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2024 YT Industries

Decoy CORE 4 29

A 29″ carbon frame full suspension trail e-bike with high-end components.
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Manufacturer Price

$7,999
Weight51.8 lbs  
FrameCarbon
SuspensionFull, 145 / 150mm
ForkRockShox ZEB Ultimate
ShockRockShox Vivid Ultimate
Wheels29″ Aluminum
Drivetrain1 × 12 Electronic
GroupsetGX Eagle Transmission, GX Eagle AXS
MotorShimano 250W 85Nm mid-drive
Battery720Wh
BrakesHayes Dominion A4 Hydraulic Disc
SeatpostDropper
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Insights
Ride Feel

Based on frame geometry and build specs.

Terrain
easyextreme
Handling
nimblestable
Decoy CORE 4 29
Other Trail 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)

31 mph

Decoy CORE 4 29

26 mph

Similar Bikes

Highest gear

(descending)

Spec Level

Based on build material and quality level of the frame, fork, wheelset, groupset, suspension system, and more.

Compare the full Decoy model range

View Comparison
Sizing
MD

5'4" – 5'9"

LG

5'7" – 6'0"

XL

5'11" – 6'4"

XXL

6'2" – 6'7"

Rider Fit Notes

None yet.

Do you have this bike? Help other riders make a decision about which size will work for them by sharing your own size and fit notes.

Reviews

Summary

The YT Industries Decoy is a highly capable enduro e-MTB that offers a fun and engaging ride across a variety of trails. It's praised for its balanced downhill performance, efficient power delivery, and well-rounded suspension. While it excels in agility and value, some reviews note its shorter wheelbase and reach as limitations for steep terrain.

Pros
  • Agile, playful handling

  • Great value for money

  • Well-picked components

  • Fun on almost any trail

  • Top spec Fox Factory suspension

Cons
  • Short wheelbase and reach

  • Alloy rear end adds to the overall weight

  • Not as sure-footed on particularly steep terrain

Key Quotes
The YT Decoy is still one of the around.
Bike Perfect logoBike Perfect
Its suspension feels bottomless.
BikeRadar logoBikeRadar
This is without a doubt one of the very best e-mountain bikes currently available.
off.road.cc logooff.road.cc

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off.road.cc
YT Industries Decoy SN 29 Core 4 e-MTB review

Sep 2025

With lesser travel than its MX sibling, and some geometry tweaks, YT Industries has boiled down its Super Natural formula to create the Decoy SN 29. The result is an incredibly accessible and easy-to-ride machine that seriously delivers on the fun factor over a broad variety of terrain. Although it doesn’t hold back when it comes to capability, its bottom bracket is pedal-strikingly low, and I would really appreciate a YT-approved ability to run a mullet wheel size.

Read Review

Enduro Mountainbike Magazine
The YT DECOY CORE 4 – In Our Group Test for the Best Bike Park Bike

Sep 2025 · Benedikt Schmidt

Is the YT DECOY the perfect bike park rig? We tested it to find out.

Highs
  • Exceptional composure on rough descents

  • Robust, trail-ready spec

  • Built-in uplift thanks to the powerful Bosch motor ;)

Lows
  • Sluggish and lacks agility on flatter trails

  • Internally-routed cables rattle in rough terrain

Read Review

BikeRadar
YT Decoy SN 29 Core 4 review: this is the eMTB that could tempt me to go electric | BikeRadar

Apr 2025 · Tom Marvin

YT's new Decoy SN 29 is an easy-riding mid-powered electric mountain bike that could tempt me into assisted riding.

Highs
  • Natural feeling motor with subtle but effective assistance

  • Bike feels right at home when you first jump on it

  • Decent value in a world of 13k e mt bs

Lows
  • Fazua ring controller feels flimsy

  • Slightly harsh front end

Read Review

E-Mountainbike Magazine
New YT DECOY SN 29 CORE 4 CF on test – Duck yeah!

