2021 Stern Motion 1.0 27.5" 20
Build
650B/27.5 in × 2.1 mm
Insights
Somewhat upright stack and reach vs trend of hardtail cross-country mtb bikes
Design deviates from other sizes of Stern Motion
Suspension sag unknown
Geometry may mis-represent actual riding geometry
Stack and Reach vs. Category Trend
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Geometry
| Stack | 626mm |
| Reach | 411mm |
| Stack to Reach Ratio | 1.52:1 |
| Seat Tube Length, Unknown | 508mm |
| Top Tube Length, Effective/Horizontal Unknown | 601mm |
| Top Tube Slope | 14.1deg |
| Head Tube Angle | 70deg |
| Seat Tube Angle | 73deg |
| Head Tube Length | 130mm |
| Bottom Bracket Drop | 45mm |
| Bottom Bracket Height | 249.1mm |
| Chainstay Length | 440mm |
| Chainstay Length Horizontal | 437.7mm |
| Front-Center | 664.8mm |
| Front-Center Horizontal | 663.3mm |
| Wheelbase | 1101mm |
| Fork Offset/Rake | 38.4mm |
| Trail | 66.2mm high |
| Mechanical Trail | 62.2mm |
| Wheel Flop | 21.3mm |
| Tire to Pedal Spindle Distance With 170 mm cranks | 200.7mm |
| Pedal Spindle to Ground Clearance With 170 mm cranks | 79.1mm |
1.0 27.5" Build
| Wheel Size | 650B, 27.5 inch (584mm BSD) |
| Tire Width | 2.1mm |
| Tire Outer Diameter | 588.2mm |
| Bike Length with Tires | 1689.2mm |
| Suspension Type | Hardtail (Front suspension) |
| Bar Type | Flat Bar |
| Fork Travel | 100mm |
| Suspension Sag | Unknown |
| Frame Material | Aluminum |
| Fork Material | Aluminum |
| Brake Type | Disc |
Published Sizing Recommendations
| Height | 175 cm to 185 cm |
Source:https://www.sportmaster.ru/product/21092240299/