2020 Rocky Mountain Thunderbolt A50 MTB Black

27.5" Full Suspension

Out of Stock

36 Months Interest Free 36 Months Interest Free

Nimble Geometry

The Thunderbolt is designed to be quick and nimble whether you climb steep hills or hitting every trail feature.

Ride 9 Adjustment

Ride 9 offers you 9 positions to fine tune your geometry with a pair of allen keys to make it easy.

12 Speed SLX Groupset

New Shimano SLX groupset giving you 12 speeds to use as well as a big 51 tooth sprocket to get up even the steepest hills.

Strong Alloy Frame

The Alloy frame is designed to ensure strength, weight, and ride quality.


Fast as lightning!

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. The frame is available in both carbon and alloy, and our RIDE-9 adjustment system gives you the power to further adjust geometry and ride characteristics to your liking.

Size Specific tune

Size Specific Tune ensures that riders of all sizes get the right balance of small-bump compliance, mid-stroke support, and end-stroke progressiveness. Our design team does custom shock tunes based on real world field testing, and adjusts each tune for specific frame sizes.

FORM™ alloy

FORM™ tubesets utilize premium materials to meet our strict requirements. Each FORM™ tube that we create is engineered for its specific purpose within the frame, ensuring optimized strength, weight, and ride quality.

RIDE-9 adjustment system

The RIDE-9™ adjustment system allows riders to quickly fine-tune their geometry and suspension with a pair of Allen keys. Nine configurations are possible thanks to two interlocking chips.

Adjust your RIDE-9™ position for geometry before considering suspension effects, or variables like air pressure and shock compression. Make gradual, incremental changes, take notes, and be methodical. Don’t adjust in a hurry before a big ride. Take your time and enjoy the process.

Smoothlink suspension

Smoothlink™ suspension is efficient yet supple when you’re on the pedals and across a wide range of gears. It features a controlled end-stroke and a rate-curve that feels more capable than the travel would suggest. This four-bar suspension design philosophy is centred on ride characteristics; each bike platform we develop balances variables like anti-squat, axle path, chain growth, rate curve, anti-rise, etc. to achieve the legendary Rocky Mountain ride feel.

SPECIFICATIONS

frame FORM? Alloy. Full Sealed Cartridge Bearings. Press Fit BB. Internal Cable Routing. 2-Bolt ISCG05 Tabs. RIDE-9? Adjustable Geomet
sizes XS - S - M - L - XL
fork Fox 34 Float Performance 140mm 37mm Offset
shock Fox Float DPS EVOL Performance
rear travel 140mm
headset FSA ORBIT NO.57E
stem ROCKY MOUNTAIN AM
handlebar ROCKY MOUNTAIN AM 760MM
grips Rocky Mountain Lock On Light
brakes Shimano MT500 2 Piston / Shimano RT66 180mm / Shimano RT66 180mm
brake levers Shimano MT500
shifters Shimano SLX
rear derailleur SHIMANO XT
cranks & chainrings Race Face Aeffect Cinch 34T Steel
bottom bracket Shimano SM-BBMT500
cassette Shimano SLX 10-51T
chain Shimano HG7100
front hub ROCKY MOUNTAIN SEALED BOOST 15MM
rear hub DT Swiss 370 Boost 148mm
spokes DT Swiss Competition 2.0/1.8/2.0
rims WTB ST Light i30 TCS 2.0 Tubeless
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
seatpost Race Face Aeffect R Dropper 30.9mm
saddle WTB Volt Race 142
weight 14.2 KG / 31.3 LBS

SPECIFICATIONS

FRAME FORM? Alloy. Full Sealed Cartridge Bearings. Press Fit BB. Internal Cable Routing. 2-Bolt ISCG05 Tabs. RIDE-9? Adjustable Geomet
SIZES XS - S - M - L - XL
Fork Fox 34 Float Performance 140mm 37mm Offset
Shock Fox Float DPS EVOL Performance
REAR TRAVEL 140mm
Headset FSA ORBIT NO.57E
Stem ROCKY MOUNTAIN AM
Handlebar ROCKY MOUNTAIN AM 760MM
GRIPS Rocky Mountain Lock On Light
BRAKES Shimano MT500 2 Piston / Shimano RT66 180mm / Shimano RT66 180mm
Brake Levers Shimano MT500
Shifters Shimano SLX
Rear Derailleur SHIMANO XT
CRANKS & CHAINRINGS Race Face Aeffect Cinch 34T Steel
Bottom Bracket Shimano SM-BBMT500
Cassette Shimano SLX 10-51T
Chain Shimano HG7100
FRONT HUB ROCKY MOUNTAIN SEALED BOOST 15MM
REAR HUB DT Swiss 370 Boost 148mm
SPOKES DT Swiss Competition 2.0/1.8/2.0
RIMS WTB ST Light i30 TCS 2.0 Tubeless
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
Seatpost Race Face Aeffect R Dropper 30.9mm
Saddle WTB Volt Race 142
Weight 14.2 KG / 31.3 LBS
Bike Category Trail
Fork Brand Fox
Fork Travel 121 - 140mm
Frame Material Alloy
groupset brand Shimano
groupset model SLX
Pedals Included No
Shock Travel 121 - 140mm
Nimble Geometry The Thunderbolt is designed to be quick and nimble whether you climb steep hills or hitting every trail feature.
Ride 9 Adjustment Ride 9 offers you 9 positions to fine tune your geometry with a pair of allen keys to make it easy.
12 Speed SLX Groupset New Shimano SLX groupset giving you 12 speeds to use as well as a big 51 tooth sprocket to get up even the steepest hills.
Strong Alloy Frame The Alloy frame is designed to ensure strength, weight, and ride quality.

* All specifications listed are subject to change without notice. Please note that our specifications may be impacted by manufacturer component substitution changes caused by high global demand for bikes and resulting supply chain issues in the bike industry. We recommend confirming the specifications with your local Evo Cycles showroom if you have any questions.

Bike Weight: Many brands strive to list the lowest possible weight, but in reality weight can vary based on frame size, finish, hardware and accessories. The most accurate way to determine any bike's weight is to have your local showroom weigh it for you.

Bike Size

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