Commençal Supreme 20

2018 YouthGeneral youth Manufacturer page

Last known price: $1,699

Prices shown first for United States
Travel: 120 / 100 mm Fork / rear shock
Wheels: 20″
Drivetrain: 1 × 1 34t / 15t
Gear range: 100%
Weight: 11.1 kg 24.5 lb · Reference configuration not specified
Frame: Aluminum
Brakes: Hydraulic disc

Sizes

Size guide

20"
24"
JUNIOR

The manufacturer did not publish rider heights for these sizes.

Components

11 of 22 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

2018 SUPREME 20, 6066 alloy hydroformed Not identified

Suspension

2 parts

Fork

RIDE ALPHA Prodigy 20", 120 mm, air spring, 15 mm TA Not identified
Rear shock
- RockShox Monarch R

Drivetrain

7 parts

Bottom bracket

RIDE ALPHA EB24 73 mm sealed bearings Not identified
Cassette

15T sprocket Not identified
Chain

YABAN, single speed Not identified
Chain guide

None
Crankset

RIDE ALPHA 2 pieces crankset, 34T, 145 mm Not identified
Rear derailleur

Not identified
Shifters

Not identified

Brakes

2 parts

Brake levers
- Tektro HD-M282
HD-M282
Brakes
- Tektro HD-M282
HD-M282

Wheels and tires

5 parts

Cockpit and contact points

7 parts

Grips
- Commencal
Handlebar
- Race Face Ride Handlebar - 31.8
Headset

RIDE ALPHA ZS44 / ZS56 Not identified
Pedals

None
Saddle

RIDE ALPHA Kids Pivotal Not identified
Seatpost

RIDE ALPHA Kids, alloy Pivotal, 31.6 mm, 300 mm Not identified
Stem
- Race Face Ride 31.8

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 24"

Table

Reach 313mm

Stack 548mm

Wheelbase 1026mm

Head angle 66.0°

Seat angle 73.5°

Every size is drawn to the same scale, in millimeters. Explanatory schematic on an assumed 20″ wheel; exact published values are in the table below.

Size Reach Stack

Complete manufacturer geometry table 3 published sizes

Complete manufacturer geometry by size
Measurement
Reachmm	324	313	359
Stackmm	461	548	594
Top tube lengthmm	464	476	547
Seat tube lengthmm	260	320	370
Head tube lengthmm	110	105	105
Head tube angle	66°	66°	65°
Seat tube angle	73°	73.5°	74°
Chainstay lengthmm	345	420	437
Wheelbasemm	621	1026	1124
Front centermm	276	606	687
Bottom bracket dropmm	8	12	12
Standover heightmm	570	690	736
Fork rakemm	—	50	51
Stack/reach ratio	1.42	1.75	1.66

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

Specifications

Frame and fork

Intended fit: Unisex
Frame material: Aluminum
Bicycle weight: 11.1 kg

24.5 lb

Suspension

Suspension configuration: Full suspension
Front travel: 120 mm
Rear travel: 100 mm

Drivetrain

Derived by Bikelake

Front chainrings: 1
Smallest chainring: 34
Largest chainring: 34
Rear sprockets: 1
Smallest sprocket: 15
Largest sprocket: 15
Lowest gear: 45.3 in
Highest gear: 45.3 in

Wheels and brakes

Wheel configuration: Same size
Brake type: Hydraulic disc

Fit and controls

Seatpost: Rigid seatpost
Shifting: No shifting

Additional specifications

Fork spring: Air
Tire width: 2.35″
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

45.3 gear inches

This value is above the central range for this class.

Cohort: Youth / General youth Model year: 2018
Sample: 137 bicycles with this information
Coverage: 71.3% of the class

Highest gear

45.3 gear inches

This value is within the central range for this class.

Cohort: Youth / General youth Model year: 2018
Sample: 137 bicycles with this information
Coverage: 71.3% of the class

Gearing

Estimated speeds at 80 rpm

Lowest gear: 17.4 km/h
Highest gear: 17.4 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: 45.3–45.3 gear inches
Class reference (p10–p90): 17.9–78.0 gear inches; The band runs from p10 for the lowest gear to p90 for the highest gear.

Cohort: Youth / General youth Model year: 2018
Lowest gear: 137 bicycles with this information, 71.3% of the class
Highest gear: 137 bicycles with this information, 71.3% 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 2018 builds

Differences across 2018 builds
Specification	This bicycle Commençal Supreme 20	Commençal Supreme 24	Commençal Supreme DH	Commençal Supreme DH 29	Commençal Supreme DH V4.2	Commençal Supreme DH V4.2 Essential
Frame
Bicycle weight	11.1 kg	13.3 kg	16.5 kg	16.5 kg	Not informed	17.5 kg
Frame weight	Not informed	Not informed	Not informed	Not informed	4.1 kg	Not informed
Suspension
Front travel	120 mm	150 mm	Not informed	Not informed	Not informed	200 mm
Rear travel	100 mm	140 mm	205 mm	205 mm	Not informed	220 mm
Drivetrain
Front chainrings	1	1	1	1	Not informed	1
Smallest chainring	34	32	34	34	Not informed	34
Largest chainring	34	32	34	34	Not informed	34
Rear sprockets	1	11	7	7	Not informed	9
Smallest sprocket	15	Not informed	Not informed	Not informed	Not informed	Not informed
Largest sprocket	15	Not informed	Not informed	Not informed	Not informed	Not informed
Lowest gear	45.3 in	Not informed	Not informed	Not informed	Not informed	Not informed
Highest gear	45.3 in	Not informed	Not informed	Not informed	Not informed	Not informed
Cockpit
Shifting	No shifting	Mechanical	Mechanical	Mechanical	Mechanical	Mechanical
Other specifications
Fork spring	Air	Not informed	Air	Air	Not informed	Air
Tire width	2.35″	2.35″	2.5″	2.5″	Not informed	2.5″
Wheel size	20″	24″	29″	29″	27.5″	27.5″
Bottom bracket standard	Not informed	Not informed	BB86/BB92	BB86/BB92	BB86/BB92	BB86/BB92
Rear shock spring	Not informed	Not informed	Coil	Coil	Not informed	Not informed