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2021 Rocky Mountain Instinct Carbon 90

Launched at $9,399Lists today at $9,399 (2026-09)

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What a used one is worth

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New

$5,252

$3,392 to $6,328

Like new

$4,989

$3,222 to $6,011

Excellent

$4,727

$3,053 to $5,695

Good

$3,939

$2,544 to $4,746

Fair

$2,889

$1,865 to $3,480

For parts

$1,576

$1,018 to $1,898

From the launch price, aged to 2026 and adjusted for condition. Guidance from our catalog, not an appraisal.

Overview

Brand: Rocky Mountain
Model family: Instinct
Model year: 2021
Category: Mountain · trail
Frame material: carbon
Sizes: XS, S, M, L, XL
Wheel size: 27.5 or 29
Wheel setup: either
Launch MSRP (US): $9,399
Current list price: $9,399 (as of 2026-09)

Drivetrain

Speeds: 12
Groupset: Shimano XTR
Electronic: false

Build

Fork: Fox 36 Float EVOL FIT4 Factory Series 150mm | 27.5 = 37mm Offset | 29 = 44mm Offset
Stem: Rocky Mountain 35 CNC | 0° Rise | All Sizes = 40mm
Tires: F: Maxxis Minion DHF 2.5 WT 3C MaxxTerra EXO+ Tubeless Ready // R: Maxxis Minion DHR II 2.4 WT 3C MaxxTerra EXO+ Tubeless Ready
Brakes: Shimano XTR Trail 4 Piston | Metallic Pads | RT86 180mm F Rotor | RT86 180mm R Rotor
Saddle: WTB Volt Race | Cromoly Rails | 142mm Width
Wheels: Race Face ARC Carbon 31 | Tubeless Ready - Tape | Valves Incl | 32H rims; hubs: Rocky Mountain Sealed Boost 15mm / DT Swiss 350 Boost 148mm | RMB Axle | 163mm x 12mm x 1.5mm
Cassette: Shimano XTR 12s 10-51T
Crankset: Race Face Next R Cinch | 27.5 = 34T | 29 = 32T | 30mm Spindle | 170mm Crank Length
Seatpost: Race Face Turbine R (by Fox) Dropper 30.9mm | XS - SM = 125mm | MD = 150mm | LG - XL = 175mm
Shifters: Shimano XTR
Handlebar: Race Face Next R | 780mm Width | 20mm Rise | 8° Backsweep | 4° Upsweep | 35mm Clamp
Weight kg: 13.65
Rear shock: Fox Float DPX2 Factory | Sealed Bearing Eyelet | 25x8mm F Hardware | XS - SM = 190x45mm | MD - LG - XL = 210x52.5mm | Size-Specific tune in FAQ
Travel rear mm: 140
Rear derailleur: Shimano XTR
Travel front mm: 150

Geometry

L 29: Reach mm: 487; Stack mm: 628; Wheelbase mm: 1240; Head angle deg: 65.7; Seat angle deg: 76.7
M 29: Reach mm: 462; Stack mm: 615; Wheelbase mm: 1209; Head angle deg: 65.7; Seat angle deg: 76.7
S 29: Reach mm: 437; Stack mm: 611; Wheelbase mm: 1182; Head angle deg: 65.7; Seat angle deg: 76.7
XL 29: Reach mm: 517; Stack mm: 642; Wheelbase mm: 1277; Head angle deg: 65.7; Seat angle deg: 76.7
S 27.5: Reach mm: 439; Stack mm: 589; Wheelbase mm: 1162; Head angle deg: 65.9; Seat angle deg: 76.9
XS 27.5: Reach mm: 414; Stack mm: 581; Wheelbase mm: 1133; Head angle deg: 65.9; Seat angle deg: 76.9

list_price_usd is the price Rocky Mountain's archive page shows today; no in-season capture confirmed it as the launch price. Geometry is the Neutral position of the adjustable geometry chip. Geometry keys carry the wheel size. 2 factory colorways. Price read from Rocky Mountain's US store page captured 2021-12 (inside the model year).

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