Altitude Carbon 99
Overview
Intended use: Enduro
Rear travel: 160
Description
Rider support
5 years warranty, transferable to second owners
We believe in our products, that's why we offer 5-year warranty on our frames, extended to second owners. Learn more
Buy online pick-up in store
It’s now possible for riders to purchase a bike directly through Bikes.com and collect it at an authorized Rocky Mountain dealer.
We're here for you
Got questions about our bikes? Our support team and dealers network are here for you.
Specifications
Geometry
Wheel size
RIDE-9/4 POSITION
RIDE-9/4 POSITION
RIDE-9/4 POSITION
View from drive side
| md | lg | xl | |
|---|---|---|---|
| Top Tube Horizontal (mm) | 584 | 610 | 642 |
| Head Tube Angle (deg) | 62.9 | 62.9 | 62.9 |
| Head Tube Length (mm) | 105 | 115 | 130 |
| Seat Tube Angle (deg) | 77 | 77 | 77 |
| Seat Tube Length (mm) | 410 | 440 | 470 |
| Rear Centre (mm) | 440 | 450 | 450 |
| Bottom Bracket Drop (mm) | 29 | 29 | 29 |
| Reach (mm) | 450 | 475 | 505 |
| Stack (mm) | 630 | 639 | 653 |
| Standover Height (mm) | 791 | 797 | 808 |
| Wheelbase (mm) | 1243 | 1282 | 1319 |
Standover height is measured 200 mm in front of the bottom bracket.
View from drive side
| md | lg | xl | |
|---|---|---|---|
| Top Tube Horizontal (mm) | 584 | 610 | 642 |
| Head Tube Angle (deg) | 63.2 | 63.2 | 63.2 |
| Head Tube Length (mm) | 105 | 115 | 130 |
| Seat Tube Angle (deg) | 77.2 | 77.2 | 77.2 |
| Seat Tube Length (mm) | 410 | 440 | 470 |
| Rear Centre (mm) | 440 | 450 | 450 |
| Bottom Bracket Drop (mm) | 25 | 25 | 25 |
| Reach (mm) | 453 | 478 | 508 |
| Stack (mm) | 630 | 639 | 653 |
| Standover Height (mm) | 793 | 801 | 812 |
| Wheelbase (mm) | 1242 | 1282 | 1318 |
Standover height is measured 200 mm in front of the bottom bracket.
View from drive side
| md | lg | xl | |
|---|---|---|---|
| Top Tube Horizontal (mm) | 584 | 610 | 642 |
| Head Tube Angle (deg) | 63.4 | 63.4 | 63.4 |
| Head Tube Length (mm) | 105 | 115 | 130 |
| Seat Tube Angle (deg) | 77.4 | 77.4 | 77.4 |
| Seat Tube Length (mm) | 410 | 440 | 470 |
| Rear Centre (mm) | 440 | 450 | 450 |
| Bottom Bracket Drop (mm) | 22 | 22 | 22 |
| Reach (mm) | 455 | 480 | 510 |
| Stack (mm) | 630 | 639 | 653 |
| Standover Height (mm) | 796 | 803 | 814 |
| Wheelbase (mm) | 1242 | 1281 | 1318 |
Standover height is measured 200 mm in front of the bottom bracket.
View from drive side
| md | lg | xl | |
|---|---|---|---|
| Top Tube Horizontal (mm) | 584 | 610 | 642 |
| Head Tube Angle (deg) | 63.7 | 63.7 | 63.7 |
| Head Tube Length (mm) | 105 | 115 | 130 |
| Seat Tube Angle (deg) | 77.7 | 77.7 | 77.7 |
| Seat Tube Length (mm) | 410 | 440 | 470 |
| Rear Centre (mm) | 440 | 450 | 450 |
| Bottom Bracket Drop (mm) | 18 | 18 | 18 |
| Reach (mm) | 458 | 483 | 513 |
| Stack (mm) | 630 | 639 | 653 |
| Standover Height (mm) | 798 | 806 | 817 |
| Wheelbase (mm) | 1241 | 1281 | 1317 |
Standover height is measured 200 mm in front of the bottom bracket.
View from drive side
| Top Tube Horizontal (mm) | 584 | 610 | 642 |
| Head Tube Angle (deg) | 62.9 | 62.9 | 62.9 |
| Head Tube Length (mm) | 105 | 115 | 130 |
| Seat Tube Angle (deg) | 77 | 77 | 77 |
| Seat Tube Length (mm) | 410 | 440 | 470 |
| Rear Centre (mm) | 440 | 450 | 450 |
| Bottom Bracket Drop (mm) | 29 | 29 | 29 |
| Reach (mm) | 450 | 475 | 505 |
| Stack (mm) | 630 | 639 | 653 |
| Standover Height (mm) | 791 | 797 | 808 |
| Wheelbase (mm) | 1243 | 1282 | 1319 |
Standover height is measured 200 mm in front of the bottom bracket.
