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2021 Rocky Mountain

Thunderbolt Alloy 10

A 27.5″ aluminum frame full suspension trail bike with upper mid-range components.
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Manufacturer Price

$2,299
Weight33.3 lbs  
FrameAluminum
SuspensionFull, 140 / 150mm
ForkRockShox Recon Silver RL
ShockRockShox Deluxe Select+
Wheels27.5″ Aluminum
Drivetrain1 × 11
GroupsetDeore
BrakesShimano Hydraulic Disc
SeatpostDropper
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Insights
Ride Feel

Based on frame geometry and build specs.

Terrain
easyextreme
Handling
nimblestable
Thunderbolt Alloy 10
Other Trail bikes
Gearing

A bike with lower gearing will be easier to ride up steep hills, while a higher top end means it will pedal faster down hills.

Lowest gear

(climbing)

24 mph

Thunderbolt Alloy 10

26 mph

Similar Bikes

Highest gear

(descending)

Reviews
Loam Wolf
Review: Rocky Mountain Thunderbolt Carbon 90

Oct 2019

The Thunderbolt is for an experienced rider who wants to ride a rocket ship. A rider who knows how to get out of trouble quickly because rocket ships are hard to control. Get our full take on the Rocky Mountain Thunderbolt Carbon 90 BC Edition here!

Read Review

MTB Mag
[Tested] Rocky Mountain Thunderbolt Alloy 50

May 2019 · Simon Silver

This Winter we tested the $3,349 Rocky Mountain Thunderbolt Alloy 50 trail bike. For an entry level spec’d bike we were quickly impressed with the attention to detail, and features the frame sported. Video review below. Details & Specs • 27.5″ wheels • 130mm travel front and rear • Boost hub spacing •RIDE-9™ Adjustable Geometry + Suspension Rate • Aluminum front and rear triangle • Press Fit BB • Sealed cartridge bearing pivots • XS, S, M (tested), L, XL sizes The bike is fairly well refined, with a Race Face Crankset, and direct mount ring, internal cable routing, built

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BIKE Magazine
Review: Rocky Mountain Thunderbolt C30 | Bible of Bike Tests 2019

Feb 2019

Not radically changed, almost conservative, the Thunderbolt stays true to its intentions.

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Enduro Mountainbike Magazine
Rocky Mountain Thunderbolt Carbon 90 BC Edition Review

Dec 2018 · Christoph Bayer

The Rocky Mountain Thunderbolt BC Edition is guaranteed to put a smile on your face: it was by far the most agile bike in this group test.

Highs
  • Very playful

  • Beautiful frame

  • Comfortable suspension

Lows
  • The rear linkage lacks support

  • Nervous at speed

  • Small brake rotors

Read Review

Pinkbike
Review: Rocky Mountain Thunderbolt Carbon 70

Aug 2018 · Mike Levy

Like the other new bikes, you'll find blind pivots on the Thunderbolt that make for some pretty clean lines, as well as sealed bearings all around (including the lower shock mount) that replace the bushing system Rocky used previously.

Highs
  • Playful personality

  • Supple suspension action

  • So much adjustability

Lows
  • Requires more effort to ride fast on difficult trails than a 29er

  • Finicky suspension setup if you want to get the most out of it

  • So much adjustability

Read Review

Bikerumor
Long Term Review: The all-new Rocky Mountain Thunderbolt Carbon 50

Jul 2018 · Christophe Noel

We spent the last three months testing the new Rocky Mountain Thunderbolt Carbon 50.

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Dirt Mountainbike
Rocky Mountain Thunderbolt BC Edition

Mar 2018 · James Good

B is for Burly

Read Review

MTBR
2018 Rocky Mountain Thunderbolt debuts

Mar 2018 · Mtbr

Key changes to the new carbon frame are an increase in rear travel to 130mm, plus increases to stiffness and a lowering of the shock rate curve. - Mtbr.com

Read Review

Geometry
Specs
Build
Frame

FORM™ Alloy. Full Sealed Cartridge Bearings. Press Fit BB92. Internal Cable Routing. 2-Bolt ISCG05 Tabs. RIDE-9™ Adjustable Geometry + Suspension Rate FORM™ Alloy Rear Triangle

BB StandardBB86/BB92, Press Fit

Fork

RockShox Recon Silver RL 150mm | 37mm Offset

Travel150mm

Spring TypeAir

Shock

RockShox Deluxe Select+ | Sealed Bearing Eyelet | 25x8mm F Hardware | 210x55mm | Size-Specific tune in FAQ

Travel140mm

Bottom Bracket

Rocky Mountain Sealed BB92 - Shimano Compatible

Headset

FSA Orbit NO.57E | 36°x45° Bearings | 30.2mm x 41mm x 7.1mm Upper | 40mm x 51.8mm x 7.5mm Lower | 1.5" Crown Race

Stem

Rocky Mountain 31.8 AM | 5° Rise | All Sizes = 40mm

Handlebar

Rocky Mountain AM | 780mm Width | 25mm Rise | 9° Backsweep | 5° Upsweep | 31.8mm Clamp

Saddle

WTB Volt | Steel Rails | 142mm Width

Seatpost

Rocky Mountain Toonie Drop Composite 30.9mm | XS - SM = 125mm | MD - LG = 150mm | XL = 170mm

TypeDropper

Grips

Rocky Mountain Lock On Light

Groupset
Rear Derailleur

Shimano Deore 11spd

Crank

Rocky Mountain Microdrive 2 PC | 32T | 24mm Spindle | 170mm Crank Length

Shifters

Shimano Deore 11spd

Cassette

Shimano Deore 11-51T 11spd

Chain

KMC X11-1

Brakes

Shimano MT200 2 Piston | Resin Pads | RT30 180mm F Rotor | RT30 180mm R Rotor

TypeShimano Hydraulic Disc

Wheels
Rims

WTB ST i30 TCS 2.0 Tubeless | Tubeless Compatible | 32H

Spokes

2.0 Stainless

Front Hub

Shimano MT410 | 15mm Boost

Rear Hub

Shimano MT400 Boost 148mm | RMB Axle | 163mm x 12mm x 1.5mm

Tires

F: WTB Trail Boss Comp 27.5 x 2.4 // R: WTB Trail Boss Comp 27.5 x 2.4

Rider Notes
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First added August 11

Last updated January 12

Not listed for 1,966 days