
VAAST BIKES A/1 RIVAL 650B
One Bike, All Roads
"Your All-Access Pass to Adventure."
The VAAST A/1 is a masterpiece of all-road design, crafted for the rider who refuses to be limited by the pavement. This is a bike that redefines versatility. Feel the astonishingly lightweight and responsive ride of the revolutionary AE81 ALLITE Super Magnesium™ frame. Experience a ride that is both spirited and supremely comfortable, thanks to a full carbon fork and the plush, high-volume 650b wheelset. With its clean lines and premium SRAM Rival components, the A/1 is the ultimate expression of sophisticated, go-anywhere performance.
This Is The Tool For You If...
- You want one high-performance bike for both fast gravel epics and rugged singletrack.
- You value a lightweight, agile bike for navigating technical terrain with speed and precision.
- You crave a smooth, comfortable ride that dampens trail chatter without sacrificing performance.
- You appreciate high-end design, innovative materials, and a premium finish.

The Magnesium Advantage

Stronger, Lighter, Better
This is what the future of cycling feels like. The A/1 is built around a revolutionary AE81 ALLITE Super Magnesium™ frame, a material that is lighter than aluminum, stronger than steel, and more eco-friendly than both. Feel the bike's explosive acceleration and nimble handling, a direct result of its incredibly low weight. Sense how the frame's unique properties dampen trail vibrations, creating a ride that is both responsive and remarkably smooth. It’s a tangible advantage that you'll feel on every pedal stroke.
Command and Control

Precision at Your Fingertips
This bike is equipped with the legendary SRAM Rival 1 groupset, renowned for its crisp, reliable shifting and powerful hydraulic braking. Feel the immediate, confident response as you click through the wide-range 11-speed cassette. Sense the powerful, modulated braking as you navigate a technical descent. It's a race-proven component package that gives you the confidence to push your limits, knowing you're always in complete control.
Key Features
SRAM Rival 1x11 Drivetrain
A simple, reliable, and high-performance 1x drivetrain with a wide 11-42T gear range, perfect for any terrain.
SRAM Rival Hydraulic Brakes
Powerful hydraulic disc brakes with 160mm rotors provide confident, all-weather stopping power and precise control.
WTB Venture 650b Tires
Durable, high-volume tires with a versatile tread pattern provide a fast, comfortable, and confident ride on any surface.
Internal Cable Routing
Provides a clean, modern aesthetic while protecting your cables from the elements for a dependable ride.
Accessory Ready
Frame and fork mounts for racks and fenders make it easy to customize your A/1 for your specific needs.
See It In Action
Technical Specifications
Frame | Allround-Allroad 700c/650b disc - AE81 ALLITE Super Mag |
---|---|
Fork | VAAST Allround-Allroad full-carbon disc |
Tires | Maxxis Rambler 650x47b 120tpi - EXO/Tubeless Ready |
Rims | Stans Notubes Crest 27.5 |
Rotors | SRAM Centerline 160mm |
Crank | Praxis Zyante carbon 42T w/ M30 axle |
Cassette | SRAM 11-42 - 11-Speed |
Shifters | SRAM Rival1 |
RD | SRAM Rival1 11sp Long cage |
Mechanicals
Chain | SRAM 11sp |
---|---|
Brakes | SRAM Rival1 Hydraulic |
Bottom Bracket | Praxis T47 IB Enduro Bearings |
Hub F | Sealed cartridge bearing - 12 x 100mm thru axle |
Hub R | Sealed cartridge bearing - 12 x 142mm thru axle |
Handlebar | VAAST Allroad Pro - butted 6061 aluminum |
Seat Post | VAAST Carbon fiber 27.2mm |
Saddle | WTB Volt 142 Comp |
Dimensions & Sizing
Please consult a professional bike fitter for precise sizing.
Performance Ratings
Belcopia Rating
94%
The VAAST A/1 is a stunning achievement in all-road bike design. Its revolutionary magnesium frame delivers a ride that is both incredibly lightweight and surprisingly comfortable, while the SRAM Rival groupset provides flawless performance. For the discerning rider who values cutting-edge technology and a refined aesthetic, this bike is in a class of its own.