2020 VAAST Bikes A/1 650b
- Category
- All-road/Gravel
- Design
- Drop Bar, Rigid, non-suspension corrected
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, Unknown | 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 | 271mm | 271mm | 271mm | 271mm |
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 | 50mm | 50mm | 50mm | 50mm |
Trail | 70.2mm high | 63.9mm mid/neutral | 57.6mm mid/neutral | 57.6mm mid/neutral |
Mechanical Trail | 65.9mm | 60.4mm | 54.8mm | 54.8mm |
Wheel Flop | 22.6mm | 19.7mm | 16.9mm | 16.9mm |
Standover Height | 774mm | 797mm | 821mm | 841mm |
Tire to Pedal Spindle | 83mm 170 mm cranks | 95.5mm 172.5 mm cranks | 111.5mm 172.5 mm cranks | 131mm 175 mm cranks |
Pedal Spindle to Ground Clearance | 101mm 170 mm cranks | 98.5mm 172.5 mm cranks | 98.5mm 172.5 mm cranks | 96mm 175 mm cranks |
650b Build
Small | Medium | Large | X-Large | |
Wheel Size | 650B/27.5 in 584 mm BSD | 650B/27.5 in 584 mm BSD | 650B/27.5 in 584 mm BSD | 650B/27.5 in 584 mm BSD |
Tire Width | 47mm | 47mm | 47mm | 47mm |
Tire Outer Diameter | 678mm | 678mm | 678mm | 678mm |
Bike Length with Tires | 1686mm | 1701mm | 1716mm | 1739mm |
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/