2020 Alchemy Bicycles Arktos 27.5 Base S
Build
650B/27.5 in × 2.4 in
Insights
Average stack and reach vs trend of full-suspension trail mtb bikes
Suspension sag unknown
Geometry may mis-represent actual riding geometry
Stack and Reach vs. Category Trend
View all sizes
Geometry
| Stack | 589mm |
| Reach | 401mm |
| Stack to Reach Ratio | 1.47:1 |
| Seat Tube Length, C-T | 420mm |
| Top Tube Length, Effective/Horizontal HT Top | 585mm |
| Head Tube Angle | 65.5deg |
| Effective Seat Tube Angle, Seat Tube Top | 73.5deg |
| Head Tube Length | 100mm |
| Bottom Bracket Drop | 10mm |
| Bottom Bracket Height | 343mm |
| Chainstay Length | 438mm |
| Chainstay Length Horizontal | 437.9mm |
| Front-Center | 723.2mm |
| Front-Center Horizontal | 723.1mm |
| Wheelbase | 1161mm |
| Fork Offset/Rake | 39mm |
| Trail | 118mm very high |
| Mechanical Trail | 107.4mm |
| Wheel Flop | 44.5mm |
| Standover Height | 756mm |
| Tire to Pedal Spindle Distance With 170 mm cranks | 200.2mm |
| Pedal Spindle to Ground Clearance With 170 mm cranks | 173mm |
Base Build
| Wheel Size | 650B, 27.5 inch (584mm BSD) |
| Tire Width | 2.4in |
| Tire Outer Diameter | 705.9mm |
| Bike Length with Tires | 1866.9mm |
| Suspension Type | Full suspension |
| Bar Type | Flat Bar |
| Fork Travel | 170mm |
| Rear Travel | Unknown |
| Suspension Sag | Unknown |
| Frame Material | Carbon/Composite |
| Fork Material | N/A |
| Brake Type | Disc |
Published Sizing Recommendations
| Height | 5 ft 1 in to 5 ft 5 in |
Source:https://alchemybicycles.com/product/arktos-275/