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2020 Rocky Mountain Thunderbolt Alloy 30

Launched at $2,599Lists today at $2,599 (2026-09)

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What a used one is worth

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New

$1,336

$844 to $1,627

Like new

$1,269

$802 to $1,546

Excellent

$1,202

$760 to $1,465

Good

$1,002

$633 to $1,220

Fair

$735

$464 to $895

For parts

$401

$253 to $488

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: 2020
Category: Mountain · trail
Frame material: aluminum
Sizes: XS, S, M, L, XL
Wheel size: 27.5
Launch MSRP (US): $2,599
Current list price: $2,599 (as of 2026-09)

Drivetrain

Speeds: 12
Groupset: SRAM SX Eagle
Electronic: false

Build

Fork: RockShox Sektor RL 140mm 37mm Offset
Stem: Rocky Mountain AM
Tires: Maxxis Minion DHR II WT EXO Tubeless Ready 27.5 x 2.4 / Maxxis Minion DHR II WT EXO Tubeless Ready 27.5 x 2.4
Brakes: Shimano MT400 2 Piston / Shimano RT54 180mm / Shimano RT54 180mm
Saddle: WTB Volt Race 142
Wheels: WTB ST i30 TCS 2.0 Tubeless rims; hubs: Shimano MT400 Boost 15mm / Shimano MT400 Boost 148mm
Cassette: Sram PG-1210 11-50T
Crankset: Sram SX Eagle 34T
Seatpost: Rocky Mountain Toonie Drop 30.9mm
Shifters: Sram SX Eagle
Handlebar: Rocky Mountain AM 760mm
Weight kg: 14.2
Rear shock: RockShox Deluxe Select+ RT
Travel rear mm: 140
Rear derailleur: Sram SX Eagle
Travel front mm: 140

Geometry

L: Reach mm: 459; Stack mm: 607; Chainstay mm: 425; Wheelbase mm: 1188; Head angle deg: 66.6; Seat angle deg: 74.6
M: Reach mm: 436; Stack mm: 598; Chainstay mm: 425; Wheelbase mm: 1161; Head angle deg: 66.6; Seat angle deg: 74.6
S: Reach mm: 414; Stack mm: 588; Chainstay mm: 425; Wheelbase mm: 1135; Head angle deg: 66.6; Seat angle deg: 74.6
XL: Reach mm: 485; Stack mm: 621; Chainstay mm: 425; Wheelbase mm: 1220; Head angle deg: 66.6; Seat angle deg: 74.6
XS: Reach mm: 386; Stack mm: 579; Chainstay mm: 425; Wheelbase mm: 1103; Head angle deg: 66.6; Seat angle deg: 74.6

Launch price read from Rocky Mountain's US model-year page captured 2019-08 (inside the model year). Geometry is the Neutral position of the adjustable geometry chip. 2 factory colorways.

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