Velopedia Bicycle Archive
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Compare published geometry, gearing and specifications for up to three bicycles.
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At a glance
Key differences
Supported differences are shown below. Data limitations are labeled separately.
No key difference could be established from the available data. Check the full table for the details.
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%
Estimated speed at 90 RPMLowest gearHighest gear
Rear tire: 2.4″ + 29-inch.
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
2024 Rocky Mountain Instinct Alloy 50
2025 Rocky Mountain Instinct Alloy 50
Overview
Model Year
2024
2025
Brand
Rocky Mountain
Rocky Mountain
Model
Instinct Alloy 50
Instinct Alloy 50
Bicycle Type
Mountain
Mountain
Original MSRP
$4,599.00
$4,599.00
Colors
Grey/Beige, Brown/Yellow/Black
Blue/Blue
Sizes
XS, S, M, L, XL
XS, S, M, L, XL
Weight
—
—
Frameset
Frame Construction
FORM™ Alloy | Full Sealed Cartridge Bearings | Press Fit BB | Internal Cable Routing | 2-Bolt ISCG05 Tabs | RIDE-4™ Adjustable Geometry | 2 Position Axle | 140mm Travel | FORM™ Alloy Rear Triangle
FORM™ Alloy | Full Sealed Cartridge Bearings | Press Fit BB | Internal Cable Routing | 2-Bolt ISCG05 Tabs | RIDE-4™ Adjustable Geometry | 2 Position Axle | 140mm Travel | FORM™ Alloy Rear Triangle
Frame Material
Aluminum
Aluminum
Fork
Fox 36 Float EVOL GRIP Performance Series 150mm | 27.5 = 37mm Offset | 29 = 44mm Offset
Fox 36 Float EVOL GRIP Performance Series 150mm | 27.5 = 37mm Offset | 29 = 44mm Offset
Rear Shock
Fox Float X Performance | Sealed Bearing Eyelet | 20x8mm F Hardware | XS - SM = 190x45mm | MD - LG - XL = 210x52.5mm | Size-Specific tune in FAQ
Fox Float X Performance | Sealed Bearing Eyelet | 20x8mm F Hardware | XS - SM = 190x45mm | MD - LG - XL = 210x52.5mm | Size-Specific tune in FAQ
Drivetrain
Shifters
Shimano XT
Shimano XT
Rear Derailleur
Shimano XT
Shimano XT
Crankset
Race Face Ride Cinch | 32T | 24mm Spindle | Crankarm Length: XS -SM = 165mm | MD - XL = 170mm
Race Face Ride Cinch | 32T | 24mm Spindle | Crankarm Length: XS -SM = 165mm | MD - XL = 170mm
Bottom Bracket
Shimano SM-BBMT500
Shimano SM-BBMT500
Cassette
Shimano SLX 10-51T 12spd
Shimano SLX 10-51T 12spd
Chain
Shimano M6100
Shimano M6100
Brakes
Brakes
Shimano MT6120 4 Piston | Metal Pads
Shimano MT6120 4 Piston | Metal Pads
Cockpit & Contact Points
Headset
FSA ZS56/66 Reach Adjust | 0mm Cups Installed | +/- 5mm Cups Included | Sealed Stainless 36°x45° Bearings | 30.2mm x 41mm x 6.5mm Upper | 40mm x 51.8mm x 8.0mm Lower | 1.5" Crown Race
FSA ZS56/66 Reach Adjust | 0mm Cups Installed | +/- 5mm Cups Included | Sealed Stainless 36°x45° Bearings | 30.2mm x 41mm x 6.5mm Upper | 40mm x 51.8mm x 8.0mm Lower | 1.5" Crown Race
Handlebar
Rocky Mountain AM | 760mm Width | 25mm Rise | 9° Backsweep | 5° Upsweep | 35 Clamp
Rocky Mountain AM | 760mm Width | 25mm Rise | 9° Backsweep | 5° Upsweep | 35 Clamp
Stem
Rocky Mountain 35 AM | 0° Rise | All Sizes = 40mm
Rocky Mountain 35 AM | 0° Rise | All Sizes = 40mm
Saddle
WTB Volt Race 142 | Cromoly rails
WTB Volt Race 142 | Cromoly rails
Seatpost
X Fusion Manic Composite 30.9mm | XS = 125mm | SM = 150mm | MD = 170mm | LG - XL = 200mm
X Fusion Manic Composite 30.9mm | XS = 125mm | SM = 150mm | MD = 170mm | LG - XL = 200mm
Wheels & Tires
Hubs
Front: Novatec D791SB Sealed Boost 15mm; Rear: Shimano XT Boost 148mm
Front: Novatec D791SB Sealed Boost 15mm; Rear: Shimano XT Boost 148mm
Rims
WTB KOM Team i30 TCS 2.0 | 28H | Tubeless Set Up | Sealant Incl
WTB KOM Team i30 TCS 2.0 | 28H | Tubeless Set Up | Sealant Incl
Spokes
2.0 Stainless
2.0 Stainless
Front Tire
Maxxis Minion DHF 2.5 WT 3C MaxxTerra EXO+ Tubeless Ready
Maxxis Minion DHF 2.5 WT 3C MaxxTerra EXO+ Tubeless Ready
Rear Tire
Maxxis Minion DHR II 2.4 WT 3C MaxxTerra EXO+ Tubeless Ready
Maxxis Minion DHR II 2.4 WT 3C MaxxTerra EXO+ Tubeless Ready
Wheel Size
27.5"; 29"
27.5"; 29"
Geometry · choose a size for each bicycle
Geometry size
Reach
510 mm
510 mm
Stack
659 mm
659 mm
Effective top tube
645 mm
645 mm
Head-tube angle
64°
64°
Seat-tube angle
77°
77°
Seat tube
470 mm
470 mm
Head tube
135 mm
135 mm
Chainstay / rear center
440 - 450
440 - 450
Wheelbase
1293 mm
1293 mm
Bottom-bracket drop
36 mm
36 mm
Standover height
796 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.