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2018 Commençal

SUPREME 20

A 20″ aluminum frame general youth bike with tektro hydraulic disc brakes.
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Manufacturer Price

$1,699
Weight24.5 lbs  
FrameAluminum
SuspensionFull, 100 / 120mm
ShockRockShox Monarch R
Wheels20″ Aluminum
DrivetrainSingle-speed
BrakesTektro Hydraulic Disc
Where to Buy
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Insights
Gearing

A bike with lower gearing will be easier to ride up steep hills, while a higher top end means it will pedal faster down hills.

Lowest gear

(climbing)

13 mph

SUPREME 20

18 mph

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Highest gear

(descending)

Reviews

Summary

The Commençal Supreme excels in downhill and enduro performance with its innovative HPP suspension system, providing exceptional bump absorption, stability, and grip on rough terrain. However, it can feel heavy and less efficient on flatter trails, with some models experiencing pedal kickback. It is praised for its value and race-ready capabilities but may not suit all riders due to its specialized nature.

Pros
  • Incredible bump taming and high-speed performance

  • Innovative HPP suspension design for stability and grip

  • Good value with solid components

  • Available in multiple wheel sizes for versatility

  • Ready for racing out of the box

Cons
  • Heavy and draggy when pedaling

  • Short reach and less playful handling

  • Pedal kickback in some models

  • Requires adaptation to maximize performance

  • Not suitable for all terrains or rider preferences

Key Quotes
The capacity of the rear end to swallow up punishment is gob smacking.
BikeRadar logoBikeRadar
It’s a bike that finds it easy to make up speed in rough areas all with unparalleled stability. It’s trademark: speed.
Dirt Mountainbike logoDirt Mountainbike
Charging into rough rock gardens and braking bumps is unreal - I tried a section in Pila faster and faster, and the Supreme was the first bike I have ever ridden that genuinely became easier to handle the harder I pushed it.
Pinkbike

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Pinkbike
Review: Commencal's Supreme DH 29 is an Unflinching Race Weapon

Jul 2018 · Paul Aston

The Supreme was ready to ride out of the box, I changed down a spring weight on the Fox DHX2 shock from 450lb to 400lb, pumped up the fork to 76psi, opened up most of the compression front and rear, and set the rebound on the fast side with a couple of extra clicks on the shock's HSR to for a little more control under big hits..

Highs
  • Unbeatable bump and high-speed performance

  • Ready to go racing out of the box

  • Great price and specification

Lows
  • Requires some adaptation to get the best out of the bike

  • Falls off chairlifts and shuttle trailers and might not fit in your car or garage

  • May make you ride too fast for your own safety

Read Review

Dirt Mountainbike
Commencal releases Supreme 29 downhill bike

Dec 2017 · Smurf

Hype beast

Read Review

NSMB
Commencal Release Supreme DH 29

Dec 2017

Commencal commits to 29, releasing the big wheeled version of their World Cup proven Supreme DH.

Read Review

MTBR
Commencal Supreme SX first look

Jul 2017 · Saris Mercanti

While most 180mm bikes are targeted towards the gravity racing realm, Commencal took a different approach with the new Supreme SX. - Mtbr.com

Read Review

BikeRadar
Commencal Supreme DH V4 World Cup review

Dec 2016 · Jon Woodhouse

Mind blowing rough terrain performance, but it could do with a bit more length and a diet. Buy if you want to hit the roughest and toughest descents and don’t care about pedalling performance

Highs
  • Incredible bump taming performance with a solid parts package

Lows
  • Short reach, draggy when pedalling and rather hefty too

Read Review

Geometry
Specs
Build
Frame

2018 SUPREME 20, 6066 alloy hydroformed

Fork

RIDE ALPHA Prodigy 20", 120 mm, air spring, 15 mm TA

Travel120mm

Spring TypeAir

Shock

ROCK SHOX MONARCH R 152 x 31 mm

Travel100mm

Bottom Bracket

RIDE ALPHA EB24 73 mm sealed bearings

Headset

RIDE ALPHA ZS44 / ZS56

Stem

NEW RIDE ALPHA, aluminium 6061, 40 mm, 31.8 mm, 0° angle

Handlebar

RIDE ALPHA Kids, Alloy 6061, 0,75" rise, 600 mm, 31.8 mm

Saddle

RIDE ALPHA Kids Pivotal

Seatpost

RIDE ALPHA Kids, alloy Pivotal, 31.6 mm, 300 mm

TypeRigid

Pedals

N/A

Grips

COMMENCAL lock on, soft compound

Groupset
Rear Derailleur

–

Crank

RIDE ALPHA 2 pieces crankset, 34T, 145 mm

Shifters

–

Cassette

15T sprocket

Chain

YABAN, single speed

Chain Guide

N/A

Brakes

NEW TEKTRO HD-M M282, kids specific, hydraulic disc brake 180 mm / 160 mm

TypeTektro Hydraulic Disc

Brake Levers

Tektro HD-M M282

Wheels
Rims

ALEXRIMS MD30, 32 holes, 30 mm inner width

Spokes

Pillar, stainless steel, 2mm, black, Nylock, 32 count front and rear

Front Hub

FORMULA DH, 32 holes

Rear Hub

FORMULA DH, 32 holes

Tires

KENDA KINETICS 20" x 2.35"

Rider Notes
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First added August 7

Last updated September 3

Not listed for 2,828 days