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Today’s DealsThunderbolt 770
A 27.5″ aluminum frame full suspension trail bike with high-end components.
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Manufacturer Price
3999 US$(3489 €)| Weight | 12,8 kg |
|---|---|
| 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 |
156cm – 166cm
163cm – 174cm
171cm – 182cm
179cm – 189cm
185cm – 195cm
🐐 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
Rocky Mountain claims they have optimized the design.
FAST AS LIGHTNING
The Thunderbolt has made my time climbing far more enjoyable than before
an electronic shifting 27.5-inch XC rig sure to draw both cheers and jeers
Feedback?
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

ene 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 from Crest rims and XT hubs
Excellent climbing efficiency and technical climbing agility
Comfortable upright seated position
Remote CTD lever for on-the-fly suspension adjustment
Supple Fox RP23 shock with progressive curve
Snappy corner exits when ridden actively
Zero frame issues over three months
Top tube slightly small for 5'10" rider
Fox 32 fork deflects in aggressive terrain
XT brakes fade in extended steep/chunky terrain due to small rotors
No dropper post (resolved on 2015 models)
Stock tires (Continental X-King 2.2") inadequate in wet/technical conditions
sept 2014 · Don Palermini
Rocky Mountain’s Thunderbolt 799 MSL an electrifying XC rig with a shocking price tag. - Mtbr.com
ago 2014 · Dirt HQ
Carbon continues to infiltrate every corner of the market, the latest to turn to the black stuff is Rocky Mountain Thunderbolt...

ago 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 9 de septiembre
Last updated 14 de abril
Not listed for 1,886 days