Bianchi Siena Dama

Name: Bianchi Siena Dama
Brand: Bianchi

2018 UrbanFitness

Last known price: $400

Prices shown first for United States
Suspension: Rigid
Wheels: 700c
Drivetrain: 1 × 7 42t / 14–34t
Gear range: 243%
Frame: Aluminum
Brakes: Rim brake

Sizes

Size guide

38cm
42cm
50cm

The manufacturer did not publish rider heights for these sizes.

Components

7 of 18 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

Siena Dama Aluminum Not identified

Suspension

1 part

Fork
- Bianchi

Drivetrain

6 parts

Bottom bracket

Steel cartridge Not identified
Cassette
- Shimano 14–34t
Chain
- KMC
Crankset

Alloy 42T Not identified
Rear derailleur
- Shimano Tourney
Shifters
- Shimano

Brakes

1 part

Brakes

V-Brake Not identified

Wheels and tires

3 parts

Front hub

Alloy, 36hole Not identified
Rear hub

Alloy, 36hole Not identified
Tires
- Kenda Kwest
K-193

Cockpit and contact points

6 parts

Handlebar

Steel, 600mm Not identified
Headset

Steel, 1.1/8" Not identified
Pedals

Included Not identified
Saddle
- Bianchi
Seatpost

Alloy, 27.2mm Not identified
Stem

Alloy, quill Not identified

Sizes and geometry

3 sizes Open in the geometry plotter

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

Size 42cm

Table

Geometry diagram unavailable

The drawing needs reach, stack and head tube angle, which the manufacturer did not publish. Available facts remain in the table.

Size

Complete manufacturer geometry table 3 published sizes

Complete manufacturer geometry by size
Measurement
Top tube lengthmm	543	553	589
Seat tube lengthmm	380	420	500
Head tube lengthmm	110	120	130
Seat tube angle	73°	73°	73°
Chainstay lengthmm	450	450	450
Wheelbasemm	1054	1055	1091
Front centermm	611	612	648
Bottom bracket dropmm	60	60	60

Not published by the manufacturer: Reach, Stack, Head tube angle, Bottom bracket height, Standover height, Fork rake, Trail, Stack/reach ratio, Front travel, Rear travel, Crank length, Handlebar width, Stem length, Stem angle, Seatpost length and Dropper post travel.

Specifications

Frame and fork

Intended fit: womens
Frame material: Aluminum
Fork material: Steel

Suspension

Suspension configuration: Rigid

Drivetrain

Derived by Bikelake

Front chainrings: 1
Smallest chainring: 42
Largest chainring: 42
Rear sprockets: 7
Smallest sprocket: 14
Largest sprocket: 34
Lowest gear: 35.8 in
Highest gear: 87.0 in

Wheels and brakes

Wheel configuration: Same size
Brake type: Rim brake

Fit and controls

Seatpost: Rigid seatpost
Shifting: Mechanical

Additional specifications

Tire width: 38c
Travel: Front: Additional specification: Not available: Yes
Rear: Additional specification: Not available: Yes
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

35.8 gear inches

This value is above the central range for this class.

Cohort: Urban / Fitness Model year: 2018
Sample: 166 bicycles with this information
Coverage: 87.3% of the class

Highest gear

87.0 gear inches

This value is below the central range for this class.

Cohort: Urban / Fitness Model year: 2018
Sample: 166 bicycles with this information
Coverage: 87.3% of the class

Gearing

Estimated speeds at 80 rpm

Lowest gear: 13.7 km/h
Highest gear: 33.3 km/h

Total gear range 243%

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: 35.8–87.0 gear inches
Class reference (p10–p90): 22.2–131.8 gear inches; The band runs from p10 for the lowest gear to p90 for the highest gear.

Cohort: Urban / Fitness Model year: 2018
Lowest gear: 166 bicycles with this information, 87.3% of the class
Highest gear: 166 bicycles with this information, 87.3% of the class