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Rocky Mountain
Instinct Alloy 30 Shimano Mountain Bike

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Why We Like The Rocky Mountain Instinct Alloy 30 Shimano Mountain Bike

Whether we are looking for the one bike to replace all others or just the perfect bike for aggressive trail riding, the Rocky Mountain Instinct is one of our favorite bikes due to its ability to be perfectly suited to handle almost any trail we encounter. The Rocky Mountain Instinct sports 140mm of Smoothlink suspension for an efficient pedaling bike that rides high in its travel and feels fast in every scenario. Size-specific tunes give every rider an optimal ride feel by fine-tuning suspension kinematics for optimal small bump sensitivity, mid-stroke support, and bottom-out resistance to ensure trail-ready performance from day one. Rocky Mountain's Ride-9 adjustment system gives us a range of nine settings to customize our frame geometry and ride feel toward our preferences. The Instinct has a 65.1 - 66.2-degree head tube angle, so we can be more composed, confident, and stable in steeper terrain while maintaining snappy handling on flatter ground. The Instinct features a medium-length wheelbase and a steep 76.6-degree seat tube angle, giving us an efficient position, a stable platform for a balanced ride feel. The 2-position adjustable axle allows us to adjust our chainstay length independently of our frame geometry to give us a more stable or playful ride, and the integrated downtube and chainstay protectors keep our frame protected from the chain, rocks, and bottom-outs.

The Alloy 30 Shimano build of the Rocky Mountain Instinct is stocked with components that sport incredible value and are fit for any trail rider. First up is Rocky Mountain's Form alloy frame, which is made with premium materials for an impressive strength-to-weight ratio and gives us confidence sending it through the jump line. Next, Shimano's Deore 12-speed drivetrain sports a wide range and a reliable, value-based build. Deore 4-piston brakes keep us under control or steep descents, while the WTB ST Light i30 TCS 2.0 rims give us confidence plowing down chunky trails. The 150mm RockShox 35 Gold RL fork gives us trail-ready performance with rebound adjustments and a compression lockout lever, so we tune our fork to our riding style, and the RockShox Deluxe Select+ rear shock is lightweight and has a custom tune for optimal performance.

*Due to a high demand in the global supply chain and bike industry since the start of the pandemic, material weight and exact components are subject to change. We are working diligently to keep tech specs updated, and any adjustments will be of equal or better spec level, If you have any questions, reach out to a Gearhead by chatting online or calling 1-888-276-7130.


  • Mid-travel trail bike with versatile geometry adjustments
  • FORM aluminum alloy frame is made with premium materials for performance
  • 140mm of Smoothlink suspension gives us balanced all-mountain performance
  • Adjustable chainstay length for a more stable or agile ride
  • Ride-9 adjustment system steepens or slackens our geometry for more capability
  • RockShox Deluxe Select+ rear shock has a custom size-specific tune
  • RockShox Recon Gold RL, 150mm fork can be locked out out for efficient climbing
  • Size small is only offered with a 27.5in wheelset
  • Item #RMBB01H
Frame Material
FORM aluminum alloy
Rear Shock
RockShox Deluxe Select+
Rear Travel
RockShox 35 Gold RL
Front Travel
FSA Orbit NO.57E
Shimano Deore, 12-speed
Rear Derailleur
Shimano Deore, 12-speed
Shimano Deore, alloy, 12-speed
Chainring Sizes
Crank Arm Length
[x-small, small] 165mm, [medium, large, x-large] 170mm
Bottom Bracket
Shimano SM-BBMT500
Shimano Deore, 12-speed
Cassette Range
Shimano M6100, 12-speed
Shimano MT4120
Brake Type
[front, rear] Shimano RT30, 180mm
Rocky Mountain AM, alloy
Handlebar Rise
Handlebar Sweep
[up] 5-degrees, [back] 9-degrees
Handlebar Width
ODI Elite Pro Lock On
Rocky Mountain AM, 31.8mm
Stem Length
WTB Volt, 142mm
Rocky Mountain Toonie Drop Composite 30.9mm
Seatpost Travel
[x-small, small] 125mm, [medium] 150mm, [large, x-large] 170mm
[front, rear] WTB ST Light i30 TCS 2.0 tubeless, alloy, 28H
[front] Rocky Mountain Sealed [rear] Novatec D462 Sealed
Front Axle
15 x 110mm Boost
Rear Axle
12 x 148mm Boost
Tire Clearance
[rear] 2.5in
[front, rear] Maxxis Minion DHF, WT, EXO, TR, [rear] Maxxis Minion DHR II, WT, EXO, TR
Tire Size
[front, 29 x 2.5in, [rear] 29 x 2.4in (size small only offered in 27.5in)
not included
downtube protector, chainstay protector, shuttle guard, Ride-9 adjustable geometry, 2-position rear axle, internal cable routing
Manufacturer Warranty
5 year

Overall Rating

5 based on 1 ratings

Review Summary

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5 Stars - 1 reviews

Fits True To Size

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Runs smallTrue to sizeRuns large

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5 out of 5 stars

April 15, 2024

Great features

I've used it once or twice and have initial impressions
Size Bought:

I bought this bike in size small for my 5'2" wife. It's her first full suspension bike and she loves it. Buttery smooth over bumps. She gets more use out of the dropper post than I expected - she needs to drop it to get back on after stopping, then raises it up to get going. Shocks are easily adjustable, geometry is right for her size. One thing I'd probably point out is that the SM frame should probably have 27.5" wheels vs. the 29s it came with. Overall, though, it's exactly what we hoped it would be. Now the whole family hits the trails together.