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Rocky Mountain Thunderbolt Alloy 50

Rocky Mountain Thunderbolt Alloy 50
  • Color: Dark Grey/Black
  • Color: Black/Green
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This item is not permitted to be shipped, however it can be purchased online and picked up at your convenience.


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

Dropper posts

A dropper seatpost allows you to quickly lower and raise your seat to give you an ideal riding position. Dropping your seat creates a lower center of gravity for better control and maneuverability on steep descents, while raising it puts you at normal riding height for efficient pedaling.

Construction can include either hydraulic- or cable-actuated systems and the post’s travel can either be infinitely adjustable or stopped at set intervals, depending on the model.

Dropper seatposts come in standard lengths and diameters and vary by the amount of travel.


Frame FORM Alloy, Full Sealed Cartridge Bearings, Press Fit BB, Internal Cable Routing, 2-Bolt ISCG05 Tabs, RIDE-9 Adjustable Geometry + Suspension Rate
Fork Fox 34 Float Performance 140mm 37mm Offset
Headset FSA Orbit NO.57E
Rear Shock Fox Float DPS EVOL Performance
Axles Front: 15 x 110mm Boost thru-axle
Rear: 12 x 148mm Boost thru-axle
Rims/Wheels WTB ST Light i30 TCS 2.0 Tubeless
Hubs Front: Rocky Mountain Sealed
Rear: DT Swiss 370
Spokes DT Swiss Competition 2.0/1.8/2.0
Tires Maxxis Minion DHR II WT EXO Tubeless Ready 27.5 x 2.4"
Crankset Race Face Aeffect Cinch
Chainrings 34T Steel
Bottom Bracket Shimano SM-BBMT500
Chain Shimano HG7100
Rear Derailleur Shimano XT
Cassette/Rear Cogs Shimano SLX 10-51T
Shifters Shimano SLX
Handlebars Rocky Mountain AM 760mm
Tape/Grips Rocky Mountain Lock On Light
Stem Rocky Mountain AM
Brake Levers Shimano MT500
Brakes Shimano MT500 2 Piston / Shimano RT66 180mm rotors
Saddle WTB Volt Race 142
Seat Post Race Face Aeffect R Dropper 30.9mm

* Subject to change without notice.


Passage nord-est

Part Numbers

Option UPC MPN Store SKU
Dark Grey/Black / X-Small 770416260588 B0010XS2 B0010
Dark Grey/Black / Small 770416260601 B0010SM2 40702
Dark Grey/Black / Medium 770416260625 B0010MD2 40703
Dark Grey/Black / Large 770416260649 B0010LG2 B0010
Dark Grey/Black / X-Large 770416260663 B0010XL2 B0010
Black/Green / X-Small 770416260571 B0010XS1 B0010
Black/Green / Small 770416260595 B0010SM1 42598
Black/Green / Medium 770416260618 B0010MD1 B0010
Black/Green / Large 770416260632 B0010LG1 B0010
Black/Green / X-Large 770416260656 B0010XL1 B0010