Rocky Mountain Thunderbolt Alloy 30 2020
Bike details
Key information split into simple groups.
Bike summary
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Frame Aluminum
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Wheels 27.5" / 26"
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Travel Front 140mm
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Travel Rear 140mm
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Fork RockShox Sektor
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Groupset SX Eagle
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Suspension Full
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Drivetrain 1 × 12
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Brakes Hydraulic Disc
Parts list
Main components, grouped by system.
Bike components
Frame
Frame
FORM Alloy. Full Sealed Cartridge Bearings. Press Fit BB. Internal Cable Routing. 2-Bolt ISCG05 Tabs. RIDE-9 Adjustable Geometry + Suspension Rate
Suspension Fork
RockShox Sektor RL 140mm 37mm Offset
Rear Shock
RockShox Deluxe Select+ RT
Drivetrain
Rear Derailleur
SRAM SX Eagle
Shift Levers
SRAM SX Eagle
Cassette
SRAM PG-1210 11-50T
Crank
SRAM SX Eagle 34T
Bottom Bracket
SRAM BB92 DUB
Chain
SRAM SX Eagle
Wheels
Front Hub
Shimano MT400 Boost 15mm
Rear Hub
Shimano MT400 Boost 148mm
Rims
WTB ST i30 TCS 2.0 Tubeless
Spokes
2.0 Stainless
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
Brakes
Brakes
Shimano MT400 2 Piston / Shimano RT54 180mm / Shimano RT54 180mm
Brake Levers
Shimano MT400
Cockpit
Stem
Rocky Mountain AM
Handlebar
Rocky Mountain AM 760mm
Grips
Rocky Mountain Lock On Light
Headset
FSA Orbit NO.57E
Seat
Saddle
WTB Volt Race 142
Seatpost
Rocky Mountain Toonie Drop 30.9mm
Fit data
Numbers for sizing and ride feel.
| Size | XS Steep | XS Steep | XS Slack | XS Slack | SM Steep | SM Steep | SM Slack | SM Slack | MD Steep | MD Steep | MD Slack | MD Slack | LG Steep | LG Steep | LG Slack | LG Slack | XL Steep | XL Steep | XL Slack | XL Slack |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Stack Reach Ratio | 1.46 mm | 1.48 mm | 1.52 mm | 1.55 mm | 1.39 mm | 1.41 mm | 1.45 mm | 1.47 mm | 1.34 mm | 1.36 mm | 1.39 mm | 1.42 mm | 1.3 mm | 1.31 mm | 1.34 mm | 1.37 mm | 1.25 mm | 1.27 mm | 1.3 mm | 1.32 mm |
| Bottom Bracket Height | 345 mm | 337 mm | 331 mm | 323 mm | 345 mm | 337 mm | 331 mm | 323 mm | 345 mm | 337 mm | 331 mm | 323 mm | 345 mm | 337 mm | 331 mm | 323 mm | 345 mm | 337 mm | 331 mm | 323 mm |
| Front Center | 678 mm | 682 mm | 679 mm | 682 mm | 710 mm | 713 mm | 711 mm | 714 mm | 736 mm | 740 mm | 737 mm | 740 mm | 762 mm | 766 mm | 764 mm | 767 mm | 795 mm | 798 mm | 796 mm | 799 mm |
| Rake | 44 mm | 44 mm | 44 mm | 44 mm | 45 mm | 42 mm | 44 mm | 44 mm | 44 mm | 43 mm | 44 mm | 44 mm | 44 mm | 43 mm | 44 mm | 43 mm | 44 mm | 43 mm | 43 mm | 43 mm |
| Trail | 102 mm | 100 mm | 111 mm | 108 mm | 101 mm | 103 mm | 111 mm | 108 mm | 102 mm | 102 mm | 111 mm | 108 mm | 102 mm | 102 mm | 111 mm | 109 mm | 102 mm | 102 mm | 112 mm | 109 mm |
| Stack | 582 mm | 585 mm | 590 mm | 593 mm | 591 mm | 595 mm | 600 mm | 603 mm | 600 mm | 604 mm | 609 mm | 612 mm | 610 mm | 613 mm | 618 mm | 622 mm | 623 mm | 627 mm | 633 mm | 636 mm |
