Diamondback Jazzi 12

2023 YouthGeneral youth Manufacturer page

Last known price: $110

Prices shown first for United States
Suspension: Rigid
Wheels: 12″
Drivetrain: 1 × 1 28t / 16t
Gear range: 100%
Frame: Steel
Brakes: Coaster brake

Sizes

Size guide

The manufacturer did not publish rider heights for these sizes.

Components

1 of 19 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

12" Girls Step-Thru Hi-Ten Steel Not identified

Suspension

1 part

Fork

12" Hi-Ten Steel Not identified

Drivetrain

4 parts

Bottom bracket

9pc Loose Ball Not identified
Cassette

16t Cog Not identified
Chain
- KMC
Crankset

3 - 1/2" 1pc Steel, 28t Not identified

Brakes

1 part

Brakes

Coaster Brake Not identified

Wheels and tires

5 parts

Front hub

Steel 16h Nutted Not identified
Rear hub

Steel 16h Nutted Coaster Not identified
Rims

Alloy Anodized 16h Not identified
Spokes

14g Not identified
Tires

12 x 2.125" Not identified

Cockpit and contact points

7 parts

Grips

Jr. Soft Kraton Rubber Not identified
Handlebar

DB Youth Bar, Steel Not identified
Headset

1" Threaded Not identified
Pedals

Resin Platform Not identified
Saddle

Jr. BMX Padded Not identified
Seatpost

Alloy 25.4 x 200mm Not identified
Stem

Alloy/Steel Quill 2-Bolt type Not identified

Sizes and geometry

1 size Open in the geometry plotter

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

Size 12"

Table

Geometry diagram unavailable

The drawing needs bottom bracket drop / Bottom bracket height, which the manufacturer did not publish. Available facts remain in the table.

Size Reach Stack

Complete manufacturer geometry table 1 published size

Complete manufacturer geometry by size
Measurement
Frame
Reachmm	243
Stackmm	253
Top tube lengthmm	335
Seat tube lengthmm	180
Head tube lengthmm	80
Head tube angle	73°
Seat tube angle	70°
Chainstay lengthmm	241
Wheelbasemm	592
Standover heightmm	320
Fork rakemm	22
Stack/reach ratio	1.04
Suspension and parts
Handlebar widthmm	470
Stem lengthmm	35

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

Specifications

Frame and fork

Intended fit: girls
Frame material: Steel
Fork material: Steel

Suspension

Suspension configuration: Rigid

Drivetrain

Derived by Bikelake

Front chainrings: 1
Smallest chainring: 28
Largest chainring: 28
Rear sprockets: 1
Smallest sprocket: 16
Largest sprocket: 16
Lowest gear: 21.0 in
Highest gear: 21.0 in

Wheels and brakes

Wheel configuration: Same size
Brake type: Coaster brake

Fit and controls

Seatpost: Rigid seatpost
Shifting: No shifting

Additional specifications

Tire width: 2.125″
Wheel material: Aluminum
Wheel size: 12″

Gearing

Estimated speeds at 80 rpm

Lowest gear: 8.0 km/h
Highest gear: 8.0 km/h

Total gear range 100%

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.