2024 Rocky Mountain

Altitude C99 Sram

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

$10,999
Weight33.5 lbs  
FrameCarbon
SuspensionFull, Electronic, 160 / 170mm
ForkRockShox ZEB Ultimate Flight Attendant
ShockRockShox Super Deluxe Flight Attendant
Wheels27.5″ / 29″ Carbon
Drivetrain1 × 12 Electronic
GroupsetX0 Eagle Transmission, X01 Eagle AXS
Power MeterIntegrated
BrakesHydraulic Disc
SeatpostDropper
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Insights
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

Altitude C99 Sram

26 mph

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Highest gear

(descending)

Spec Level

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

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Sizing
SM

5'0" – 5'6"

MD

5'3" – 5'10"

LG

5'7" – 6'3"

XL

6'0" – 6'6"

Rider Fit Notes

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Price History
Reviews
BIKE Magazine
Rocky Mountain Launches new Altitude

Apr 2024

A new enduro bike with a (sort of) new suspension platform from the Canadian brand.

Read Review

Bikerumor
Rocky Mountain Bikes Reintroduces LC2R Suspension on the 2024 Altitude

Apr 2024 · Steve Fisher

Rocky Mountain Bikes revives their LC2R suspension linkage for the 2024 Altitude enduro bike, plus give it a reach adjust headset.

Read Review

NSMB
2024 Rocky Mountain Altitude C70 Coil

Apr 2024

Today Rocky Mountain debuts the newest Altitude, a completely redesigned 160mm travel enduro bike intended to win an EWS championship or make your friends feel slow on their favourite trail. Upon first glance, purists would say this looks nothing like a Rocky Mountain, as the Low Centre Counter Rotating platform, AKA LC2R, replaces the 4-bar Smoothlink suspension design. Old Man Mountain Bike would recall Rocky using the LC2R platform on mid-2000s Slayer and Flatline models, shelved until now. Strands of LC2R DNA floating in the aether of Rocky Mountain’s Development Center in North Vancouver are reconceptualized as a tool worthy of surpassing the previous Altitude in every facet. This is no small feat, as Jesse Melamed, ALN, and Remi Gauvin all stood on EWS/EDR podiums aboard the previous Altitude, so what kind of changes are we talking about? Well, nearly everything…

Read Review

Pinkbike
First Ride: Rocky Mountain's 2024 Altitude Has a Completely Revised Frame Design

Apr 2024 · Dario DiGiulio

The brand's enduro sled is back with more than a hard-to-miss paint job.

Read Review

Revolution Mountain Bike Magazine
[R]eviewed: Rocky Mountain Altitude ‘Carbon 90 Rally Edition’

Feb 2024

When we think of Rally, images of sideways Subarus and Dakar 450's come to mind. Vehicles capable of haulin' arse over gnarly terrain all while looking so damn good in the process. It's an aesthetic that has made its way into the Rocky Mountain range of bikes over the years and 2024 ain't no different. We take a deep dive into Rocky Mountains new Altitude C90 Rally edition to see if it lives up to it's namesake. Review: Blake Nielsen  [...]

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Enduro Mountainbike Magazine
Rocky Mountain Altitude C90 Rally Edition 2021 – In our big enduro bike comparison test 2022

Dec 2021 · Peter Walker

The Rocky Mountain Altitude C90 enters the “Best Enduro Bike of 2022” group test as the defending champion. But can it claim victory for the second year in a row and convince our test crew with its all-round qualities and smart details?

Highs
  • Adjustable chainstay length has pronounced effect on handling

  • Excellent suspension

  • Superb all-round qualities on all trails

Lows
  • Long seat tube and short insertion depth

  • No storage compartment or tool strap mounts

Read Review

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!

Read Review

Geometry
99 Spokes on YouTube99 Spokes on YouTube
Specs
Build
Frame

SMOOTHWALL™ Carbon | Full Sealed Cartridge Bearings | BSA Bottom Bracket | Internal Cable Routing | 2-Bolt ISCG05 Tabs | RIDE-4™ Adjustable Geometry |160mm Travel. SMOOTHWALL™ Carbon Rear Triangle

BB StandardBSA, 73mm, Threaded

Hanger StandardUDH

ColorBlack / Purple/silver

Fork

RockShox Zeb Ultimate Flight Attendant 170mm | 27.5 = 38mm Offset | 29 = 44mm Offset

Travel170mm

Spring TypeAir

Shock

RockShox Super Deluxe Ultimate Flight Attendant HBO | Sealed Bearing Eyelet | 40x10mm F Hardware | SM = 210x55mm | MD - LG - XL = 230x60mm | Size-Specific tune in FAQ

Travel160mm

Spring TypeAir

Bottom Bracket

SRAM DUB BSA 73 Wide

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

Stem

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

Handlebar

Race Face Next R | 780mm Width | 35mm Rise | 8° Backsweep | 5° Upsweep | 35mm Clamp

Saddle

WTB Volt Race 142

Seatpost

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

TypeDropper

Grips

ODI Elite Pro Lock On

Groupset
Rear Derailleur

SRAM X0 Transmission Wireless

Crank

SRAM X0 Transmission Alloy | 32T | DUB Spindle | Power Meter Sensor | Crankarm Length: XS -SM = 165mm | MD - XL = 170mm

Power Meter

SRAM X0 Transmission Alloy | 32T | DUB Spindle | Power Meter Sensor | Crankarm Length: XS -SM = 165mm | MD - XL = 170mm

Shifters

SRAM AXS Wireless Pod Controller

Cassette

SRAM X0 Transmission 10-52T

Chain

SRAM XO Flattop T-Type

Brakes

SRAM Code RSC 4 Piston | Metal Pads

TypeHydraulic Disc

Wheels
Rims

Race Face Era Carbon

Spokes

Race Face Straight Pull | Butted 2.0-1.65 | Alloy Nipples

Front Hub

Race Face Vault

Rear Hub

Race Face Vault

Tires

F: Maxxis Assegai 2.5 WT 3C MaxxGrip EXO+ Tubeless Ready // R: Maxxis Minion DHR II 2.4 WT 3C MaxxTerra DD Tubeless Ready // Cushcore Trail Tire Inserts | Lightweight | Tire & Rim Protection

Rider Notes
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Last updated May 11