A/1 Rival AXS 650b
Vaast
Gravel
A/1 Rival AXS 650b is a gravel road bike (2024), by Vaast. It is best suited to a wide range of riders thanks to its fit flexibility, leaning toward a balanced riding position, while being built for broader mixed-surface riding and longer routes. On MatchBikes metrics, it scores well for strong value-for-money versus many similar bikes, good fit flexibility for dialing in rider position, and a balanced ride feel between comfort and directness. The trade-off to keep in mind is less emphasis on outright speed than speed-focused builds. This summary is a starting point—compare this bike on MatchBikes.com with similar bikes.
5.4
Rating

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Score Summary
Performance
2.8
Value
8.5
Fit
6.8
Performance
Built for speed and efficiency
Speed
2.9
Very Low
Climbing Efficiency
4.1
All-Rounder
Aerodynamics
4.9
Minimal Aero
Fit
Dialed-in Fit & Comfort
Riding Position
5.9
Balanced
Fit Flexibility
7.8
Adjustable
Ride Comfort
6.4
Balanced
Value
Value for Money
8.5
Great Value
Surface Range
AdventureSpecifications
General
Brand
Vaast
Model
A/1 Rival AXS 650b
Year
2024
Price
$2,999
Category
Road
Sub Category
Gravel
Groupset
Rival XPLR AXS, Rival AXS
Frame
Frame
Allround-Allroad 700c/650b disc, AE81 SuperMag, VAAST Allroad geometry, internal cable routing, dropper post ready. Rack and fender ready
Suspension Fork
VAAST Allround-Allroad full-carbon disc, rack & fender ready
Suspension Type
Rigid
Drivetrain
Shift Levers
SRAM Rival eTAP AXS
Rear Derailleur
SRAM Rival XPLR eTap AXS
Cassette
SRAM XPLR XG-1251 10-44, 12-Speed
Crank
SRAM Rival 1, 40T
Bottom Bracket
SRAM DUB T47
Chain
SRAM Rival 12-speed
Wheels
Rims
Stan's Notubes Grail S1 w/Stan's tubeless rim tape
Spokes
Double butted stainless
Tires
Maxxis Rambler 650b x47mm 120tpi, EXO/Tubeless Ready w/Lightweight tubes
Brakes
Brake Type
Hydraulic Disc
Brake Description
SRAM Rival1 Hydraulic
Cockpit
Stem
VAAST Allroad Pro, 3D forged, 6 degree
Handlebar
VAAST Allroad Pro, butted 6061 aluminum
Seat
Saddle
WTB Volt 142 Comp
Seatpost
VAAST Carbon fiber 27.2mm (300mm XS/S/M. 350mm L/XL)
Geometry
| Measurement | XS | SM | MD | LG | XL |
|---|---|---|---|---|---|
| Stack Reach Ratio | 1.444 mm | 1.468 mm | 1.482 mm | 1.506 mm | 1.512 mm |
| Front Center | 582 mm | 592 mm | 607 mm | 623 mm | 645 mm |
| Rake | 52 mm | 50 mm | 50 mm | 50 mm | 50 mm |
| Trail | 68 mm | 67 mm | 61 mm | 55 mm | 55 mm |
| Stack | 514 mm | 536 mm | 563 mm | 595 mm | 620 mm |
| Reach | 356 mm | 365 mm | 380 mm | 395 mm | 410 mm |
| Top Tube Length | 518 mm | 534 mm | 557 mm | 583 mm | 605 mm |
| Seat Tube Angle | 72.5 ° | 72.5 ° | 72.5 ° | 72.5 ° | 72.5 ° |
| Seat Tube Length | 500 mm | 520 mm | 540 mm | 560 mm | 580 mm |
| Head Tube Angle | 69.5 ° | 70 ° | 71 ° | 72 ° | 72 ° |
| Head Tube Length | 95 mm | 115 mm | 140 mm | 170 mm | 195 mm |
| Chainstay Length | 425 mm | 425 mm | 425 mm | 425 mm | 425 mm |
| Wheelbase | 998 mm | 1008 mm | 1023 mm | 1038 mm | 1061 mm |
| Bottom Bracket Drop | 68 mm | 68 mm | 68 mm | 68 mm | 68 mm |
| Standover Height | 754 mm | 774 mm | 797 mm | 821 mm | 841 mm |
| Wheels | 650 | 650 | 650 | 650 | 650 |
| Rider Min Height | 156 cm | 163 cm | 171 cm | 179 cm | 185 cm |
| Rider Max Height | 166 cm | 174 cm | 182 cm | 189 cm | 195 cm |




























































