Giant XTC Jr 20 C/B

Name: Giant XTC Jr 20 C/B
Brand: Giant

2021 YouthMountain youth Manufacturer page

Last known price: $330

Prices shown first for United States
Fork travel: 50 mm
Wheels: 20″
Drivetrain: 1 × 1 32t / 18t
Gear range: 100%
Frame: Aluminum
Brakes: Coaster brake

Rider height by size (cm)

Size guide

One Size 120–140

Components

5 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

ALUXX-Grade Aluminum Not identified

Suspension

2 parts

Fork

high-tensile steel, 50mm Not identified
Rear shock

None

Drivetrain

7 parts

Bottom bracket

semi-cartridge Not identified
Cassette

18t Not identified
Chain
- KMC
Crankset

32t, 127mm Not identified
Front derailleur

None
Rear derailleur

None
Shifters

None

Brakes

2 parts

Brake levers

alloy, junior MTB Not identified
Brakes

Coaster & Alloy linear pull brakes (rear only) Not identified

Wheels and tires

5 parts

Front hub

nutted, 28h Not identified
Rear hub

nutted, 28h Not identified
Rims
- Giant
Spokes

stainless, 14g Not identified
Tires
- Giant

Cockpit and contact points

5 parts

Handlebar
- Giant
Pedals

platform Not identified
Saddle
- Giant
Seatpost

alloy, 27.2 Not identified
Stem

steel, quill Not identified

Sizes and geometry

1 size Open in the geometry plotter

Enter your height to highlight matching ranges.

Size One Size

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 Reported by the manufacturer

Complete manufacturer geometry table 1 published size

Complete manufacturer geometry by size
Measurement
Frame
Reachmm	323
Stackmm	393
Top tube lengthmm	450
Seat tube lengthmm	254
Head tube lengthmm	120
Head tube angle	69°
Seat tube angle	72°
Chainstay lengthmm	375
Wheelbasemm	889
Standover heightmm	524
Fork rakemm	38
Trailmm	58.5
Stack/reach ratio	1.22
Suspension and parts
Crank lengthmm	140
Handlebar widthmm	520
Stem lengthmm	60

Not published by the manufacturer: Front center, Bottom bracket drop, 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

Suspension

Suspension configuration: Hardtail
Front travel: 50 mm

Drivetrain

Derived by Bikelake

Front chainrings: 1
Smallest chainring: 32
Largest chainring: 32
Rear sprockets: 1
Smallest sprocket: 18
Largest sprocket: 18
Lowest gear: 35.6 in
Highest gear: 35.6 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: 2.1″
Wheel material: Aluminum
Wheel size: 20″

Technical analysis

2 measures

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

Lowest gear

35.6 gear inches

This value is above the central range for this class.

Cohort: Youth / Mountain youth Model year: 2021
Sample: 230 bicycles with this information
Coverage: 72.3% of the class

Highest gear

35.6 gear inches

This value is below the central range for this class.

Cohort: Youth / Mountain youth Model year: 2021
Sample: 230 bicycles with this information
Coverage: 72.3% of the class

Gearing

Estimated speeds at 80 rpm

Lowest gear: 13.6 km/h
Highest gear: 13.6 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: 35.6–35.6 gear inches
Class reference (p10–p90): 15.6–80.0 gear inches; The band runs from p10 for the lowest gear to p90 for the highest gear.

Cohort: Youth / Mountain youth Model year: 2021
Lowest gear: 230 bicycles with this information, 72.3% of the class
Highest gear: 230 bicycles with this information, 72.3% of the class

Lineup changes

The published facts that differ across this family's builds and from the same model a year earlier. Missing information never counts as zero.

Differences across 2021 builds
Specification	This bicycle Giant XTC Jr 20 C/B	Giant XTC Advanced 29 1	Giant XTC Advanced 29 2	Giant XTC, Advanced 29 3	Giant XTC Advanced SL 29 0	Giant XTC Advanced, SL 29 1
Frame
Frame material	Aluminum	Carbon	Carbon	Carbon	Carbon	Carbon
Fork material	Steel	Not informed	Not informed	Not informed	Not informed	Not informed
Suspension
Front travel	50 mm	100 mm	100 mm	100 mm	100 mm	100 mm
Drivetrain
Smallest chainring	32	32	32	32	34	34
Largest chainring	32	32	32	32	34	34
Rear sprockets	1	12	12	12	12	12
Smallest sprocket	18	10	10	11	10	10
Largest sprocket	18	51	51	51	51	51
Lowest gear	35.6 in	18.2 in	18.2 in	18.2 in	19.3 in	19.3 in
Highest gear	35.6 in	92.8 in	92.8 in	84.4 in	98.6 in	98.6 in
Brakes
Brake type	Coaster brake	Hydraulic disc	Hydraulic disc	Hydraulic disc	Hydraulic disc	Hydraulic disc
Cockpit
Seatpost	Rigid seatpost	Dropper seatpost	Rigid seatpost	Rigid seatpost	Dropper seatpost	Dropper seatpost
Shifting	No shifting	Mechanical	Mechanical	Mechanical	Mechanical	Mechanical
Other specifications
Tire width	2.1″	2.25″	2.25″	2.25″	2.25″	2.25″
Wheel material	Aluminum	Carbon	Aluminum	Aluminum	Carbon	Carbon
Wheel size	20″	29″	29″	29″	29″	29″
Bottom bracket standard	Not informed	BB86/BB92	BB86/BB92	Not informed	BB86/BB92	BB86/BB92
Fork spring	Not informed	Air	Air	Air	Air	Not informed

Changes since 2020
Specification	2020 Giant XTC Jr 20 C/B	This bicycle Giant XTC Jr 20 C/B
Suspension
Suspension configuration	Rigid	Hardtail
Front travel	Not informed	50 mm
Brakes
Brake type	Rim brake	Coaster brake
Other specifications
Suspension	Rigid	Hardtail
Tire width	1.95″	2.1″