View from drive side
| Top Tube Horizontal (mm) | 584 | 610 | 642 |
| Head Tube Angle (deg) | 63.2 | 63.2 | 63.2 |
| Head Tube Length (mm) | 105 | 115 | 130 |
| Seat Tube Angle (deg) | 77.2 | 77.2 | 77.2 |
| Seat Tube Length (mm) | 410 | 440 | 470 |
| Rear Centre (mm) | 440 | 450 | 450 |
| Bottom Bracket Drop (mm) | 25 | 25 | 25 |
| Reach (mm) | 453 | 478 | 508 |
| Stack (mm) | 630 | 639 | 653 |
| Standover Height (mm) | 793 | 801 | 812 |
| Wheelbase (mm) | 1242 | 1282 | 1318 |
Standover height is measured 200 mm in front of the bottom bracket.
View from drive side
| Top Tube Horizontal (mm) | 584 | 610 | 642 |
| Head Tube Angle (deg) | 63.4 | 63.4 | 63.4 |
| Head Tube Length (mm) | 105 | 115 | 130 |
| Seat Tube Angle (deg) | 77.4 | 77.4 | 77.4 |
| Seat Tube Length (mm) | 410 | 440 | 470 |
| Rear Centre (mm) | 440 | 450 | 450 |
| Bottom Bracket Drop (mm) | 22 | 22 | 22 |
| Reach (mm) | 455 | 480 | 510 |
| Stack (mm) | 630 | 639 | 653 |
| Standover Height (mm) | 796 | 803 | 814 |
| Wheelbase (mm) | 1242 | 1281 | 1318 |
Standover height is measured 200 mm in front of the bottom bracket.
View from drive side
| Top Tube Horizontal (mm) | 584 | 610 | 642 |
| Head Tube Angle (deg) | 63.7 | 63.7 | 63.7 |
| Head Tube Length (mm) | 105 | 115 | 130 |
| Seat Tube Angle (deg) | 77.7 | 77.7 | 77.7 |
| Seat Tube Length (mm) | 410 | 440 | 470 |
| Rear Centre (mm) | 440 | 450 | 450 |
| Bottom Bracket Drop (mm) | 18 | 18 | 18 |
| Reach (mm) | 458 | 483 | 513 |
| Stack (mm) | 630 | 639 | 653 |
| Standover Height (mm) | 798 | 806 | 817 |
| Wheelbase (mm) | 1241 | 1281 | 1317 |
Standover height is measured 200 mm in front of the bottom bracket.
View from drive side
| md | lg | xl | |
|---|---|---|---|
| Top Tube Horizontal (mm) | 584 | 610 | 642 |
| Head Tube Angle (deg) | 63 | 63 | 63 |
| Head Tube Length (mm) | 105 | 115 | 130 |
| Seat Tube Angle (deg) | 77 | 77 | 77 |
| Seat Tube Length (mm) | 410 | 440 | 470 |
| Rear Centre (mm) | 440 | 450 | 450 |
| Bottom Bracket Drop (mm) | 38 | 38 | 38 |
| Reach (mm) | 450 | 475 | 505 |
| Stack (mm) | 630 | 639 | 653 |
| Standover Height (mm) | 792 | 798 | 809 |
| Wheelbase (mm) | 1244 | 1283 | 1319 |
Standover height is measured 200 mm in front of the bottom bracket.
View from drive side
| md | lg | xl | |
|---|---|---|---|
| Top Tube Horizontal (mm) | 584 | 610 | 642 |
| Head Tube Angle (deg) | 63.3 | 63.3 | 63.3 |
| Head Tube Length (mm) | 105 | 115 | 130 |
| Seat Tube Angle (deg) | 77.3 | 77.3 | 77.3 |
| Seat Tube Length (mm) | 410 | 440 | 470 |
| Rear Centre (mm) | 440 | 450 | 450 |
| Bottom Bracket Drop (mm) | 34 | 34 | 34 |
| Reach (mm) | 453 | 478 | 508 |
| Stack (mm) | 630 | 639 | 653 |
| Standover Height (mm) | 794 | 801 | 812 |
| Wheelbase (mm) | 1243 | 1283 | 1319 |
Standover height is measured 200 mm in front of the bottom bracket.
