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Today’s Deals2014 Rocky Mountain
Thunderbolt 770
A 27.5″ aluminum frame full suspension trail bike with high-end components.
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Manufacturer Price
$3,999| Weight | 28.2 lbs |
|---|---|
| Frame | Aluminum |
| Suspension | Full, 120 / 120mm |
| Fork | Fox Float 32 |
| Shock | Fox |
| Wheels | 27.5″ Aluminum |
| Drivetrain | 2 × 10 |
| Groupset | XTR, XT |
| Brakes | Shimano XT Hydraulic Disc |
5'1" – 5'6"
5'4" – 5'9"
5'7" – 6'0"
5'10" – 6'3"
6'0" – 6'5"
🐐 Estimated
None yet.
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Summary
The Rocky Mountain Thunderbolt is a versatile trail bike praised for its efficient climbing, playful yet capable downhill performance, and comfortable all-day ride quality. Its balanced geometry and Smoothlink suspension system contribute to snappy handling and a smooth ride. While it excels on flowy singletrack and technical climbs, some riders may find it less suited for aggressive descents or prefer updates like tubeless-ready rims and a dropper post.
Efficient climbing and playful downhill performance
Comfortable for all-day rides
Balanced geometry and Smoothlink suspension for snappy handling
Versatile on flowy singletrack and technical climbs
Stiff and efficient hydroformed frame
Relatively heavy XC setup
Lack of tubeless-ready rims and dropper post in some models
May require active riding style on descents
the Thunderbolt is just right for weekend trips to places like the Kingdom Trails, and for my everyday local XC trails
BikerumorRocky Mountain claims they have optimized the design.
Canadian Cycling MagazineFAST AS LIGHTNING
MBRThe Thunderbolt has made my time climbing far more enjoyable than before
NSMBan electronic shifting 27.5-inch XC rig sure to draw both cheers and jeers
MTBRFeedback?
View all reviews
Jun 2015 · Saris Mercanti
A few years ago when 29ers where still as widely misunderstood as fat bikes, there was a trend of building up mini DH bikes out of four inch travel slopestyle bikes. Those bikes were (and are) about the most the fun you could have on a trail, but they were terrible for racking up miles. …
May 2015 · McCoy
It’ll flow through any section of trail with the right amount of finesse and confidence
Jan 2015
The Rocky Mountain Thunderbolt proved itself as one of the most capable trail bikes in this year's Bible of Bike.
Oct 2014
“The Thunderbolt has made my time climbing far more enjoyable than before, and I get a small sense of satisfaction by simply cruising past people on the way up the hill with a smile and a wave…”
Lightweight (27 lbs) with low rotational mass wheels
Excellent climbing efficiency and agility
Comfortable upright seated position
Effective CTD remote suspension lockout
Zero frame issues during 3-month test
Progressive rear shock prevents bottom-out
Top tube slightly short for 5'10" rider
No dropper post (fixed on 2015 models)
XT brakes with small rotors fade in extended technical terrain
Fork deflection in aggressive terrain (XC-oriented Fox 32)
Limited in technical, chunky descents
Stock tires poor in wet conditions
Sep 2014 · Don Palermini
Rocky Mountain’s Thunderbolt 799 MSL an electrifying XC rig with a shocking price tag. - Mtbr.com
Aug 2014 · Dirt HQ
Carbon continues to infiltrate every corner of the market, the latest to turn to the black stuff is Rocky Mountain Thunderbolt...
Aug 2014 · Charles Bryer
With shorter chainstays, a lower stand-over, additional adjustability and improved pivot technologies the new 2015 carbon Thunderbolt MSL is Rocky
Feb 2014 · Danny Milner
Why the Rocky Mountain Thunderbolt is rejuvinating a brand
| Frame | FORM™ Alloy Custom Hydroformed Frame ABC™ Pivots Tapered Head Tube Press Fit BB Internal Cable Routing Internal \"Stealth\" Dropper Post Routing |
|---|---|
| Fork | Fox 32 Float 27.5 120 FIT Dual Remote CTD Travel: 120mm Spring Type: Air |
| Shock | Fox Float Dual Remote CTD Custom Race Valved Travel: 120mm |
| Bottom Bracket | Race Face Team XC Press Fit |
| Headset | Cane Creek Ten Series: ZS44mm Top / ZS56mm Bottom Tapered |
| Stem | Race Face Turbine 6° x 70-90mm |
| Handlebar | Race Face Turbine 3/4 Rise Ø31.8mm x 725mm x 9° Sweep |
| Saddle | WTB Silverado Race SL |
| Seatpost | Race Face Turbine 30.9mm x 400mm Type: Rigid |
| Grips | Rocky Mountain Lock On XC |
| Rear Derailleur | Shimano XTR Shadow Plus Direct Mount 10spd |
|---|---|
| Front Derailleur | Shimano SLX E Mount 2x10spd |
| Crank | Race Face Turbine 170-175mm 38/24T 2x10spd |
| Shifters | Shimano XT Rapid Fire I-Spec 2x10spd |
| Cassette | Shimano XT 11-36T 10spd |
| Chain | Shimano HG95 10spd |
| Brakes | Shimano XT Hydraulic Disc 180/160mm Type: Shimano XT Hydraulic Disc |
| Brake Levers | Shimano XT I-Spec Shifter Mount |
| Rims | Stan\'s ZTR Crest Tubeless Ready |
|---|---|
| Spokes | DT Swiss Competition |
| Front Hub | Shimano XT / Centerlock / 32H / 15mm Axle |
| Rear Hub | Shimano XT / Centerlock / 32H / 12 x 142mm Axle |
| Tires | Continental X King Folding 27.5\" x 2.2\" |
First added September 9
Last updated April 14
Not listed for 1,874 days