Vaast U/1 650b

2023 UrbanHybrid Manufacturer page

Last known price: $699

Prices shown first for United States
Suspension: Rigid
Wheels: 650b
Drivetrain: 1 × 9 40t / 11–42t
Gear range: 382%
Frame: Magnesium
Brakes: Hydraulic disc

Rider height by size (cm)

Size guide

SM 158–170
MD 168–179
LG 176–187

Components

11 of 17 identified

Parts found in a manufacturer catalog show their brand, model and key numbers, and the steps show how precisely they are identified: brand, series, model, or the exact product. The info button has every detail and the text the manufacturer published.

Frame and fork

1 part

Frame

Urban Optimized 700c / 650b AE81 ALLITE Super Mag - VAAST Urban geometry - internal cable routing - fender / rack ready Not identified

Suspension

1 part

Fork
- Vaast

Drivetrain

6 parts

Bottom bracket

Sealed cartridge bearing Not identified
Cassette
- microSHIFT 11–42t
Chain
- KMC X9 9 speeds
Crankset

Forged Alloy - 40T Not identified
Rear derailleur
- microSHIFT ADVENT Rear Derailleur 9 Speed Medium Cage 9 speeds
Shifters
- microSHIFT Advent X

Brakes

2 parts

Brakes

Hydraulic disc brakes w/Three finger lever Not identified
Disc rotors

160mm F & R Not identified

Wheels and tires

3 parts

Rims
- Alex Rims
Spokes

Double butted stainless Not identified
Tires
- WTB

Cockpit and contact points

4 parts

Sizes and geometry

3 sizes Open in the geometry plotter

Enter your height to highlight matching ranges.

Size MD

Table

Reach 410mm

Stack 590mm

Wheelbase 1077mm

Head angle 71.0°

Seat angle 73.0°

Every size is drawn to the same scale, in millimeters. Explanatory schematic on an assumed 650b wheel; exact published values are in the table below.

Size Reported by the manufacturer

Complete manufacturer geometry table 3 published sizes

Complete manufacturer geometry by size
Measurement
Frame
Reachmm	390	410	435
Stackmm	555	590	631
Top tube lengthmm	560	590	628
Seat tube lengthmm	405	455	510
Head tube lengthmm	130	167	210
Head tube angle	71°	71°	71°
Seat tube angle	73°	73°	73°
Chainstay lengthmm	438	438	438
Wheelbasemm	1045	1077	1116
Front centermm	615	647	686
Bottom bracket dropmm	65	65	65
Standover heightmm	715	758	808
Fork rakemm	50	50	50
Trailmm	61	61	61
Stack/reach ratio	1.42	1.44	1.45
Suspension and parts
Crank lengthmm	170	170	170
Handlebar widthmm	660	660	660
Stem lengthmm	80	80	80

Not published by the manufacturer: Bottom bracket height, Front travel, Rear travel, Stem angle, Seatpost length and Dropper post travel.

Specifications

Frame and fork

Intended fit: Unisex
Frame material: Magnesium
Fork material: Carbon

Suspension

Suspension configuration: Rigid

Drivetrain

Derived by Bikelake

Front chainrings: 1
Smallest chainring: 40
Largest chainring: 40
Rear sprockets: 9
Smallest sprocket: 11
Largest sprocket: 42
Lowest gear: 26.2 in
Highest gear: 100.0 in

Wheels and brakes

Wheel configuration: Same size
Brake type: Hydraulic disc

Fit and controls

Seatpost: Rigid seatpost
Shifting: Mechanical

Additional specifications

Tire width: 47c
Wheel material: Aluminum
Wheel size: 650b

Gearing

Estimated speeds at 80 rpm

Lowest gear: 10.0 km/h
Highest gear: 38.3 km/h

Total gear range 382%

Technical details and class reference

These speeds describe the gearing at the selected cadence, not how fast you can ride.
Calculated from published gear-inch values and their wheel-size assumptions.
These gearing values describe the bicycle, not a selected frame size.
A 100% range means one ratio; 500% means the highest ratio is five times the lowest.
For e-bikes, motor assistance cutoff is not represented.

Gear-inch range

Lower gear-inch values travel less distance per pedal revolution; higher values travel farther.