Altitude Alloy 70 Coil

The 2024 Rocky Mountain Altitude marks a significant departure from its predecessor, shedding its long-legged trail bike roots to become a dedicated enduro race machine. Built around 160mm of rear travel and a 170mm fork, the defining change for this generation is the return of the LC2R virtual-pivot suspension layout. By positioning the shock and linkages low in the frame, Rocky Mountain drastically lowered the bike's center of gravity while increasing lateral stiffness. This redesign signals a clear intent: the Altitude is built for riders who prioritize high-speed stability and composure on steep, aggressive descents. While it retains the pedaling manners necessary for long transfer stages, its primary focus is erasing rough terrain and maintaining momentum when pointed downhill.

$4,559Model Year 2025
Rocky Mountain Altitude Alloy 70 Coil
Year
Build
Size
Stack630mm
Reach450mm
Top tube584mm
Headtube length105mm
Standover height791mm
Seat tube length410mm

Fit and geometry

The Altitude’s geometry reflects its aggressive intentions, featuring a slack head tube angle that hovers around 63 degrees and a steep effective seat tube angle near 77.5 degrees. This combination keeps the rider centered and comfortable during long, seated climbs while pushing the front wheel far enough ahead to handle vertical descents. Size-specific chainstays ensure that the bike's front-to-rear balance remains consistent across the size run.

What truly sets the frame apart is its extensive adjustability. The RIDE-4 flip chip at the shock mount allows riders to fine-tune the head angle, bottom bracket height, and suspension progression across four distinct positions. Additionally, a reach-adjust headset offers five millimeters of adjustment in either direction, letting riders tailor the cockpit length for stability or quicker handling without altering the rest of the geometry. For further customization, Medium through XL frames include a secondary flip chip to accommodate a mixed-wheel setup, while the size Small is designed exclusively around 27.5-inch wheels.

Full specs

Frameset

Frame

FORM™ Alloy | Full Sealed Cartridge Bearings | Threaded BB | Internal Cable Routing | 2-Bolt ISCG05 Tabs | RIDE-4™ Adjustable Geometry | 160mm Travel | FORM™ Alloy Rear Triangle

Fork

Fox 38 Float EVOL GRIP X2 Factory Series 170mm | 27.5 = 37mm Offset | 29 = 44mm Offset

Rear shock

Fox DHX2 Coil Factory | Sealed Bearing Eyelet | 40x10mm F Hardware | SM = 210x55mm | MD - LG - XL = 230x60mm | Coil Spring SM - MD - LG - XL = 400 - 450 - 500 - 550

Groupset

Shift levers

Shimano XT

Rear derailleur

Shimano XT

Cassette

Shimano SLX 10-51T 12spd

Chain

Shimano M7100

Crankset

Race Face Aeffect R Cinch | 32T | 24mm Spindle | SM = 165mm | MD - XL = 170mm

Bottom bracket

Shimano Threaded BBMT501-B

Front brake

Shimano XT Trail 4 Piston | Metal Pads

Rear brake

Shimano XT Trail 4 Piston | Metal Pads

Front rotor

null

Rear rotor

null

Wheelset

Front wheel

Race Face AR 30 | 32H | Cushcore Trail Tire Inserts | Lightweight | Tire & Rim Protection; Novatec D791SB Sealed Boost 15mm; DT Swiss Competition 2.0/1.8/2.0

Rear wheel

Race Face AR 30 | 32H | Cushcore Trail Tire Inserts | Lightweight | Tire & Rim Protection; DT Swiss 370 Boost 148mm | 18T Star-Ratchet; DT Swiss Competition 2.0/1.8/2.0

Front tire

Maxxis Assegai 2.5 WT 3C MaxxGrip EXO+ Tubeless Ready

Rear tire

Maxxis Minion DHR II 2.4 WT 3C MaxxTerra DD Tubeless Ready

Cockpit

Stem

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

Handlebars

Rocky Mountain AM | 780mm Width | 38mm Rise | 9° Backsweep | 5° Upsweep | 35 Clamp

Saddle

WTB Solano Fusion Form 142 | Cromoly Rails

Seatpost

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

Grips

ODI Elite Pro Lock On

Builds

The Altitude lineup spans five builds, split between carbon and alloy frames. Carbon models feature the PenaltyBox 2.0 downtube storage, which includes a secure latch and a hidden compartment for a tracking device. Across the range, Rocky Mountain equips the bike for immediate enduro racing. Most builds, including the Carbon 70 and Alloy 70 Coil, ship with heavy-duty Maxxis tires—typically a DoubleDown rear and EXO+ front—paired with pre-installed CushCore Trail inserts. This aggressive rubber specification adds weight but saves buyers from needing immediate durability upgrades.

The Carbon 70 relies on a RockShox ZEB Select+ fork and Vivid Select+ air shock, paired with a SRAM GX Eagle Transmission and Maven Bronze brakes. Alternatively, the Alloy 70 Coil opts for Fox Factory suspension, featuring a 38 fork and DHX2 coil shock, driven by a Shimano XT drivetrain. While the suspension and drivetrain choices are widely praised for their performance, reviewers frequently noted that the stock Race Face AR 30 alloy rims are prone to denting under heavy impacts, and the DT Swiss 370 hubs spec'd on several mid-tier builds offer notably slow engagement.

Reviews

Reviewers consistently characterize the Altitude as a gravity-focused sled that excels at speed but demands an active pilot. The LC2R suspension earns widespread praise for its exceptional traction and bump absorption, with one tester noting it acts as a "magic eraser" (YouTube) that smooths out harsh terrain and forgives poor line choices. The low-slung shock placement translates to a highly stable ride, allowing the bike to track predictably through rough, off-camber sections.

However, this stability comes at the expense of low-speed agility. Testers found that the bike's length and planted nature mean it "requires great physical effort to flick the rear end around tight corners" (Enduro MTB). It prefers wide radiuses and high velocities, feeling somewhat sluggish on flatter, mellower trails. Climbing performance is generally viewed as efficient for the category, with the active suspension providing relentless grip on technical ascents, though some riders noted noticeable pedal bob when leaving the shock fully open.

While the ride quality is highly regarded, several reviewers pointed out minor hardware frustrations. A recurring issue on early production models was a main pivot bolt that loosened, which requires removing the crankset to tighten. Additionally, multiple testers experienced a "baffling" (PinkBike) rattle from the stock dropper post or internal cables, which detracted from an otherwise composed ride.

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Sam James·Nov 2024
Review: Rocky Mountain Altitude gains purpose

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Steve Fisher·Jul 2024
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