Apr 2025 · Benedikt Schmidt

160/140 mm of travel, 29” wheels and a 480 Wh battery – the new YT DECOY SN 29 CORE 4 CF aims to establish itself as a the ultimate trail all-rounder, retailing at € 8,999. But how does it fare on the trail?

Highs
  • Successful blend of composure and agility

  • High-quality spec

  • Playful handling with plenty of speed and fun

Lows
  • Not a specialist for technical climbs

  • Boost mode only offers short bursts of help on steep ramps

Read Review

Pinkbike
Review: YT Decoy SN MX Core 4 CF – Less Power, More Handling

Sep 2024 · Ralf Hauser

The Decoy SN is a mid-weight eMTB that boasts impressively predictable manners on any type of trail.

Highs
  • Dialed supportive suspension.

  • Modern geometry with short seat tube.

  • Great all-round capabilities.

  • Quiet and strong motor for its size.

  • Great spec.

Lows
  • Battery not removable.

  • Lower than listed bottom bracket height needs extra attention.

  • No display with real battery percentage.

Read Review

Bike Perfect
YT Decoy Core 4 review – playful mullet e-MTB

Jan 2024 · Richard Owen

The Decoy's frame may have been around for a while now, but there's still lots to love about this lively MX e-MTB

Highs
  • Agile, playful handling

  • Bigger battery equals more ride time

  • Light for a big battery, big motor bike

  • Top spec Fox Factory suspension

  • Geometry adjusting flip-chip

Lows
  • Short wheelbase and reach

  • Bigger battery equals more weight

  • Needs tougher tires for rocky trails

Read Review

MBR
YT Decoy Core 4 MX e-bike review - MBR

Apr 2023 · Alan Muldoon

Say hello to the 2023 YT Decoy Core 4 MK 1.35. Okay, so the MK1.35 tag isn’t part of its official title, we added that ourselves. But seeing as YT has managed to increase the potential battery capacity from 540Wh to 720Wh (which is a 35% increase) without having to make wholesale changes to the frame, we think it’s a rather fitting addition. Need to know: A flip-chip in the rearward shock mount offers high and low geometry settings Tested here with the new 720Wh battery, but the bike ships with the old 540Wh battery Mixed wheelsize Full carbon frame comes in five sizes – S to XXL Fox Factory suspension has all the adjustability you need and then some How did YT squeeze in the extra juice without messing up the handing of our e-bike of the Year winner in 2021? It completely redesigned the battery, while maintaining the same fittings and mounting architecture. So yes, the new 720Wh battery is backwards compatible with all Decoy models, bar the size S. It’s currently only available as a standalone product for £899, which, as e-bike batteries go, is competitively priced. Best of all, the potbelly profile of the 720Wh battery allows YT up the cell count while keeping the extra weight as low and central in the bike as possible. On our scales the 720Wh battery weighed 4.57kg, which is 860g heavier than the stock 540Wh battery, and increased the weight of the stock Decoy Core 4 from 23.32kg to 24.18kg. Still pretty competitive, but not as light as you might expect for a full carbon frame and high-end build kit that wants for nothing. Still it’s a moot point as all current Decoys ship with 540Wh batteries as standard, but we’re confident that YT will roll out the bikes with the new battery in the not too distant future. Other than the bigger battery option then, it’s business as usual since we last tested the Decoy. It’s still available in MX (170/165mm travel) and full 29in (150/145mm travel) options and it’s designed around the Shimano Steps EP8 motor, with the smaller, monochrome SE E7000 display. The frame is available in five sizes XS to XXL and while the sizing on the Decoy isn’t the most generous, the size L sporting a rather demure 451mm reach, the Decoy feels all the more manageable and manoeuvrable for it. Also the 50mm stem ensures that the fit never feels cramped, and even slows the steering response down a hair to make it easier to correct course mid turn. Suspension As the flagship bike in the Decoy range, the Core 4 get’s Fox Factory level suspension components, bling Kashima coating and all. The 170mm Fox 38 fork and X2 shock both offer 4-way adjustable damping, so if you want a flatter, more stable ride to the Decoy it is relatively easy to achieve by simply cranking up the compression damping. However, we think the Decoy feels best with a lighter more active approach …Continue reading »

