Haro Aeras ST

2021 UrbanHybrid Manufacturer page

Last known price: $599

Prices shown first for United States
Suspension: Rigid
Wheels: 700c
Drivetrain: 2 × 8 30–46t / 11–34t
Gear range: 474%
Weight: 12.47 kg 27.5 lb · Reference configuration not specified
Frame: Aluminum
Brakes: Mechanical disc

Sizes

Size guide

The manufacturer did not publish rider heights for these sizes.

Components

9 of 21 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

Haro Ventus Step Through | Heat-treated 6061 aluminum | Tig-welded construction | Rider-tuned geometry | 68mm threaded BSA bottom bracket shell | Flat-mount disc brake mount | Forged 135mm quick-release dropouts with replaceable derailleur hanger Not identified

Suspension

1 part

Fork
- Haro

Drivetrain

7 parts

Bottom bracket
- Shimano BB-UN101
BB-UN101
Cassette

Mid-range | 8-speed | 11-34T Not identified
Chain
- KMC Z8.1 8 speeds
Crankset
- Shimano Tourney FC-TY501 8 speeds 46/30t
FC-TY501TY-501
Front derailleur
- Shimano Tourney FD-TY710
FD-TY710
Rear derailleur
- Shimano Altus RD-M310-L
RD-M310
Shifters
- Shimano Altus SL-M315
SL-M315

Brakes

2 parts

Brake levers

Alloy | 3-finger Not identified
Brakes

Flat mount | Adjustable mechanical disc | I.S. 6-bolt rotors | F: 180mm, R: 160mm Not identified

Wheels and tires

4 parts

Front hub

Pivit Roundabout | Alloy shell | 100mm quick-release | I.S. 6-bolt disc | 28h Not identified
Rear hub

Pivit Roundabout | Alloy shell | 135mm quick-release | I.S. 6-bolt disc | 28h | 8-speed Not identified
Rims

Pivit Excelsior 700c | Width (internal): 19mm | 28h | Alloy double wall | disc-brake specifc Not identified
Tires

Kestrel 700 x 32c All Weather tires Not identified

Cockpit and contact points

6 parts

Handlebar

Pivit Commander Bar | Alloy | 31.8mm | 9° backsweep | 620mm width Not identified
Headset

Pivit Precision Plus | 1-1/8" threadless | Internal | For 50mm OD headtube Not identified
Pedals
- VP
Saddle
- Haro
Seatpost

Pivit Fixed Address | Alloy | Micro-adjust positioning | 27.2mm x 350mm | Zero-offset efficiency | 2-bolt simplicity Not identified
Stem

Pivit Maverick Stem | Alloy | Positive Positioning | 7° rise | 14": 75mm; 16": 90mm Not identified

Sizes and geometry

2 sizes Open in the geometry plotter

Complete rider-height ranges are not published for these sizes. You can still explore the geometry below.

Size XS

Table

Reach 377mm

Stack 533mm

Wheelbase 1043mm

Head angle 69.5°

Seat angle 74.0°

Every size is drawn to the same scale, in millimeters. Explanatory schematic on an assumed 700c wheel; exact published values are in the table below.

Size Reach Stack

Complete manufacturer geometry table 2 published sizes

Complete manufacturer geometry by size
Measurement
Frame
Reachmm	377	382
Stackmm	533	554
Top tube lengthmm	530	541
Seat tube lengthmm	356	406
Head tube lengthmm	120	140
Head tube angle	69.5°	70°
Seat tube angle	74°	74°
Chainstay lengthmm	445	445
Wheelbasemm	1043	1050
Front centermm	605	612
Bottom bracket dropmm	60	60
Standover heightmm	611	620
Fork rakemm	45	45
Trailmm	82	80
Stack/reach ratio	1.41	1.45
Suspension and parts
Crank lengthmm	170	170
Handlebar widthmm	620	620
Stem lengthmm	75	95

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: Aluminum
Fork material: Steel
Bicycle weight: 12.47 kg

27.5 lb

Suspension

Suspension configuration: Rigid

Drivetrain

Derived by Bikelake

Front chainrings: 2
Smallest chainring: 30
Largest chainring: 46
Rear sprockets: 8
Smallest sprocket: 11
Largest sprocket: 34
Lowest gear: 25.6 in
Highest gear: 121.3 in

Wheels and brakes

Wheel configuration: Same size
Brake type: Mechanical disc

Fit and controls

Seatpost: Rigid seatpost
Shifting: Mechanical

Additional specifications

Bottom bracket standard: BSA
Tire width: 32c
Travel: Additional specification: Seat: Additional specification: Not available: Yes
Wheel material: Aluminum
Wheel size: 700c

Technical analysis

2 measures

How these figures sit among bicycles of the same class and model year. Context, not a ranking.

Lowest gear

25.6 gear inches

This value is within the central range for this class.

Cohort: Urban / Hybrid Model year: 2021
Sample: 522 bicycles with this information
Coverage: 74.0% of the class

Highest gear

121.3 gear inches

This value is within the central range for this class.

Cohort: Urban / Hybrid Model year: 2021
Sample: 522 bicycles with this information
Coverage: 74.0% of the class

Gearing

Estimated speeds at 80 rpm

Lowest gear: 9.8 km/h
Highest gear: 46.4 km/h

Total gear range 474%

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.

This bicycle: 25.6–121.3 gear inches
Class reference (p10–p90): 21.6–126.6 gear inches; The band runs from p10 for the lowest gear to p90 for the highest gear.

Cohort: Urban / Hybrid Model year: 2021
Lowest gear: 522 bicycles with this information, 74.0% of the class
Highest gear: 522 bicycles with this information, 74.0% of the class