2025 stark Armer 29.5 HD
- Category
- Hardtail Cross-country MTB
- Design
- Flat Bar, Hardtail (Front suspension)
- Frame
- Aluminum
- Suspension
- 100mm fork travel
- Features
- Disc brake
Somewhat upright 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
M | L | XL | |
Stack | 638mm | 638mm | 638mm |
Reach | 425mm | 455mm | 465mm |
Stack to Reach Ratio | 1.5:1 | 1.4:1 | 1.37:1 |
Seat Tube Length, Unknown | 457mm | 508mm | 559mm |
Top Tube Length, Effective/Horizontal Unknown | 620mm | 650mm | 660mm |
Top Tube Length, Actual C-C | 598mm | 624mm | 637mm |
Top Tube Slope | 19.8deg | 14.2deg | 9.4deg |
Head Tube Angle | 68deg | 68deg | 68deg |
Seat Tube Angle | 73deg | 73deg | 73deg |
Head Tube Length | 120mm | 120mm | 120mm |
Bottom Bracket Drop | 64mm | 64mm | 64mm |
Bottom Bracket Height | 304.2mm | 304.2mm | 304.2mm |
Chainstay Length | 445mm | 445mm | 445mm |
Chainstay Length Horizontal | 440.4mm | 440.4mm | 440.4mm |
Front-Center | 709mm | 738mm | 748mm |
Front-Center Horizontal | 705.6mm | 735.6mm | 745.6mm |
Wheelbase | 1146mm | 1176mm | 1186mm |
Fork Offset/Rake | 45.2mm | 45.2mm | 45.2mm |
Trail | 100mm very high | 100mm very high | 100mm very high |
Mechanical Trail | 92.7mm | 92.7mm | 92.7mm |
Wheel Flop | 34.7mm | 34.7mm | 34.7mm |
Tire to Pedal Spindle | 170.9mm 170 mm cranks | 199.9mm 170 mm cranks | 209.9mm 170 mm cranks |
Pedal Spindle to Ground Clearance | 134.2mm 170 mm cranks | 134.2mm 170 mm cranks | 134.2mm 170 mm cranks |
29.5 HD Build
M | L | XL | |
Wheel Size | 700C/29 in 622 mm BSD | 700C/29 in 622 mm BSD | 700C/29 in 622 mm BSD |
Tire Width | 2.25in | 2.25in | 2.25in |
Tire Outer Diameter | 736.3mm | 736.3mm | 736.3mm |
Bike Length with Tires | 1882.3mm | 1912.3mm | 1922.3mm |
Published Sizing Recommendations
Height | 168 cm to 178 cm | 175 cm to 187 cm | 182 cm to 195 cm |
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 Cross-country MTBSource:https://stark.ru/bikes/mauntinbayki/armer/