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2024 Rocky Mountain

Instinct C Frameset

A 27.5″ / 29″ carbon frame full suspension trail frameset.

Manufacturer Price

$3,899
Weight6.8 lbs (frame)  
FrameCarbon
SuspensionFull, 140mm rear
ShockFox Float X Factory
Wheels27.5″ / 29″
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Insights
Sizing
XS

5'1" – 5'5"

SM

5'4" – 5'9"

MD

5'7" – 6'0"

LG

5'10" – 6'3"

XL

6'0" – 6'5"

🐐 Estimated

Rider Fit Notes

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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

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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
  • Excellent geometry

  • Great features

  • Impressive weight

  • Heightened support with compression tune CS50

Lows
  • Shock tune not to liking for most testers

  • Requires re-valve for ideal performance

  • Difficult to access latter travel with stiffer spring

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.

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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

SMOOTHWALL™ Carbon | Full Sealed Cartridge Bearings | Press Fit BB | Internal Cable Routing | 2-Bolt ISCG05 Tabs | RIDE-4™ Adjustable Geometry | 2 Position Axle | 29" = 150mm | 27.5" = 140mm SMOOTHWALL™ Carbon Rear Triangle

ColorGrey / Beige

Shock

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

Travel140mm

Headset

FSA Orbit NO.85 Reach Adjust| 0mm Cups Installed | +/- 5mm Cups Included | Durable Sealed Stainless 36°x45° Bearings | 30.2mm x 41mm x 7.1mm Upper | 40mm x 51.8mm x 7.5mm Lower | 1.5" Crown Race

Rider Notes
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First added March 6

Last updated June 1