Inspection
Frame condition
Inspect the frame, fork, welds, and high-stress areas for cracks, dents, or prior repairs.
Rocky Mountain
2020 Rocky Mountain Thunderbolt Alloy 50
Previous used estimate
$1,085 - $1,116
Actual value depends on condition, size, and local demand.
Value Guide market data · 2020 Rocky Mountain Thunderbolt Alloy 50
12-month projected trend
10%
Direction and magnitude, not judgment
vs. category average
7%
Drops faster than category avg
Price over time - 2020 Rocky Mountain Thunderbolt Alloy 50
Values based on actual sales data. Enter your bike's specifics to get a precise valuation.
All Thunderbolt model years
Overview
About this bike
The Thunderbolt is our vision of a perfect XC-trail bike. Quick and nimble, the Thunderbolt is total livewire. Whether it’s powering up technical climbs or popping off every trail feature in sight, its 27.5" wheels and 140mm of rear travel makes this bike ready and capable for when you’re feeling creative with line choice. Our RIDE-9 adjustment system gives you the power to further adjust geometry and ride characteristics to your liking. - FORM Alloy frame - Fox 34 Float Performance 140mm fork - Fox Float DPS EVOL Performance shock - Shimano SLX/XT 12-speed drivetrain - WTB ST Light i30 rims w/Maxxis Minion DHR tires - Race Face Aeffect R dropper post
Specifications
- Subtype
- Trail / Enduro
- Category
- Mountain
- Component Fork
- Fox 34 Float Performance 140mm 37mm Offset
- Component Hubs
- Front: Rocky Mountain Sealed Rear: DT Swiss 370
- Component Size
- X-Small, Small, Medium, Large, X-Large
- Component Stem
- Rocky Mountain AM
- Product Family
- Thunderbolt
- Component Axles
- Front: 15 x 110mm Boost thru-axle Rear: 12 x 148mm Boost thru-axle
- Component Chain
- Shimano HG7100
- Component Color
- Dark Grey/Black, Black/Green
- Component Frame
- FORM Alloy, Full Sealed Cartridge Bearings, Press Fit BB, Internal Cable Routing, 2-Bolt ISCG05 Tabs, RIDE-9 Adjustable Geometry + Suspension Rate
- Component Brakes
- Shimano MT500 2 Piston / Shimano RT66 180mm rotors
- Component Saddle
- WTB Volt Race 142
- Component Headset
- FSA Orbit NO.57E
- Component Cassette
- Shimano SLX 10-51T
- Component Crankset
- Race Face Aeffect Cinch
- Component Shifters
- Shimano SLX
- Component Handlebar
- Rocky Mountain AM 760mm
- Component Seat Post
- Race Face Aeffect R Dropper 30.9mm
- Component Chainrings
- 34T Steel
- Component Front Tire
- Maxxis Minion DHR II WT EXO Tubeless Ready 27.5 x 2.4"
- Component Rear Shock
- Fox Float DPS EVOL Performance
- Component Tape Grips
- Rocky Mountain Lock On Light
- Component Brake Levers
- Shimano MT500
- Component Bottom Bracket
- Shimano SM-BBMT500
- Component Rear Derailleur
- Shimano XT
- Rear Shock
- Fox Float DPS EVOL Performance
- Hubs
- Front: Rocky Mountain Sealed Rear: DT Swiss 370
- Crankset
- Race Face Aeffect Cinch
- Bottom Bracket
- Shimano SM-BBMT500
- Chain
- Shimano HG7100
- Saddle
- WTB Volt Race 142
- Handlebar
- Rocky Mountain AM 760mm
- Headset
- FSA Orbit NO.57E
- Rear Derailleur
- Shimano XT
- Stem
- Rocky Mountain AM
- Axles
- Front: 15 x 110mm Boost thru-axle Rear: 12 x 148mm Boost thru-axle
- Brake Levers
- Shimano MT500
- Brakes
- Shimano MT500 2 Piston / Shimano RT66 180mm rotors
- Cassette
- Shimano SLX 10-51T
- Chainrings
- 34T Steel
- Fork
- Fox 34 Float Performance 140mm 37mm Offset
- Frame
- FORM Alloy, Full Sealed Cartridge Bearings, Press Fit BB, Internal Cable Routing, 2-Bolt ISCG05 Tabs, RIDE-9 Adjustable Geometry + Suspension Rate
- Seat Post
- Race Face Aeffect R Dropper 30.9mm
- Shifters
- Shimano SLX
- Tape/Grips
- Rocky Mountain Lock On Light
- Color
- Black/Green
- Size
- X-Large
- Front Tire
- Maxxis Minion DHR II WT EXO Tubeless Ready 27.5 x 2.4"
What to check when buying used
Inspection
Drivetrain wear
Check chain stretch, cassette teeth, chainrings, and shifting under load before negotiating price.
Inspection
Service history
Ask for service records covering bearings, brakes, drivetrain, and any frame or fork warranty work.
Inspection
Suspension service
Confirm fork and rear shock service intervals and check pivot bearings for play.