2026 Jamis Bicycles Ventura A1, A2
- Category
- Endurance Road
- Design
- Drop Bar, Rigid, non-suspension corrected
- Frame
- Aluminum
- Fork
- Carbon/Composite
Geometry
48 | 51 | 54 | 56 | 58 | 61 | |
Stack | 531mm | 553mm | 570mm | 598mm | 616mm | 635mm |
Reach | 360mm | 365mm | 373mm | 376mm | 383mm | 388mm |
Stack to Reach Ratio | 1.48:1 | 1.52:1 | 1.53:1 | 1.59:1 | 1.61:1 | 1.64:1 |
Top Tube Length, Effective/Horizontal Unknown | 505mm | 526mm | 548mm | 559mm | 571mm | 582mm |
Head Tube Angle | 70deg | 71.5deg | 73deg | 73deg | 73deg | 73deg |
Seat Tube Angle | 75deg | 74deg | 73deg | 73deg | 73deg | 73deg |
Head Tube Length | 125mm | 145mm | 160mm | 185mm | 205mm | 225mm |
Bottom Bracket Drop | 71mm | 69mm | 68mm | 68mm | 66mm | 66mm |
Bottom Bracket Height | 270mm | 272mm | 273mm | 273mm | 275mm | 275mm |
Chainstay Length | 415mm | 415mm | 420mm | 420mm | 425mm | 425mm |
Chainstay Length Horizontal | 408.9mm | 409.2mm | 414.5mm | 414.5mm | 419.8mm | 419.8mm |
Front-Center | 583.5mm | 584.9mm | 585.5mm | 587.5mm | 598.8mm | 609.7mm |
Front-Center Horizontal | 579.1mm | 580.8mm | 581.5mm | 583.5mm | 595.2mm | 606.2mm |
Wheelbase | 988mm | 990mm | 996mm | 998mm | 1015mm | 1026mm |
Fork Offset/Rake | 50mm | 50mm | 43mm | 43mm | 43mm | 43mm |
Trail | 70.9mm high | 61.4mm mid/neutral | 59.3mm mid/neutral | 59.3mm mid/neutral | 59.3mm mid/neutral | 59.3mm mid/neutral |
Mechanical Trail | 66.6mm | 58.2mm | 56.7mm | 56.7mm | 56.7mm | 56.7mm |
Wheel Flop | 22.8mm | 18.5mm | 16.6mm | 16.6mm | 16.6mm | 16.6mm |
Standover Height | 729mm | 764mm | 779mm | 803mm | 821mm | 838mm |
Tire to Pedal Spindle | 72.5mm 170 mm cranks | 73.9mm 170 mm cranks | 74.5mm 170 mm cranks | 76.5mm 170 mm cranks | 87.8mm 170 mm cranks | 98.7mm 170 mm cranks |
Pedal Spindle to Ground Clearance | 100mm 170 mm cranks | 102mm 170 mm cranks | 103mm 170 mm cranks | 103mm 170 mm cranks | 105mm 170 mm cranks | 105mm 170 mm cranks |
A1, A2 Build
48 | 51 | 54 | 56 | 58 | 61 | |
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 | 700C/29 in 622 mm BSD | 700C/29 in 622 mm BSD |
Tire Width | 30mm | 30mm | 30mm | 30mm | 30mm | 30mm |
Tire Width Max | 32mm | 32mm | 32mm | 32mm | 32mm | 32mm |
Tire Outer Diameter | 682mm | 682mm | 682mm | 682mm | 682mm | 682mm |
Bike Length with Tires | 1670mm | 1672mm | 1678mm | 1680mm | 1697mm | 1708mm |
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
Endurance RoadSource:https://www.jamisbikes.com/bikes/adventure-gravel/road/ventura/