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2024 Rocky Mountain

Instinct Alloy 50

A 27.5″ / 29″ aluminum frame full suspension trail bike with high-end components.
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Manufacturer Price

$4,599
FrameAluminum
SuspensionFull, 140 / 150mm
ForkFox Performance Float 36
ShockFox Float X Performance
Wheels27.5″ / 29″ Aluminum
Drivetrain1 × 12
GroupsetXT
BrakesShimano Hydraulic Disc
SeatpostDropper
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Insights
Ride Feel

Based on frame geometry and build specs.

Terrain
easyextreme
Handling
nimblestable
Instinct Alloy 50
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)

28 mph

Instinct Alloy 50

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 Instinct model range

View Comparison
Sizing
XS

4'10" – 5'3"

SM

5'0" – 5'6"

MD

5'3" – 5'10"

LG

5'7" – 6'3"

XL

6'0" – 6'6"

Rider Fit Notes

None yet.

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Price History
Reviews

Summary

The Rocky Mountain Instinct is a versatile enduro bike praised for its adjustable geometry, refined suspension kinematics, and confident handling on technical terrain. It offers a wide range of customization options, including the Ride-4 system and reach adjust headset, making it suitable for varied riding styles. However, some reviews note issues with stock shock tuning and component choices like under-powered brakes and a press-fit bottom bracket.

Pros
  • Wide range of geometry adjustments

  • Refined frame geometry and suspension kinematics

  • More adjustability to suit varied terrain or riding styles

  • Versatile and confident bike in most terrain

  • Excellent suspension performance

Cons
  • Under-powered brakes and fork

  • Shock tune not to reviewers' liking

  • Press fit BB92 bottom bracket may not be preferred by all

  • Hubs could be better

  • Not the most inspiring climber

Key Quotes
Rocky Mountain Bikes’ Instinct has always been an ideal choice for a do-it-all trail bike
Bikerumor logoBikerumor
The new Instinct is RMB’s most adjustable MTB yet
Bikerumor logoBikerumor
It was intuitive and confidence inspiring.
NSMB logoNSMB
This is a borderline enduro bike, but one I’d be happy to own for just about everything.
Singletrack World logoSingletrack World
Bike riding happens in the real world, and that's where the Instinct loses its edge.
Pinkbike

Feedback?

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99 Spokes
Rocky Mountain Instinct A10

Sep 2024

The Rocky Mountain Instinct A10 offers great adjustability and ride quality but falls short in component quality for its price.

Highs
  • Wide range of geometry adjustments

  • Fun and intuitive on-trail demeanor

Lows
  • Under-powered brakes and fork

  • Heavy (size large weighed 36.2 lbs)

Read Review

Mountain Bike Action
Rocky Mountain Instinct Review: Trail Versatility Refined - Mountain Bike Action Magazine

Jul 2025 · Ron Koch

We test the 2025 Rocky Mountain Instinct C70 Shimano—an adjustable 150/140mm trail bike built for versatility, stability, and confident descending.

Read Review

Pinkbike
Field Test Bonus: Can We Unlock the Rocky Mountain Instinct's Potential?

Nov 2024 · Henry Quinney

Three shocks and a whole bunch of laps to try to improve the Instinct.

Highs
  • Good geometry

  • Good features

  • Good adjustability

  • Impressive weight

Lows
  • Shock tune not to liking

  • Limited compression damping adjustment

  • Difficulty accessing latter stages of travel with higher spring rate

Read Review

Loam Wolf
The New Rocky Mountain Instinct Powerplay SL

Oct 2024

The new Instinct Powerplay SL packs a punch in a lightweight package. Powered by the all-new Dyname S4 Lite drive system.

Read Review

Singletrack World
Rocky Mountain Instinct C70: First Ride Review

Mar 2024 · Tim Wild

Rocky Mountain Instinct at a glance: longer chainstays, steeper seat angle, longer dropper posts plus adjustable reach and chainstay length.

Read Review

Bikerumor
Rocky Mountain’s New Instinct is a Highly Adjustable Quiver Killer

Mar 2024 · Steve Fisher

Rocky Mountain refines the Instinct into their 'holy grail' do-everything trail bike, adding a reach adjust headset for 2024.

Read Review

NSMB
2024 Rocky Mountain Instinct

Mar 2024

Rocky's super-capable trail bike sees updates and refinements to frame features, geo, and suspension kinematics. We've got a first look and details.

Read Review

Singletracks
The 2024 Rocky Mountain Instinct Adds Frame Storage, Adjustability, and Aggressive Geo [Review]

Mar 2024 · Matt Miller

The latest Rocky Mountain Instinct trail bike is a versatile, do-everything bike and technical trail smashers will love it most.

Highs
  • Versatile and confident bike in most terrain

  • Stiff carbon frame holds its line

  • Exceptional suspension performance

Lows
  • Hubs could be better

  • Not the most inspiring climber

Read Review

Geometry
Specs
Build
Frame

FORM™ Alloy | Full Sealed Cartridge Bearings | Press Fit BB | Internal Cable Routing | 2-Bolt ISCG05 Tabs | RIDE-4™ Adjustable Geometry | 2 Position Axle | 140mm Travel | FORM™ Alloy Rear Triangle

ColorsGrey / Beige; Brown / Yellow/black

Fork

Fox 36 Float EVOL GRIP Performance Series 150mm | 27.5 = 37mm Offset | 29 = 44mm Offset

Travel150mm

Spring TypeAir

Shock

Fox Float X Performance | Sealed Bearing Eyelet | 20x8mm F Hardware | XS - SM = 190x45mm | MD - LG - XL = 210x52.5mm | Size-Specific tune in FAQ

Travel140mm

Bottom Bracket

Shimano SM-BBMT500

Headset

FSA ZS56/66 Reach Adjust | 0mm Cups Installed | +/- 5mm Cups Included | Sealed Stainless 36°x45° Bearings | 30.2mm x 41mm x 6.5mm Upper | 40mm x 51.8mm x 8.0mm Lower | 1.5" Crown Race

Stem

Rocky Mountain 35 AM | 0° Rise | All Sizes = 40mm

Handlebar

Rocky Mountain AM | 760mm Width | 25mm Rise | 9° Backsweep | 5° Upsweep | 35 Clamp

Saddle

WTB Volt Race 142 | Cromoly rails

Seatpost

X Fusion Manic Composite 30.9mm | XS = 125mm | SM = 150mm | MD = 170mm | LG - XL = 200mm

TypeDropper

Grips

ODI Elite Pro Lock On

Groupset
Rear Derailleur

Shimano XT

Crank

Race Face Ride Cinch | 32T | 24mm Spindle | Crankarm Length: XS -SM = 165mm | MD - XL = 170mm

Shifters

Shimano XT

Cassette

Shimano SLX 10-51T 12spd

Chain

Shimano M6100

Brakes

Shimano MT6120 4 Piston | Metal Pads

TypeShimano Hydraulic Disc

Wheels
Rims

WTB KOM Team i30 TCS 2.0 | 28H | Tubeless Set Up | Sealant Incl

Spokes

2.0 Stainless

Front Hub

Novatec D791SB Sealed Boost 15mm

Rear Hub

Shimano XT Boost 148mm

Tires

Maxxis Minion DHF 2.5 WT 3C MaxxTerra EXO+ Tubeless Ready | Maxxis Minion DHR II 2.4 WT 3C MaxxTerra EXO+ Tubeless Ready | Tubeless Set Up | Sealant Incl

Rider Notes
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First added November 3

Last updated June 27