2020 VAAST Bikes A/1 Base
- Category
- All-road/Gravel
- Design
- Drop Bar, Rigid, non-suspension corrected
- Fork
- Carbon/Composite
- Features
- Disc brake
Geometry
SMALL | MEDIUM | LARGE | X-LARGE | |
Stack | 536mm | 563mm | 595mm | 620mm |
Reach | 365mm | 380mm | 395mm | 410mm |
Stack to Reach Ratio | 1.47:1 | 1.48:1 | 1.51:1 | 1.51:1 |
Seat Tube Length, C-T | 520mm | 540mm | 560mm | 580mm |
Top Tube Length, Effective/Horizontal HT Top | 534mm | 557mm | 583mm | 605mm |
Top Tube Slope | 4.4deg | 5.1deg | 6.2deg | 6.5deg |
Head Tube Angle | 70deg | 71deg | 72deg | 72deg |
Seat Tube Angle | 72.5deg | 72.5deg | 72.5deg | 72.5deg |
Head Tube Length | 115mm | 140mm | 170mm | 195mm |
Bottom Bracket Drop | 68mm | 68mm | 68mm | 68mm |
Bottom Bracket Height | 283mm | 283mm | 283mm | 283mm |
Chainstay Length | 425mm | 425mm | 425mm | 425mm |
Chainstay Length Horizontal | 419.5mm | 419.5mm | 419.5mm | 419.5mm |
Front-Center | 592mm | 607mm | 623mm | 645mm |
Front-Center Horizontal | 588.5mm | 603.5mm | 618.5mm | 641.5mm |
Wheelbase | 1008mm | 1023mm | 1038mm | 1061mm |
Fork Offset/Rake | 49.9mm | 50.1mm | 49.7mm | 49.6mm |
Trail | 74.6mm high | 67.8mm high | 61.8mm mid/neutral | 61.9mm mid/neutral |
Mechanical Trail | 70.1mm | 64.1mm | 58.8mm | 58.9mm |
Wheel Flop | 24mm | 20.9mm | 18.2mm | 18.2mm |
Standover Height | 774mm | 797mm | 821mm | 841mm |
Tire to Pedal Spindle | 71mm 170 mm cranks | 83.5mm 172.5 mm cranks | 99.5mm 172.5 mm cranks | 119mm 175 mm cranks |
Pedal Spindle to Ground Clearance | 113mm 170 mm cranks | 110.5mm 172.5 mm cranks | 110.5mm 172.5 mm cranks | 108mm 175 mm cranks |
Base Build
SMALL | MEDIUM | LARGE | X-LARGE | |
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 | 40mm | 40mm | 40mm | 40mm |
Tire Outer Diameter | 702mm | 702mm | 702mm | 702mm |
Bike Length with Tires | 1710mm | 1725mm | 1740mm | 1763mm |
Crank Length | 170mm | 172.5mm | 172.5mm | 175mm |
Handlebar Width | 400mm | 420mm | 420mm | 440mm |
Stem Length | 90mm | 90mm | 90mm | 90mm |
Published Sizing Recommendations
Height | 5 ft 3 in to 5 ft 6 in | 5 ft 7 in to 6 ft 0 in | 6 ft 0 in to 6 ft 4 in | 6 ft 4 in to 6 ft 8 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
All-road/GravelSource:https://www.vaastbikes.com/bikemodels/a1/