Giant Amplify

Name: Giant Amplify
Brand: Giant

2017 YouthGeneral youth Manufacturer page

Last known price: $240

Prices shown first for United States
Suspension: Rigid
Wheels: 16″
Drivetrain: 1 × 1 28t / 18t
Gear range: 100%
Frame: Aluminum
Brakes: Coaster brake

Sizes

Size guide

One Size

The manufacturer did not publish rider heights for these sizes.

Components

6 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

Giant Grow Technology frame design, Alloy and high-strength plastic Not identified

Suspension

2 parts

Fork

High-tensile steel, with safety end caps Not identified
Rear shock

None

Drivetrain

7 parts

Bottom bracket

Threaded, Non-sealed Not identified
Cassette

18T Not identified
Chain
- KMC
Crankset
- Giant 28t
Front derailleur

None
Rear derailleur

None
Shifters

None

Brakes

2 parts

Brake levers

None
Brakes

Coaster Not identified

Wheels and tires

5 parts

Front hub

Bolt-on, 20h, [R] Coaster-brake Not identified
Rear hub

Bolt-on, 20h, [R] Coaster-brake Not identified
Rims
- Giant
Spokes

Stainless Steel, 14g Not identified
Tires
- Giant

Cockpit and contact points

5 parts

Handlebar
- Giant
Pedals

Nylon Platform Not identified
Saddle
- Giant
Seatpost

Steel, 27.2mm Not identified
Stem

Alloy quill 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 One Size

Table

Geometry diagram unavailable

The drawing needs wheelbase, reach, stack, head tube angle, seat tube angle, head tube length, seat tube length, chainstay length and bottom bracket drop / Bottom bracket height, which the manufacturer did not publish. Available facts remain in the table.

Size

Complete manufacturer geometry table 1 published size

Complete manufacturer geometry by size
Measurement
Standover heightmm	399

Not published by the manufacturer: Reach, Stack, Top tube length, Seat tube length, Head tube length, Head tube angle, Seat tube angle, Chainstay length, Wheelbase, Front center, Bottom bracket drop, Bottom bracket 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: boys
Frame material: Aluminum
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: 18
Largest sprocket: 18
Lowest gear: 24.9 in
Highest gear: 24.9 in

Wheels and brakes

Wheel configuration: Same size
Brake type: Coaster brake

Fit and controls

Seatpost: Rigid seatpost
Shifting: No shifting

Additional specifications

Bottom bracket standard: BSA
Travel: Rear: Additional specification: Not available: Yes
Wheel material: Aluminum
Wheel size: 16″

Technical analysis

2 measures

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

Lowest gear

24.9 gear inches

This value is within the central range for this class.

Cohort: Youth / General youth Model year: 2017
Sample: 120 bicycles with this information
Coverage: 77.4% of the class

Highest gear

24.9 gear inches

This value is below the central range for this class.

Cohort: Youth / General youth Model year: 2017
Sample: 120 bicycles with this information
Coverage: 77.4% of the class

Gearing

Estimated speeds at 80 rpm

Lowest gear: 9.5 km/h
Highest gear: 9.5 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.

This bicycle: 24.9–24.9 gear inches
Class reference (p10–p90): 17.9–91.0 gear inches; The band runs from p10 for the lowest gear to p90 for the highest gear.

Cohort: Youth / General youth Model year: 2017
Lowest gear: 120 bicycles with this information, 77.4% of the class
Highest gear: 120 bicycles with this information, 77.4% of the class