View from drive side
| md | lg | xl | |
|---|---|---|---|
| Top Tube Horizontal (mm) | 584 | 610 | 642 |
| Head Tube Angle (deg) | 63.5 | 63.5 | 63.5 |
| Head Tube Length (mm) | 105 | 115 | 130 |
| Seat Tube Angle (deg) | 77.5 | 77.5 | 77.5 |
| Seat Tube Length (mm) | 410 | 440 | 470 |
| Rear Centre (mm) | 440 | 450 | 450 |
| Bottom Bracket Drop (mm) | 31 | 31 | 31 |
| Reach (mm) | 455 | 480 | 510 |
| Stack (mm) | 630 | 639 | 653 |
| Standover Height (mm) | 796 | 803 | 814 |
| Wheelbase (mm) | 1243 | 1282 | 1319 |
Standover height is measured 200 mm in front of the bottom bracket.
View from drive side
| md | lg | xl | |
|---|---|---|---|
| Top Tube Horizontal (mm) | 584 | 610 | 642 |
| Head Tube Angle (deg) | 63.8 | 63.8 | 63.8 |
| Head Tube Length (mm) | 105 | 115 | 130 |
| Seat Tube Angle (deg) | 77.8 | 77.8 | 77.8 |
| Seat Tube Length (mm) | 410 | 440 | 470 |
| Rear Centre (mm) | 440 | 450 | 450 |
| Bottom Bracket Drop (mm) | 27 | 27 | 27 |
| Reach (mm) | 458 | 483 | 513 |
| Stack (mm) | 630 | 640 | 653 |
| Standover Height (mm) | 798 | 806 | 817 |
| Wheelbase (mm) | 1242 | 1282 | 1319 |
Standover height is measured 200 mm in front of the bottom bracket.
View from drive side
| Top Tube Horizontal (mm) | 584 | 610 | 642 |
| Head Tube Angle (deg) | 63 | 63 | 63 |
| Head Tube Length (mm) | 105 | 115 | 130 |
| Seat Tube Angle (deg) | 77 | 77 | 77 |
| Seat Tube Length (mm) | 410 | 440 | 470 |
| Rear Centre (mm) | 440 | 450 | 450 |
| Bottom Bracket Drop (mm) | 38 | 38 | 38 |
| Reach (mm) | 450 | 475 | 505 |
| Stack (mm) | 630 | 639 | 653 |
| Standover Height (mm) | 792 | 798 | 809 |
| Wheelbase (mm) | 1244 | 1283 | 1319 |
Standover height is measured 200 mm in front of the bottom bracket.
View from drive side
| Top Tube Horizontal (mm) | 584 | 610 | 642 |
| Head Tube Angle (deg) | 63.3 | 63.3 | 63.3 |
| Head Tube Length (mm) | 105 | 115 | 130 |
| Seat Tube Angle (deg) | 77.3 | 77.3 | 77.3 |
| Seat Tube Length (mm) | 410 | 440 | 470 |
| Rear Centre (mm) | 440 | 450 | 450 |
| Bottom Bracket Drop (mm) | 34 | 34 | 34 |
| Reach (mm) | 453 | 478 | 508 |
| Stack (mm) | 630 | 639 | 653 |
| Standover Height (mm) | 794 | 801 | 812 |
| Wheelbase (mm) | 1243 | 1283 | 1319 |
Standover height is measured 200 mm in front of the bottom bracket.
View from drive side
| Top Tube Horizontal (mm) | 584 | 610 | 642 |
| Head Tube Angle (deg) | 63.5 | 63.5 | 63.5 |
| Head Tube Length (mm) | 105 | 115 | 130 |
| Seat Tube Angle (deg) | 77.5 | 77.5 | 77.5 |
| Seat Tube Length (mm) | 410 | 440 | 470 |
| Rear Centre (mm) | 440 | 450 | 450 |
| Bottom Bracket Drop (mm) | 31 | 31 | 31 |
| Reach (mm) | 455 | 480 | 510 |
| Stack (mm) | 630 | 639 | 653 |
| Standover Height (mm) | 796 | 803 | 814 |
| Wheelbase (mm) | 1243 | 1282 | 1319 |
Standover height is measured 200 mm in front of the bottom bracket.
