 170 mm cranks | 199.8mm 170 mm cranks | 232.7mm 170 mm cranks |
Pedal Spindle to Ground Clearance | 141.4mm 170 mm cranks | 141.4mm 170 mm cranks | 141.4mm 170 mm cranks | 141.4mm 170 mm cranks |
Base Build
S | M | L | XL | |
Wheel Size | 700C/29 in 622 mm BSD | 700C/29 in 622 mm BSD | 700C/29 in 622 mm BSD | 700C/29 in 622 mm BSD |
Tire Width | 2.3in | 2.3in | 2.3in | 2.3in |
Tire Outer Diameter | 738.8mm | 738.8mm | 738.8mm | 738.8mm |
Bike Length with Tires | 1843.8mm | 1872.8mm | 1901.8mm | 1934.8mm |
Published Sizing Recommendations
Height | 5 ft 1 in to 5 ft 5 in | 5 ft 5 in to 5 ft 9 in | 5 ft 9 in to 6 ft 1 in | 6 ft 1 in to 6 ft 5 in |
Stack and Reach vs. Category Trend
Very Upright
Somewhat Upright
Average
Somewhat Aggressive
Very Aggressive
The Bike Insights Upright/Aggressive scale is based on analysis of a bike’s proportions relative to similar sized bikes in the same category.
Learn more about the Upright/Aggressive ScaleCategory Trend
Hardtail Trail MTBSource:https://alchemybicycles.com/product/arkti/