Highs
  • 720Wh battery means more fun, reactive ride, premium build components

Lows
  • 720Wh battery means more money

Read Review

Loam Wolf
YT Decoy MX Core 3 –, 2022 eMTB Shootout

Jun 2022

The YT Decoy MX shreds corners, likes to jump, and it has a comfortable and well rounded suspension tune. It's a fun bike all around! Read more now!

Highs
  • Fun and well-rounded ride

  • Suspension tune overall

  • Looks good

  • Reliable! Stayed tight and quiet

  • Wheel spec

  • Balanced angles (HT and ST)

  • Short, snappy rear end

Lows
  • Sizing

  • 200mm rotor spec

  • Motor felt underpowered

  • Small battery

  • Fell back on chunky DH tracks

Read Review

Geometry
Specs
Build
Fork

ROCKSHOX ZEB ULTIMATE, 29“ | 150 mm | Charger 3 | 15x110mm | 44 mm Offset

Travel150mm

Spring TypeAir

Shock

ROCKSHOX VIVID ULTIMATE, 230 x 60 mm | TouchDown RC2T | R55C26

Travel145mm

Headset

ACROS AZX-260, Block Lock I High Cap I 2 Spacer 5mm I Flat capset

Stem

RENTHAL APEX 35, Length 50mm | 35mm Clamp | Rise +/-6° | Black/Black

Handlebar

RENTHAL AL2014, Width 800mm | Rise 30mm | 7° Back Sweep | 5° Up Sweep | 6061 AL

Saddle

SDG BEL AIR V3 MAX, YT Custom | Width 140 mm I Lux-Alloy Rail

Seatpost

YT POSTMAN V2, Ø 31,6mmI MMX-Remote | Adjustable drop 20/10/5mm | 125 mm (S) I 150 mm (M) | 170 mm (L) | 200 mm (XL) | 230mm (XXL)

TypeDropper

Grips

ODI ELITE MOTION V2.1, Lock On

Groupset
Rear Derailleur

SRAM GX EAGLE TRANSMISSION, 12-speed | T-Type

Crank

SHIMANO FC-EM900, Crank Arm Length 165 mm | HOLLOWTECH

Shifters

SRAM GX Eagle AXS, 12-Speed | 2 Button | MMX

Cassette

SRAM GX EAGLE TRANSMISSION, 10-52T | T-Type | 12-speed

Brakes

HAYES DOMINION A4, Stealth black/grey | Rotor HS2 Ø front 220 mm / rear 203 mm

TypeHayes Dominion A4 Hydraulic Disc

Wheels
Rims

CRANKBROTHERS SYNTHESIS ALLOY E-MTB I9 1/1, Front: Aluminum Rim 29“ | Inner Width 31,5 mm | Front Hub 110 x 15 mm | I9 1/1, Rear: Aluminum Rim 29“ | Inner Width 31,5 mm | Rear Hub 148 x 12 mm | Freehub I9 1/1 XD

Tires

FRONT: MAXXIS MINION DHF | REAR: MAXXIS MINION DHR II, Front: 29’’ x 2.5 WT I 3C MaxxTerra I EXO+ I TR, Rear: 29’’ x 2.4 WT | 3C MaxxTerra I Double Down | TR

Electric Components
Motor

SHIMANO EP801, Torque 85 NM | Power 250 W I E-TUBE PROJECT APP

Battery

SMP YT CUSTOM, Removable | 720 Wh Capacity | 36 V | 4A Charger

Display

SHIMANO STEPS SC-EM800, Color I 35 mm

Rider Notes
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First added July 17

Last updated February 15

Not listed for 468 days