2025 Rocky Mountain Instinct Alloy 50 Bike

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Specifications

Product

Rocky Mountain Instinct Alloy 50 Bike

Model Year

2025

Intended Use

Enduro / All-Mountain

Trail

Rider

Unisex

Sizes and Geometry

XS 27.5" (Slackest, Steepest)

SM 27.5" (Slackest, Steepest)

SM 29" (Slackest, Steepest)

MD 29" (Slackest, Steepest)

LG 29" (Slackest, Steepest)

XL 29" (Slackest, Steepest)

View Full Geometry

Size	XS 27.5" (Slackest, Steepest)	SM 27.5" (Slackest, Steepest)	SM 29" (Slackest, Steepest)	MD 29" (Slackest, Steepest)	LG 29" (Slackest, Steepest)	XL 29" (Slackest, Steepest)
Top Tube Length	540mm, 539mm	567mm, 567mm	572mm, 571mm	621mm, 623mm	640mm, 634mm	649mm, 645mm
Head Tube Angle	63.5°, 64.3°	63.5°, 64.3°	63.5°, 64.3°	63.5°, 64.3°	63.5°, 64.3°	63.5°, 64.3°
Head Tube Length	100mm	110mm	100mm	110mm	125mm	135mm
Seat Tube Angle	76.5°, 77.3°	76.5°, 77.3°	76.5°, 77.3°	76.5°, 77.3°	76.5°, 77.3°	76.5°, 77.3°
Seat Tube Length	355mm	365mm	365mm	410mm	440mm	470mm
Bottom Bracket Height	27mm drop, 15mm drop	27mm drop, 15mm drop	44mm drop, 32mm drop	44mm drop, 32mm drop	44mm drop, 32mm drop	44mm drop, 32mm drop
Chainstay Length	430-440mm	430-440mm	440-450mm	440-450mm	440-450mm	440-450mm
Wheelbase	1150mm, 1148mm	1179mm, 1177mm	1198mm, 1197mm	1227mm, 1227mm	1259mm, 1258mm	1293mm, 1293mm
Standover	757mm, 760mm	753mm, 757mm	760mm, 765mm	798mm, 801mm	796mm, 800mm	792mm, 798mm
Reach	398mm, 408mm	423mm, 433mm	423mm, 437mm	449mm, 458mm	474mm, 483mm	504mm, 513mm
Stack	585mm, 594mm	582mm, 591mm	572mm, 571mm	599mm, 599mm	628mm, 626mm	659mm, 659mm
Additional Info	• Geometry adjustable via RIDE-4 flip chip at rear shock mount • Measurements with two values represent RIDE-4 geometry's Slackest and Steepest configurations; see Rocky Mountain's website for intermediate RIDE-4 adjustable geometry values • Chainstay length adjustable via two-setting flip chip at rear dropout • Reach adjustable (+/-5mm) via modular headset cups (included) • All specifications listed are with 150mm travel fork • Standover height is measured 200mm in front of the bottom bracket

Sizes Additional Info

• Geometry adjustable via RIDE-4 flip chip at rear shock mount
• Measurements with two values represent RIDE-4 geometry's Slackest and Steepest configurations; see Rocky Mountain's website for intermediate RIDE-4 adjustable geometry values
• Chainstay length adjustable via two-setting flip chip at rear dropout
• Reach adjustable (+/-5mm) via modular headset cups (included)
• All specifications listed are with 150mm travel fork
• Standover height is measured 200mm in front of the bottom bracket

View Full Geometry

Size	XS 27.5" (Slackest, Steepest)	SM 27.5" (Slackest, Steepest)	SM 29" (Slackest, Steepest)	MD 29" (Slackest, Steepest)	LG 29" (Slackest, Steepest)	XL 29" (Slackest, Steepest)
Top Tube Length	540mm, 539mm	567mm, 567mm	572mm, 571mm	621mm, 623mm	640mm, 634mm	649mm, 645mm
Head Tube Angle	63.5°, 64.3°	63.5°, 64.3°	63.5°, 64.3°	63.5°, 64.3°	63.5°, 64.3°	63.5°, 64.3°
Head Tube Length	100mm	110mm	100mm	110mm	125mm	135mm
Seat Tube Angle	76.5°, 77.3°	76.5°, 77.3°	76.5°, 77.3°	76.5°, 77.3°	76.5°, 77.3°	76.5°, 77.3°
Seat Tube Length	355mm	365mm	365mm	410mm	440mm	470mm
Bottom Bracket Height	27mm drop, 15mm drop	27mm drop, 15mm drop	44mm drop, 32mm drop	44mm drop, 32mm drop	44mm drop, 32mm drop	44mm drop, 32mm drop
Chainstay Length	430-440mm	430-440mm	440-450mm	440-450mm	440-450mm	440-450mm
Wheelbase	1150mm, 1148mm	1179mm, 1177mm	1198mm, 1197mm	1227mm, 1227mm	1259mm, 1258mm	1293mm, 1293mm
Standover	757mm, 760mm	753mm, 757mm	760mm, 765mm	798mm, 801mm	796mm, 800mm	792mm, 798mm
Reach	398mm, 408mm	423mm, 433mm	423mm, 437mm	449mm, 458mm	474mm, 483mm	504mm, 513mm
Stack	585mm, 594mm	582mm, 591mm	572mm, 571mm	599mm, 599mm	628mm, 626mm	659mm, 659mm
Additional Info	• Geometry adjustable via RIDE-4 flip chip at rear shock mount • Measurements with two values represent RIDE-4 geometry's Slackest and Steepest configurations; see Rocky Mountain's website for intermediate RIDE-4 adjustable geometry values • Chainstay length adjustable via two-setting flip chip at rear dropout • Reach adjustable (+/-5mm) via modular headset cups (included) • All specifications listed are with 150mm travel fork • Standover height is measured 200mm in front of the bottom bracket