View from drive side
| Top Tube Horizontal (mm) | 584 | 610 | 642 |
| Head Tube Angle (deg) | 63.8 | 63.8 | 63.8 |
| Head Tube Length (mm) | 105 | 115 | 130 |
| Seat Tube Angle (deg) | 77.8 | 77.8 | 77.8 |
| Seat Tube Length (mm) | 410 | 440 | 470 |
| Rear Centre (mm) | 440 | 450 | 450 |
| Bottom Bracket Drop (mm) | 27 | 27 | 27 |
| Reach (mm) | 458 | 483 | 513 |
| Stack (mm) | 630 | 640 | 653 |
| Standover Height (mm) | 798 | 806 | 817 |
| Wheelbase (mm) | 1242 | 1282 | 1319 |
Standover height is measured 200 mm in front of the bottom bracket.
View from drive side
| sm | |
|---|---|
| Top Tube Horizontal (mm) | 553 |
| Head Tube Angle (deg) | 63 |
| Head Tube Length (mm) | 100 |
| Seat Tube Angle (deg) | 77 |
| Seat Tube Length (mm) | 365 |
| Rear Centre (mm) | 430 |
| Bottom Bracket Drop (mm) | 24 |
| Reach (mm) | 424 |
| Stack (mm) | 599 |
| Standover Height (mm) | 760 |
| Wheelbase (mm) | 1189 |
Standover height is measured 200 mm in front of the bottom bracket.
View from drive side
| sm | |
|---|---|
| Top Tube Horizontal (mm) | 553 |
| Head Tube Angle (deg) | 63.3 |
| Head Tube Length (mm) | 100 |
| Seat Tube Angle (deg) | 77.3 |
| Seat Tube Length (mm) | 365 |
| Rear Centre (mm) | 430 |
| Bottom Bracket Drop (mm) | 20 |
| Reach (mm) | 427 |
| Stack (mm) | 599 |
| Standover Height (mm) | 763 |
| Wheelbase (mm) | 1189 |
Standover height is measured 200 mm in front of the bottom bracket.
View from drive side
| sm | |
|---|---|
| Top Tube Horizontal (mm) | 553 |
| Head Tube Angle (deg) | 63.5 |
| Head Tube Length (mm) | 100 |
| Seat Tube Angle (deg) | 77.5 |
| Seat Tube Length (mm) | 365 |
| Rear Centre (mm) | 430 |
| Bottom Bracket Drop (mm) | 17 |
| Reach (mm) | 430 |
| Stack (mm) | 599 |
| Standover Height (mm) | 765 |
| Wheelbase (mm) | 1188 |
Standover height is measured 200 mm in front of the bottom bracket.
View from drive side
| sm | |
|---|---|
| Top Tube Horizontal (mm) | 553 |
| Head Tube Angle (deg) | 63.8 |
| Head Tube Length (mm) | 100 |
| Seat Tube Angle (deg) | 77.8 |
| Seat Tube Length (mm) | 365 |
| Rear Centre (mm) | 430 |
| Bottom Bracket Drop (mm) | 13 |
| Reach (mm) | 433 |
| Stack (mm) | 599 |
| Standover Height (mm) | 768 |
| Wheelbase (mm) | 1188 |
Standover height is measured 200 mm in front of the bottom bracket.
View from drive side
| Top Tube Horizontal (mm) | 553 |
| Head Tube Angle (deg) | 63 |
| Head Tube Length (mm) | 100 |
| Seat Tube Angle (deg) | 77 |
| Seat Tube Length (mm) | 365 |
| Rear Centre (mm) | 430 |
| Bottom Bracket Drop (mm) | 24 |
| Reach (mm) | 424 |
| Stack (mm) | 599 |
| Standover Height (mm) | 760 |
| Wheelbase (mm) | 1189 |
Standover height is measured 200 mm in front of the bottom bracket.
View from drive side
| Top Tube Horizontal (mm) | 553 |
| Head Tube Angle (deg) | 63.3 |
| Head Tube Length (mm) | 100 |
| Seat Tube Angle (deg) | 77.3 |
| Seat Tube Length (mm) | 365 |
| Rear Centre (mm) | 430 |
| Bottom Bracket Drop (mm) | 20 |
| Reach (mm) | 427 |
| Stack (mm) | 599 |
| Standover Height (mm) | 763 |
| Wheelbase (mm) | 1189 |
Standover height is measured 200 mm in front of the bottom bracket.
View from drive side
| Top Tube Horizontal (mm) | 553 |
| Head Tube Angle (deg) | 63.5 |
| Head Tube Length (mm) | 100 |
| Seat Tube Angle (deg) | 77.5 |
| Seat Tube Length (mm) | 365 |
| Rear Centre (mm) | 430 |
| Bottom Bracket Drop (mm) | 17 |
| Reach (mm) | 430 |
| Stack (mm) | 599 |
| Standover Height (mm) | 765 |
| Wheelbase (mm) | 1188 |
Standover height is measured 200 mm in front of the bottom bracket.
