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2018 Rocky Mountain Thunderbolt Alloy 10

Launched at $1,999Lists today at $1,999 (2026-09)

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What a used one is worth

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New

$870

$526 to $1,083

Like new

$826

$500 to $1,028

Excellent

$783

$473 to $974

Good

$652

$394 to $812

Fair

$478

$289 to $595

For parts

$261

$158 to $325

From the launch price, aged to 2026 and adjusted for condition. Guidance from our catalog, not an appraisal.

Overview

Brand: Rocky Mountain
Model family: Thunderbolt
Model year: 2018
Category: Mountain · trail
Frame material: aluminum
Sizes: XS, S, M, L, XL
Wheel size: 27.5
Launch MSRP (US): $1,999
Current list price: $1,999 (as of 2026-09)

Drivetrain

Groupset: Shimano Deore
Electronic: false

Build

Fork: RockShox Recon Silver Air 120mm
Stem: Rocky Mountain AM
Tires: Maxxis Ardent 27.5 x 2.25
Brakes: Shimano M315 160 mm
Saddle: WTB Volt Race
Wheels: WTB SX19 rims; hubs: Shimano TX505 / Shimano TX505
Cassette: Shimano HG-50 11-36T
Crankset: FSA Gamma Drive 36/22T
Seatpost: Rocky Mountain SL 30.9mm
Shifters: Shimano Deore
Handlebar: Rocky Mountain AM 760mm
Rear shock: RockShox Monarch RT
Travel rear mm: 120
Rear derailleur: Shimano Deore
Travel front mm: 120

Geometry

L: Reach mm: 446; Stack mm: 595; Chainstay mm: 421; Wheelbase mm: 1156; Head angle deg: 67.5; Seat angle deg: 74
M: Reach mm: 423; Stack mm: 585; Chainstay mm: 421; Wheelbase mm: 1130; Head angle deg: 67.5; Seat angle deg: 74
S: Reach mm: 401; Stack mm: 576; Chainstay mm: 421; Wheelbase mm: 1104; Head angle deg: 67.5; Seat angle deg: 74
XL: Reach mm: 472; Stack mm: 609; Chainstay mm: 421; Wheelbase mm: 1188; Head angle deg: 67.5; Seat angle deg: 74
XS: Reach mm: 378; Stack mm: 567; Chainstay mm: 421; Wheelbase mm: 1078; Head angle deg: 67.5; Seat angle deg: 74

Launch price read from Rocky Mountain's US model-year page captured 2017-10 (inside the model year). Geometry is the Neutral position of the adjustable geometry chip.

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