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2021 Rocky Mountain

Altitude Carbon 99

A 27.5″ / 29″ carbon frame full suspension enduro bike with ultra high-end components.
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Manufacturer Price

$10,449
Weight29.6 lbs  
FrameCarbon
SuspensionFull, 160 / 170mm
ForkRockShox Lyrik Ultimate
ShockRockShox Super Deluxe Ultimate
Wheels27.5″ / 29″ Carbon
Drivetrain1 × 12 Electronic
GroupsetX01, X01 Eagle AXS
BrakesSRAM Code RSC Hydraulic Disc
SeatpostDropper
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Insights
Ride Feel

Based on frame geometry and build specs.

Terrain
easyextreme
Handling
nimblestable
Altitude Carbon 99
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)

29 mph

Altitude Carbon 99

26 mph

Similar Bikes

Highest gear

(descending)

Reviews

Summary

The Rocky Mountain Altitude is a versatile enduro bike praised for its adjustable geometry, supple suspension, and excellent traction on difficult trails. It excels in descending and rough terrain, though some reviews note it could be more efficient on climbs. The bike's Ride 9 system allows for significant tuning, catering to a wide range of preferences and riding styles.

Pros
  • Adjustable geometry with Ride 9 system

  • Supple and effective suspension

  • Excellent traction and stability on difficult trails

  • Versatile with many spec levels and price points

  • Clean, fully tubed internal cable routing

Cons
  • Less-than-super-efficient climbing prowess

  • Overwhelming number of Ride-9 settings

  • Rear shock requires extra pressure compared to factory recommendations

Key Quotes
The suspension feels uniquely supple, fast, and totally unencumbered, soaking up bumps better than Jonny Moseley in his prime.
BIKE Magazine logoBIKE Magazine
The Altitude’s leaner looks give you a sense that this bike would be pretty good at climbing and trail rambling too.
Bikerumor logoBikerumor
This bike was a treat in a lot of different scenarios.
Jeff Kendall-Weed logoJeff Kendall-Weed

Feedback?

View all reviews

NSMB
2022 Rocky Mountain Altitude Powerplay Carbon 70 Review

Mar 2022

RMB's torquey Dyname 4.0 motor and "mid-high pivot" platform separate the Altitude Powerplay from the herd...

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Pinkbike
First Look: Rocky Mountain Updates Altitude & Instinct Powerplay Models with Dyname 4.0 motor

Oct 2021 · Seb Stott

The new motor boasts the same impressive power, but with more refinement, less drag and less weight.

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Loam Wolf
Review: Rocky Mountain Altitude Powerplay C90 Rally Edition

Jun 2021 · Drew Rohde

Rocky Mountain’s Altitude Powerplay can keep up with aggressive riders wanting to push hard yet is equally at home cruising trails under riders who just want to explore and have fun.

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Mountain Bike Action
Mountain Bike Action Bike Test: Rocky Mountain's Altitude Enduro Machine

Jan 2021 · McCoy

Transitioning out the gate and going down the trail was a blast!

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Enduro Mountainbike Magazine
Rocky Mountain Altitude Rally Edition review – The best enduro bike of 2021

Jan 2021 · Christoph Bayer

This is what winners look like! The Rocky Mountain Altitude is the winner of our big enduro bike group test and thus the best enduro bike of 2021. What makes the Altitude so good?

Highs
  • Superb control in the roughest terrain

  • Brilliant combination of traction and pop

  • Balanced handling and well-specced

  • Variable geometry

Lows
  • Slower climber

  • Hefty price

Read Review

Jeff Kendall-Weed
The review I DIDN’T want to publish: the Rocky Mountain Altitude!!!

Jan 2021

The 2021 Rocky Mountain Altitude is an exceptional enduro bike, and I was blown away at how well I got along with it.

Read Review

Bikerumor
Long Term Review: Rocky Mountain’s 2021 Altitude Carbon 70 29 is a long-travel quiver killer

Oct 2020 · Steve Fisher

Rocky Mountain Bikes' 2021 Altitude Carbon 70 29 offers an adjustable ride that handles everything from 'long-travel trail' to 'full enduro'.

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BIKE Magazine
First Impressions: 2021 Rocky Mountain Altitude Carbon 70

Sep 2020

The longest-travel, biggest-wheeled, highest-speed, most capable Rocky Mountain Altitude to date.

Read Review

Geometry
Specs
Build
Frame

SMOOTHWALL™ Carbon. Full Sealed Cartridge Bearings. Press Fit BB92. Internal Cable Routing. 2-Bolt ISCG05 Tabs. RIDE-9™ Adjustable Geometry. 2 Position Axle. 160mm Travel. SMOOTHWALL™ Carbon Rear Triangle

BB StandardBB86/BB92, Press Fit

Fork

RockShox Lyrik Ultimate RC2 170mm | 27.5 = 37mm Offset | 29 = 42mm Offset

Travel170mm

Spring TypeAir

Shock

RockShox Super Deluxe Ultimate | Sealed Bearing Eyelet | 25x8mm F Hardware | SM = 210x55mm | MD - LG - XL = 230x60mm | Size-Specific tune in FAQ

Travel160mm

Bottom Bracket

SRAM BB92 DUB

Headset

Cane Creek Hellbender 70 | 36°x45° Bearings | 30.15mm x 41mm x 6.5mm Upper | 40mm x 52mm x 6.5mm Lower | 1.5" Crown Race

Stem

Race Face Turbine R | 0° Rise | All Sizes = 40mm

Handlebar

Race Face Next R | 780mm Width | 20mm Rise | 8° Backsweep | 4° Upsweep | 35mm Clamp

Saddle

WTB Volt Team | Titanium Rails | 142mm Width

Seatpost

Rock Shox Reverb AXS Wireless Post | SM = 125mm | MD = 150mm | LG - XL = 170mm

TypeDropper

Grips

Ergon GE1 EVO Lock On

Groupset
Rear Derailleur

SRAM X01 Eagle AXS Wireless

Crank

SRAM X01 Carbon Eagle | 27.5 = 34T | 29 = 32T | 3mm Offset Chainring | 28.99mm Spindle | 170mm Crank length

Shifters

SRAM Eagle AXS

Cassette

SRAM XG-1295 10-52T

Chain

SRAM XX1 Eagle

Brakes

SRAM Code RSC 4 Piston | Metal Pads | Centerline 200mm F Rotor | Centerline 180mm R Rotor

TypeSRAM Code RSC Hydraulic Disc

Wheels
Rims

Race Face Next R 31 Carbon Wheelset | Tubeless Ready - Tape | Valves Incl | 28H

Front Hub

Race Face Vault Boost 15mm

Rear Hub

Race Face Vault Boost 148mm | RMB Axle | 163mm x 12mm x 1.5mm

Tires

F: Maxxis Assegai 2.5 WT 3C MaxxGrip EXO+ Tubeless Ready // R: Maxxis Minion DHR II 2.4 WT 3C MaxxTerra EXO+ Tubeless Ready

Rider Notes
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First added September 11

Last updated January 12

Not listed for 1,977 days