2015 Author Spirit Base
- Category
- Hardtail Cross-country MTB
- Design
- Flat Bar, Hardtail (Front suspension)
- Frame
- Aluminum
- Suspension
- 100mm fork travel
- Features
- Disc brake
Very upright stack and reachvs category Suspension sag unknown Geometry may mis-represent actual riding geometry | Somewhat upright stack and reachvs category Suspension sag unknown Geometry may mis-represent actual riding geometry | Somewhat upright stack and reachvs category Suspension sag unknown Geometry may mis-represent actual riding geometry |
Geometry
17" | 19" | 21" | |
Stack | 644.3mm | 651.3mm | 656mm |
Reach | 408.1mm | 431.6mm | 443.9mm |
Stack to Reach Ratio | 1.58:1 | 1.51:1 | 1.48:1 |
Seat Tube Length, C-T | 432mm | 483mm | 535mm |
Top Tube Length, Effective/Horizontal HT Top | 606mm | 631mm | 651mm |
Top Tube Length, Actual C-C | 585mm | 605mm | 623mm |
Head Tube Angle | 70deg | 70.5deg | 70.5deg |
Seat Tube Angle | 73deg | 73deg | 72.5deg |
Head Tube Length | 115mm | 120mm | 125mm |
Bottom Bracket Drop | 58mm | 58mm | 58mm |
Bottom Bracket Height | 306.3mm | 306.3mm | 306.3mm |
Chainstay Length | 445mm | 445mm | 445mm |
Chainstay Length Horizontal | 441.2mm | 441.2mm | 441.2mm |
Front-Center | 678.3mm | 698.2mm | 712.2mm |
Front-Center Horizontal | 675.8mm | 695.8mm | 709.8mm |
Wheelbase | 1117mm | 1137mm | 1151mm |
Fork Offset/Rake | 51mm | 51mm | 51mm |
Fork Length (Axle-To-Crown) | 510mm | 510mm | 510mm |
Trail | 78.3mm high | 74.9mm high | 74.9mm high |
Mechanical Trail | 73.6mm | 70.6mm | 70.6mm |
Wheel Flop | 25.2mm | 23.6mm | 23.6mm |
Tire to Pedal Spindle | 143.9mm 170 mm cranks | 158.9mm 175 mm cranks | 172.8mm 175 mm cranks |
Pedal Spindle to Ground Clearance | 136.3mm 170 mm cranks | 131.3mm 175 mm cranks | 131.3mm 175 mm cranks |
Base Build
17" | 19" | 21" | |
Wheel Size | 700C/29 in 622 mm BSD | 700C/29 in 622 mm BSD | 700C/29 in 622 mm BSD |
Tire Width | 2.1in | 2.1in | 2.1in |
Tire Outer Diameter | 728.7mm | 728.7mm | 728.7mm |
Bike Length with Tires | 1845.7mm | 1865.7mm | 1879.7mm |
Crank Length | 170mm | 175mm | 175mm |
Handlebar Width | 700mm | 700mm | 700mm |
Published Sizing Recommendations
Height | 168 cm to 179 cm | 178 cm to 189 cm | 188 cm to 202 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:http://en.author.eu/cross-country/mtb-29/author-bicycle-spirit-29-2016-ua42863612#!technicka-specifikace