VENTURA A1
Jamis
Race
VENTURA A1 is an alloy race road bike (2022), by Jamis, from the Ventura lineup. This model is best for riders who want a sporty road feel without a full race fit, leaning toward a sporty riding position, with a surface profile that is best matched to paved roads. The main strengths in the metrics are strong value-for-money versus many similar bikes, good fit flexibility for dialing in rider position, and a balanced aero profile for mixed road priorities. At the same time, the main limitation versus more focused builds is a firmer ride feel than comfort-first options. Compare this bike across categories on MatchBikes.com to see whether a nearby segment gives you a better fit.
Rating

Score Summary
Performance
Built for speed and efficiency
Fit
Dialed-in Fit & Comfort
Value
Specifications
General
Frame
Drivetrain
Wheels
Brakes
Cockpit
Seat
Geometry
| Measurement | 44cm | 48cm | 48cm | 51cm | 51cm | 54cm | 54cm | 56cm | 58cm | 61cm |
|---|---|---|---|---|---|---|---|---|---|---|
| Stack Reach Ratio | 1.45 mm | 1.47 mm | 1.47 mm | 1.52 mm | 1.51 mm | 1.54 mm | 1.52 mm | 1.58 mm | 1.6 mm | 1.63 mm |
| Bottom Bracket Height | 265 mm | 265 mm | 267 mm | 267 mm | 267 mm | 268 mm | 268 mm | 268 mm | 270 mm | 270 mm |
| Front Center | 579 mm | 583 mm | 582 mm | 595 mm | 585 mm | 590 mm | 586 mm | 587 mm | 599 mm | 610 mm |
| Rake | 50 mm | 50 mm | 50 mm | 50 mm | 50 mm | 43 mm | 43 mm | 43 mm | 43 mm | 43 mm |
| Trail | 69 mm | 70 mm | 63 mm | 63 mm | 59 mm | 64 mm | 64 mm | 57 mm | 59 mm | 59 mm |
| Stack | 527 mm | 537 mm | 544 mm | 567 mm | 559 mm | 586 mm | 576 mm | 604 mm | 622 mm | 641 mm |
| Reach | 364 mm | 366 mm | 369 mm | 374 mm | 371 mm | 381 mm | 379 mm | 382 mm | 389 mm | 394 mm |
| Top Tube Length | 497 mm | 511 mm | 511 mm | 527 mm | 532 mm | 543 mm | 554 mm | 565 mm | 577 mm | 588 mm |
| Seat Tube Angle | 76 ° | 75 ° | 75.5 ° | 75 ° | 74 ° | 74.5 ° | 73 ° | 73 ° | 73 ° | 73 ° |
| Seat Tube Length | 440 mm | 480 mm | 480 mm | 510 mm | 510 mm | 540 mm | 540 mm | 560 mm | 580 mm | 610 mm |
| Head Tube Angle | 70 ° | 70 ° | 71 ° | 71 ° | 71.5 ° | 72 ° | 72 ° | 73 ° | 73 ° | 73 ° |
| Head Tube Length | 115 mm | 125 mm | 130 mm | 155 mm | 145 mm | 170 mm | 160 mm | 185 mm | 205 mm | 225 mm |
| Chainstay Length | 421 mm | 421 mm | 421 mm | 421 mm | 421 mm | 426 mm | 426 mm | 426 mm | 431 mm | 431 mm |
| Wheelbase | 990 mm | 994 mm | 993 mm | 1006 mm | 996 mm | 1007 mm | 1002 mm | 1004 mm | 1021 mm | 1032 mm |
| Bottom Bracket Drop | 71 mm | 71 mm | 69 mm | 69 mm | 69 mm | 68 mm | 68 mm | 68 mm | 66 mm | 66 mm |
| Standover Height | 714 mm | 735 mm | 740 mm | 773 mm | 770 mm | 792 mm | 785 mm | 809 mm | 827 mm | 844 mm |
| Wheels | 700 | 700 | 700 | 700 | 700 | 700 | 700 | 700 | 700 | 700 |




























































