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Aeras ST

Aeras ST

Regular price $599.99
Regular price $599.99 Sale price $599.99
Sale Out of stock

SKU: SKU:11651

Simple, straightforward, and streamlined in an efficiency-first manner. The Aeras ST combines the wide-range gearing of mountain bikes with the lightweight efficiency of road bikes, making this sport fitness bike one of the most sensible in Haro's lineup. Need a bike to just be a 'bike' without compartmentalizing itself into a specific, indecipherable niche? Look no further, the Aeras is a bike before anything else, and there's nothing wrong with that at all.

Sizing Guide

Size Table
XS ST5' - 5'4"152.5 - 162.5
S ST5'3" - 5'7"160 - 170


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  • Rack Configuration 1

    Pictured: Haro Fitness bike with City AM rear carrier & Hybrid AM Front Carrier. Compatible with Aeras ST

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  • Rack & Accessory Configuration 2

    Pictured: Haro Fitness bike with City AM rear carrier & Hybrid AM Front Carrier with Bakery Crate & ZAP EASY Top Bag. Compatible with Aeras ST

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  • Rack & Accessory Configuration 3

    Pictured: Haro Fitness bike with City AM rear carrier & Hybrid AM Front Carrier with Dailey Large & Dailey Small Baskets. Compatible with Aeras ST

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  • Heat-treated alloy frame makes for a lightweight bike
  • 700 x 32 all purpose tire is quick on pavement and works for dirt paths as well
  • Name-brand Shimano drivetrain provides quality and shifting consistency
  • Neutral geometry provides efficient handling without discomfort
  • Double-wall, 28-hole alloy rims keep the weight down, but allow for off-pavement use
  • 2 x 8 gearing resists wear through a thicker chain, while providing plenty of gearing range for both hills and flats
  • Alloy frame, wheels, and components stay rust free


FrameHaro 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
ForkHaro Ventus | Classic steel | flat mount disc | 100mm quick-release spacing
ColorsCharcoal, Matte Muted Mint
Weight27.5 lbs
CranksShimano TY-501 | 46/30T | 8-speed | 170mm
PedalsVP | 990S | Nylon body with steel cages | Chromoly axles
ChainKMC Z8.1 | 8-speed
Bottom BracketShimano UN101 | Threaded BSA 68mm BB shell | Square taper 122.5mm spindle (LL123) | Sealed cartridge
Front DerailleurShimano Tourney FD-TY710 | Top Swing | 34.9mm band diameter
Rear DerailleurShimano Altus RD-M310-L | 8-speed | Direct attachment
Derailleur ShifterShimano SL-M315 | 2 x 8-speed Rapidfire Plus | Optical gear display
Freewheel/CassetteMid-range | 8-speed | 11-34T
TiresKestrel 700 x 32c All Weather tires
Wheels/RimsPivit Excelsior 700c | Width (internal): 19mm | 28h | Alloy double wall | disc-brake specifc
Front HubPivit Roundabout | Alloy shell | 100mm quick-release | I.S. 6-bolt disc | 28h
Rear HubPivit Roundabout | Alloy shell | 135mm quick-release | I.S. 6-bolt disc | 28h | 8-speed
BrakesFlat mount | Adjustable mechanical disc | I.S. 6-bolt rotors | F: 180mm, R: 160mm
Brake LeversAlloy | 3-finger
Grips/TapePivit Entonces | Dual-density durometer | Active tuned
HandlebarPivit Commander Bar | Alloy | 31.8mm | 9° backsweep | 620mm width
StemPivit Maverick Stem | Alloy | Positive Positioning | 7° rise | 14": 75mm; 16": 90mm
HeadsetPivit Precision Plus | 1-1/8" threadless | Internal | For 50mm OD headtube
SaddleHaro Rep Plus | Dual-sport tuned padding | Weather-resistant cover
Seat PostPivit Fixed Address | Alloy | Micro-adjust positioning | 27.2mm x 350mm | Zero-offset efficiency | 2-bolt simplicity
Seat ClampPivit Lockjaw | Alloy | 31.8mm | Multi-throw design | Quick release ease
ExtrasRack and fender mounts


Geometry frame chart
Geometry & Sizing
A. Seat Tube (C-T)356mm (14")406mm (16")
B. Top Tube (Effective)530mm (20.9")541mm (21.3")
C. Head Tube Angle69.5°70°
D. Seat Tube Angle74°74°
E. Chainstay Length445mm (17.5")445mm (17.5")
F. BB Drop60mm (2.4")60mm (2.4")
G. Wheelbase1043mm (41")1050mm (41.3")
H. Head Tube Length120mm (4.7")140mm (5.5")
I. Standover611mm (24")620mm (24.4")
J. Stack Height533mm (21")554mm (21.8")
K. Reach377mm (14.8")382mm (15")
L. Fork Heightmm (")mm (")
M. Fork Offset45mm (1.8")45mm (1.8")
N. Stem Length75mm95mm
O. Bar Width620mm620mm
P. Crank Length170mm170mm

    Need help choosing a size? Read our guide on choosing the right size bike.

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*Specifications are subject to change without notice

*Actual retail price may vary based on any added dealer freight, tax, and assembly fees