Wheel Size

27.5" (650b)

29"

Frame Material

Aluminum

Frame Material Details

FORM alloy front and rear triangles; molded chainstay, seatstay, lower down tube, and shuttle guard protection

Rear Travel

140mm

Rear Shock

FOX FLOAT X Performance, size-specific tune, 190mm length x 45mm stroke (XS/SM) or 210mm length x 52.5mm stroke (MD-XL)

Fork

FOX FLOAT 36 Performance, EVOL, GRIP damper, 37mm (27.5") or 44mm (29") offset

Fork Travel

150mm

Head Tube Diameter

Headset

FSA Reach Adjust, sealed stainless steel bearings, ZS56/66, 0mm cups installed, +/-5mm cups included

Handlebar

Rocky Mountain AM, 780mm width, 25mm rise, 9° backsweep, 5° upsweep, 35mm clamp diameter

Stem

Rocky Mountain AM, 40mm length, 0° rise, 35mm bar clamp

Grips

ODI Elite Pro, lock-on

Brakes

Shimano MT6120, 4-piston, metal pads
Rotors: Shimano

Brake Levers

Shimano MT6100

Drivetrain

Shifters

Shimano Deore XT M8100, 12-speed

Front Derailleur

None

Rear Derailleur

Shimano Deore XT M8100, 12-speed

ISCG Tabs

2-bolt ISCG05

Chainguide

OneUp upper slider

Cranks

Race Face Ride Cinch Alloy, 24mm spindle
Length: 165mm (XS/SM), 170mm (MD-XL)

Chainrings

Race Face Ride Cinch, 32 tooth

Bottom Bracket

Shimano MT500, 92mm press-fit

Pedals

None

Chain

Shimano Deore M6100, 12-speed

Cassette

Shimano SLX M7100, 12-speed, 10-51 tooth

Rims

WTB KOM Team i30 TCS 2.0, 30mm inner width, 28 hole, set up tubeless (tape, valves, and sealant included)

Hubs

Front: Novatec D791SB, sealed bearings, 15mm x 110mm (Boost)
Rear: Shimano Deore XT, 12mm x 148mm (Boost), MICRO SPLINE driver

Spokes

Stainless steel 2.0

Tires

Front: Maxxis Minion DHF, 3C MaxxTerra compound, EXO+ casing, TR, 2.5" WT
Rear: Maxxis Minion DHR II, 3C MaxxTerra compound, EXO+ casing, TR, 2.4" WT

Saddle

WTB Volt Race, chromoly rails, 142mm width

Seatpost

X-Fusion Manic Composite dropper
Drop: 125mm (XS), 150mm (SM), 170mm (MD), 200mm (LG/XL)

Seatpost Diameter

30.9mm

Seatpost Clamp

Single bolt, 34.9mm

Rear Dropout / Hub Dimensions

12mm x 148mm (Boost)

Max. Tire Size

Bottle Cage Mounts

One inside front triangle

Colors

Sweet Dreams / Cry Baby

Warranty

5 years frame; 1 year paint, decals, and frame hardware

Weight

Miscellaneous

• SMOOTHLINK Four-Bar Horst-Link rear suspension design
• Geometry adjustable via RIDE-4 flip chip at rear shock mount
• Chainstay length adjustable via two-setting flip chip at rear dropout
• Reach adjustable (+/-5mm) via modular headset cups (included)
• Internal cable routing
• SRAM UDH (Universal Derailleur Hanger)

Price

$4,599.00

More Info

Introducing the 2024 Rocky Mountain Instinct (press release)

Rocky Mountain website

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Where To Buy
	Free shipping on orders over $50 (continental U.S. only). International shipping available. Some exclusions apply.	Browse available Bikes
	Free shipping on orders over $69 (continental U.S. only). International shipping available. Some exclusions apply.	Browse available Bikes
	Free shipping on orders over $50 (contiguous U.S. only). International shipping available. Some exclusions apply.	Browse available Bikes
	Free U.S. shipping on everything. International shipping available. Some exclusions apply.	Browse available Bikes