Velopedia Bicycle Archive
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Compare published geometry, gearing and specifications for up to three bicycles.
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1 of 2 bicycles
At a glance
Key differences
Supported differences are shown below. Data limitations are labeled separately.
- Frame geometry
2024 Rocky Mountain Instinct Carbon 90 has 21 mm more reach than 2021 Rocky Mountain Instinct Carbon 90 in the selected sizes.
More reach puts the head-tube reference farther forward, not necessarily the hands.
- Frame geometry
2024 Rocky Mountain Instinct Carbon 90 has 32 mm more stack than 2021 Rocky Mountain Instinct Carbon 90 in the selected sizes.
More stack places the frame reference higher, not necessarily the handlebar.
- Handling
2024 Rocky Mountain Instinct Carbon 90 has a 1.8° slacker head-tube angle than 2021 Rocky Mountain Instinct Carbon 90 in the selected sizes.
Fork offset, tire size and wheelbase also affect steering; head angle alone is not a handling verdict.
- Data limitation
Published weights cannot be compared because the measurement conditions are missing or differ.
Selected-size geometry
Geometry overlay
Frames share one scale and a bottom-bracket alignment. Size labels differ by brand; schematic drawing aids are identified below.
Gearing comparison
Lower gears help on climbs. Higher gears suit higher speeds.
RPM
RPM = pedal turns per minute.
Lowest0.63:1Highest3.20:1Total range510%
Estimated speed at 90 RPMLowest gearHighest gear
Rear tire: 2.4″ + 29-inch.
Lowest0.63:1Highest3.20:1Total range510%
Speed unavailable: wheel or tire size is missing or unclear.
How it works
Ratio = front teeth ÷ rear teeth. Hub gears also include the hub’s internal ratio. A 400% range means the highest ratio is four times the lowest.
Speeds are estimates from tire size and pedal cadence. Actual speeds vary.
Complete specification tableShows different published values and gaps where a bicycle lacks data. Different wording reflects source language, not necessarily different components. Swipe for more columns.
Specification
2021 Rocky Mountain Instinct Carbon 90
2024 Rocky Mountain Instinct Carbon 90
Overview
Model Year
2021
2024
Brand
Rocky Mountain
Rocky Mountain
Model
Instinct Carbon 90
Instinct Carbon 90
Bicycle Type
Mountain
Mountain
Original MSRP
$9,399.00
$8,999.00
Colors
Green/Carbon, Purple/Beige
Grey/Beige
Sizes
XS, S, M, L, XL
XS, S, M, L, XL
Weight
30.03 LBS|13.65 KGS
29.8 LBS|13.5 KGS
Frameset
Frame Construction
SMOOTHWALL™ Carbon. Full Sealed Cartridge Bearings. Press Fit BB. Internal Cable Routing. 2-Bolt ISCG05 Tabs. RIDE-9™ Adjustable Geometry. 2 Position Axle. 140mm Travel. SMOOTHWALL™ Carbon Rear Triangle
SMOOTHWALL™ Carbon | Full Sealed Cartridge Bearings | Press Fit BB | Internal Cable Routing | 2-Bolt ISCG05 Tabs | RIDE-4™ Adjustable Geometry | 2 Position Axle | 140mm Travel. SMOOTHWALL™ Carbon Rear Triangle
Frame Material
Carbon Fiber
Carbon Fiber
Fork
Fox 36 Float EVOL FIT4 Factory Series 150mm | 27.5 = 37mm Offset | 29 = 44mm Offset
Fox 36 Float EVOL GRIP2 Factory Series 150mm | 27.5 = 37mm Offset | 29 = 44mm Offset
Rear Shock
Fox Float DPX2 Factory | Sealed Bearing Eyelet | XS - SM = 190x45mm | MD - LG - XL = 210x52.5mm
Fox Float X Factory | Sealed Bearing Eyelet | 20x8mm F Hardware | XS - SM = 190x45mm | MD - LG - XL = 210x52.5mm | MD - LG - XL = 210x52.5mm | Size-Specific tune in FAQ
Drivetrain
Shifters
Shimano XTR
Shimano XTR
Rear Derailleur
Shimano XTR
Shimano XTR
Crankset
Race Face Next R Cinch | 27.5 = 34T | 29 = 32T
Race Face Next SL G5 Cinch | 32T | 30mm Spindle | Crankarm Length: All Sizes = 170mm
Bottom Bracket
Race Face BB92 30mm
Race Face BB92 30mm
Cassette
Shimano XTR 12s 10-51T
Shimano XTR 12s 10-51T
Chain
Shimano XTR 12s
Shimano XTR 12s
Brakes
Brakes
Shimano XTR Trail 4 Piston
Shimano XTR Trail 4 Piston | IceTec Metal Pads
Cockpit & Contact Points
Headset
FSA Orbit NO.57E
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
Handlebar
Race Face Next R 780mm
Race Face Next R | 780mm Width | 20mm Rise | 8° Backsweep | 5° Upsweep | 35mm Clamp
Stem
Rocky Mountain 35 CNC
Rocky Mountain 35 CNC | 0° Rise | All Sizes = 40mm
Saddle
WTB Volt Race 142
WTB Volt Race 142
Seatpost
Race Face Turbine R (by Fox) Dropper 30.9mm | XS - SM = 125mm | MD = 150mm | LG - XL = 175mm
Fox Transfer Factory Series 30.9mm | XS = 125mm | SM = 150mm | MD = 175mm | LG - XL = 200mm
Wheels & Tires
Hubs
Front: Rocky Mountain Sealed Boost 15mm; Rear: DT Swiss 350 Boost 148mm
Front: DT Swiss 350 Boost 15mm; Rear: DT Swiss 350 Boost 148mm | 36T Star-Ratchet
Rims
Race Face ARC Carbon 31 / Tubeless Ready - Tape / Valves Incl
Race Face ARC Carbon 31 | 28H / Tubeless Ready - Tape / Valves Incl
Spokes
DT Swiss Competition 2.0/1.8/2.0
DT Swiss Competition 2.0/1.8/2.0
Front Tire
Maxxis Minion DHF 2.5 WT 3C MaxxTerra EXO+ Tubeless Ready
Maxxis Dissector 2.4 WT 3C MaxxTerra EXO Tubeless Ready
Rear Tire
Maxxis Minion DHR II 2.4 WT 3C MaxxTerra EXO+ Tubeless Ready
Maxxis Dissector 2.4 WT 3C MaxxTerra EXO Tubeless Ready //
Wheel Size
29"; 27.5"
29"; 27.5"
Geometry · choose a size for each bicycle
Geometry size
Reach
489 mm
510 mm
Stack
627 mm
659 mm
Effective top tube
636 mm
645 mm
Head-tube angle
65.8°
64°
Seat-tube angle
76.8°
77°
Seat tube
445 mm
470 mm
Head tube
110 mm
135 mm
Chainstay / rear center
437 - 448
440 - 450
Wheelbase
1240 mm
1293 mm
Bottom-bracket drop
34 mm
36 mm
Standover height
802 mm
796 mm
Wheel size
29
29
Historical specifications are presented as an archival reference. Components may have varied by market, size, or production run.