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2018 Commençal

SUPREME SX

A 27.5″ aluminum frame full suspension enduro bike with upper mid-range components.
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Manufacturer Price

$3,499
Weight33.1 lbs  
FrameAluminum
SuspensionFull, 180 / 180mm
ForkRockShox Lyrik
ShockRockShox Super Deluxe
Wheels27.5″ Aluminum
Drivetrain1 × 11
GroupsetTruvativ Descendant, GX
BrakesSRAM Guide RE Hydraulic Disc
SeatpostDropper
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Insights
Ride Feel

Based on frame geometry and build specs.

Terrain
easyextreme
Handling
nimblestable
SUPREME SX
Other Enduro bikes
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)

26 mph

SUPREME SX

26 mph

Similar Bikes

Highest gear

(descending)

Sizing
SM

5'2" – 5'8"

MD

5'6" – 5'11"

LG

5'10" – 6'3"

XL

6'1" – 6'7"

🐐 Estimated

Rider Fit Notes

None yet.

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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 SX 650b Travel 180 mm

BB StandardBB86/BB92, Press Fit

Fork

ROCKSHOX LYRIK RCT3 180 mm, solo air, boost, Bottomless Tokens: None / 2 extra Tokens supplied

Travel180mm

Spring TypeAir

Shock

ROCKSHOX SUPER DELUXE RC3, 230 x 65 mm, 3 positions

Travel180mm

Bottom Bracket

SRAM GXP Press Fit BB92

Headset

RIDE ALPHA, semi integrated, COMMENCAL standard

Stem

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

Handlebar

RIDE ALPHA, Alloy 7075, double butted, 30 mm rise, 780 mm, Ø31,8mm

Saddle

RIDE ALPHA Super Light foam, CrMo rails

Seatpost

ROCKSHOX REVERB STEALTH, 31.6 mm, 125 mm on S/M and 150 mm on L/XL

TypeDropper

Grips

RIDE ALPHA, ergonomic grips, plastic one lock, super soft compound

Groupset
Rear Derailleur

SRAM GX 11 speed

Crank

SRAM DESCENDANT, 32T, direct mount, boost, 170 mm on S/M, 175 mm on L/XL

Shifters

SRAM GX 1 x 11 speed

Cassette

SRAM XG 1150, 10-42, 11 speed

Chain

KMC X11EL-1

Brakes

SRAM GUIDE RE, 200 mm / 200 mm

TypeSRAM Guide RE Hydraulic Disc

Wheels
Rims

MAVIC 427, 32 holes, hookless, tubeless ready, 27 mm inner

Front Hub

FORMULA, 32 holes, sealed bearings

Rear Hub

FORMULA, 32 holes, sealed bearings

Tires

MAXXIS HRII 650 x 2.4 EXO TR front and MAXXIS DHRII 650 x 2.3 EXO TR rear

Rider Notes
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First added August 7

Last updated August 7

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