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2021 Commençal

CLASH JR

A 27.5″ aluminum frame mountain youth bike with upper mid-range components and shimano hydraulic disc brakes.

Manufacturer Price

$3,299
Weight15.7 kg  
FrameAluminum
SuspensionFull, 160 / 160mm
ForkRockShox Pike Select+
ShockRockShox Super Deluxe Select
Wheels27.5″ Aluminum
Drivetrain1 × 11
GroupsetX1, Deore
BrakesShimano Hydraulic Disc
SeatpostDropper
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Insights
Ride Feel

Based on frame geometry and build specs.

Handling
nimblestable
CLASH JR
Other Mountain Youth 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)

41 km/h

CLASH JR

Highest gear

(descending)

Sizing
JUNIOR

145cm – 165cm

Rider Fit Notes
  • 160cm, size JUNIOR, Just right
Reviews
Pinkbike
Commencal Reveals New Clash Kids Range

Oct 2021 · COMMENCAL bicycles

The range is made up of four platforms with different wheel sizes: Clash 20, Clash 24, Clash JR (26 inches) and Clash XS (27/26)..

Read Review

NSMB
Dream Builds: Owen Foster's Mix-Wheeled Commencal Clash "Warpig"

Apr 2021

"It's just a 27.5 bike with the wheel I'm used to in front…" Owen Foster playing down the mullet setup of his custom Commencal Clash in our first Dream Builds feature, supported by Ride Wrap.

Highs
  • Long travel sled that takes big brakes

  • Not precious

  • Available as a frame

  • Polished raw metal finish looks great

  • Mixed wheel setup improves maneuverability

  • Fox 36 with Grip2 performs well

  • Öhlins TTX22m shock works great

  • Light pedaling despite heavy weight

  • Titanium cranks are durable

  • Shimano Saints powerful brakes

  • SRAM drivetrain shifts well

  • Best thing: riding it

Lows
  • No bottle cage bosses

  • Dynamic suspension setting not preferred

Read Review

BIKE Magazine
Little Shred Edit: Commencal Clash Kids' Bikes

Jun 2020

This is what Commencal considers taking a break from its recent barrage of new bike releases. Commencal kids' bikes are arguably the best on the market,

Read Review

Rider Notes
CLASH JR rider review

Nov 2025 · Kayden Mcnicholl

good bike overall amazing suspension and geometry brakes are verry touchy only bad things are dropper and gears

Highs
  • suspension and brakes

Lows
  • dropper only has like 100mm of drop and the derailer is having problems

Read Review

Geometry
Specs
Build
Frame

2021 CLASH JR, 160mm travel, 27,5, Alloy 6066, triple butted tubes, T4, T6. Enduro bearings

ColorPearl White / Chrome, Shiny Finish

Fork

ROCKSHOX Pike Select +, 160 mm travel, 27,5, Charger 2 damper, Debonair, rebound, Boost (15 x 110 mm), 46 mm offset

Travel160mm

Spring TypeAir

Shock

ROCKSHOX Super Deluxe Select R, 210 x 55 mm, rebound

Travel160mm

Bottom Bracket

SRAM DUB, Pressfit

Headset

ACROS ZS44 / ZS56, Alloy cups, sealed bearings

Stem

RIDE ALPHA Freeride 40, 40 mm extension, 31,8 mm

Handlebar

RIDE ALPHA R15, 31,8 mm, 760 mm width, 15 mm rise, Alloy 6061

Saddle

COMMENCAL Kids, Steel rails

Seatpost

KS Rage-I, 31,6 mm, 100 mm travel, SouthPaw alloy remote

TypeDropper

Grips

RIDE ALPHA DH, Ultra-soft compound, single clamp, black

Groupset
Rear Derailleur

SHIMANO Deore, 11s

Crank

SRAM X1 1000 Eagle, 155 mm crank arms, DUB, Boost, Chainring: SRAM X1 1000 Eagle 34t, Narrow-Wide

Shifters

SHIMANO Deore, 11s

Cassette

SHIMANO Deore, 11-51t

Chain

KMC X11, 11s

Brakes

SHIMANO MT501, Servo Wave, I-Spec compatible, resin pads, Rotors: SHIMANO SM-RT66 200-180 mm, 6-bolt

TypeShimano Hydraulic Disc

Wheels
Rims

SPANK Spoon 32, 27,5, 32h, 26,7 mm inner width

Front Hub

Rear: FORMULA DC-148A - Front: FORMULA DC-711, Rear: 32h, sealed bearings - Front: 32h, sealed bearings

Rear Hub

Rear: FORMULA DC-148A - Front: FORMULA DC-711, Rear: 32h, sealed bearings - Front: 32h, sealed bearings

Tires

Rear: VEE TIRE CO. FlowSnap - Front: VEE TIRE CO. Snap WCE, Rear: 27.5 x 2.35, Tackee Compound, Synthesis, Tubeless Ready - Front: 27.5 x 2.35, Top 40 Compound, Synthesis, Tubeless Ready

Rider Notes
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First added 30 June

Last updated 28 September

Not listed for 1,707 days