View from drive side
| Top Tube Horizontal (mm) | 553 |
| Head Tube Angle (deg) | 63.8 |
| Head Tube Length (mm) | 100 |
| Seat Tube Angle (deg) | 77.8 |
| Seat Tube Length (mm) | 365 |
| Rear Centre (mm) | 430 |
| Bottom Bracket Drop (mm) | 13 |
| Reach (mm) | 433 |
| Stack (mm) | 599 |
| Standover Height (mm) | 768 |
| Wheelbase (mm) | 1188 |
Standover height is measured 200 mm in front of the bottom bracket.
Sizing chart
These figures are a rough guide only. Rider proportions, riding style, and personal preferences all factor in choosing the correct bike size. Rocky Mountain always recommends test riding and professional bike fitting at an authorized dealer.
Frame Size
Features and technologies
LC2R™ suspension system
LC2R™ (Low Centre Counter Rotating) is our unique take on a virtual pivot suspension design, delivering a smooth and predictable ride on challenging terrain.
RIDE-4™ adjustment system
The RIDE-4 adjustment system allows riders to quickly fine-tune their geometry with a single Allen key. Four configurations are possible thanks to one rotating chip.
Reach adjust headsets
Fine tune your ride with center, +/- 5mm offset options.
PenaltyBox™ 2.0
The new PenaltyBox™ 2.0 downtube storage (carbon models only) includes generous capacity, custom tool wrap and our rock-solid hinged door system that doubles down as a water bottle mount and built-in concealed AirTag/Tile compartment.
29” / MX
Ability to mullet MD-XL via built-in flip chip. No need to buy a separate link or mount.
Size Specific Tune
Size Specific Tune ensures that riders of all sizes get the right balance of small-bump compliance, mid-stroke support, and end-stroke progressiveness. Our design team does custom shock tunes based on real-world field testing and adjusts each tune for specific frame sizes. The new Altitude also has size-specific chainstay lengths to offer a balanced ride across all frame sizes.
SMOOTHWALL™ Carbon
Smoothwall carbon uses one of the world’s most sophisticated carbon processes to deliver industry leading stiffness-to-weight, ride quality, and durability.
Browse the lineup
Compatible parts
FAQs
What are the compatible wheel sizes for the Altitude?
The SM frame is equipped with 27.5” wheels front and back. The MD, LG, and XL frames are equipped with 29” wheels front and back, and they are also MX (Mullet) compatible.
What is the LC2R suspension?
LC2R™ (Low Centre Counter Rotating) is our unique take on a virtual pivot suspension design, delivering a smooth and predictable ride on challenging terrain. The LC2R™ delivers ride characteristics that balance kinematic variables to achieve the legendary Rocky Mountain ride feel riders have come to love
What is the altitude shock size and hardware?
The forward shock hardware is a 40 x 10mm ID pin and reducers.
What is the altitude seatpost diameter?
Both the Alloy and Carbon versions of the Altitude require a 30.9mm diameter seat post.
What is the altitude rear axle size?
The Altitude uses a 12mm x 148mm rear hub. The total axle length is 173mm, with a 1.0 thread pitch.
What is the maximum seatpost insertion on the Altitude?
Dropper post length depends on your saddle height and the maximum seatpost insertion depth which you’ll find in the user manual.
What is the maximum recommended fork length?
The Altitude is compatible with forks up to 170mm in travel.
What are the Altitude's chainlength and chainline range?
These measurements are using the OEM Installed Chainring.
SM = 32T | 116L
MD = 32T | 118L118L
LG - XL = 32T | 120L
The chainline range for the Altitude is: 52 - 55mm
What is the Altitude's maximum chainring size?
The maximum chainring size is 34T and the minimum is 30.
Can I ajdust the headset reach?
Yes, all frames are equipped with reach adjust headsets to fine tune the reach with 3 positions (short, center, long).
What headset size is compatible with my Altitude?
Altitude Carbon: No.85-1 0mm Offset Headset, complete
Altitude Alloy: RMB ZS56|66 0mm Offset Headset, complete
Headset Cup Set 1194004 RMB Upper ZS56 | 5mm Offset Cup Set
What is the fork offset for the Altitude?
The fork offset is 37mm offset.
What size is needed for the bottom bracket?
The Altitude needs a BSA 73 Threaded bottom bracket, meaning that it's 73mm wide and uses English type threads.