| Reach | 399 mm | 394 mm | 387 mm | 382 mm | 426 mm | 422 mm | 415 mm | 410 mm | 449 mm | 444 mm | 437 mm | 432 mm | 471 mm | 467 mm | 460 mm | 455 mm | 498 mm | 493 mm | 486 mm | 481 mm |
| Top Tube Length | 552 mm | 553 mm | 555 mm | 556 mm | 582 mm | 583 mm | 585 mm | 586 mm | 607 mm | 608 mm | 610 mm | 611 mm | 632 mm | 633 mm | 635 mm | 636 mm | 662 mm | 663 mm | 665 mm | 667 mm |
| Seat Tube Angle | 75.1 ° | 74.6 ° | 73.9 ° | 73.5 ° | 75.1 ° | 74.6 ° | 73.9 ° | 73.5 ° | 75.1 ° | 74.6 ° | 73.9 ° | 73.5 ° | 75.1 ° | 74.6 ° | 73.9 ° | 73.5 ° | 75.1 ° | 74.6 ° | 73.9 ° | 73.5 ° |
| Seat Tube Length | 356 mm | 356 mm | 356 mm | 356 mm | 394 mm | 394 mm | 394 mm | 394 mm | 432 mm | 432 mm | 432 mm | 432 mm | 471 mm | 471 mm | 471 mm | 471 mm | 509 mm | 509 mm | 509 mm | 509 mm |
| Head Tube Angle | 67.1 ° | 66.6 ° | 65.9 ° | 65.5 ° | 67.1 ° | 66.6 ° | 65.9 ° | 65.5 ° | 67.1 ° | 66.6 ° | 65.9 ° | 65.5 ° | 67.1 ° | 66.6 ° | 65.9 ° | 65.5 ° | 67.1 ° | 66.6 ° | 65.9 ° | 65.5 ° |
| Head Tube Length | 100 mm | 100 mm | 100 mm | 100 mm | 110 mm | 110 mm | 110 mm | 110 mm | 120 mm | 120 mm | 120 mm | 120 mm | 130 mm | 130 mm | 130 mm | 130 mm | 145 mm | 145 mm | 145 mm | 145 mm |
| Chainstay Length | 431 mm | 431 mm | 433 mm | 434 mm | 431 mm | 431 mm | 433 mm | 434 mm | 431 mm | 431 mm | 433 mm | 434 mm | 431 mm | 431 mm | 433 mm | 434 mm | 431 mm | 431 mm | 433 mm | 434 mm |
| Wheelbase | 1109 mm | 1113 mm | 1111 mm | 1115 mm | 1141 mm | 1144 mm | 1143 mm | 1147 mm | 1167 mm | 1171 mm | 1169 mm | 1173 mm | 1193 mm | 1197 mm | 1196 mm | 1200 mm | 1226 mm | 1229 mm | 1228 mm | 1232 mm |
| Bottom Bracket Drop | 10 mm | 6 mm | 24 mm | 20 mm | 10 mm | 6 mm | 24 mm | 20 mm | 10 mm | 6 mm | 24 mm | 20 mm | 10 mm | 6 mm | 24 mm | 20 mm | 10 mm | 6 mm | 24 mm | 20 mm |
| Standover Height | 811 mm | 810 mm | 806 mm | 804 mm | 811 mm | 810 mm | 806 mm | 804 mm | 811 mm | 810 mm | 806 mm | 804 mm | 811 mm | 810 mm | 806 mm | 804 mm | 811 mm | 810 mm | 806 mm | 804 mm |
| Wheels | 27" | 26" | 27" | 26" | 27" | 26" | 27" | 26" | 27" | 26" | 27" | 26" | 27" | 26" | 27" | 26" | 27" | 26" | 27" | 26" |
About this model
Thunderbolt Alloy 30 is a Rockymountain Thunderbolt model. Rocky Mountain released 53 bikes variations of this model so far. You can get a glimpse at all models from 2020, by clicking on this link.
Model range prices
Rocky Mountain Thunderbolt Alloy 10 2020 is the most economical model, with a starting price of 2099$. Rocky Mountain Thunderbolt Carbon 90 2020 on the other hand costs 6899$, and is the most expensive model.
Safety
Your safety is a top priority so always wear a helmet when you ride your bike. Moreover, wear the right clothing. You want to be visible to other drivers, so avoid wearing dark clothing.
Average price for Trail bikes
According to our math, the average price for a trustworthy Trail bike is 2762$. However, paying less money than this amount doesn’t mean that you couldn’t get a great Trail bike. As a general rule of thumb, you should always read reviews about the bike and its components before buying it to ensure you don’t pay too much.
This bike was released in 2020 and its price was 2599$. In conclusion, this bike price is 6.27% lower than the price of the average Trail bike.
Trail bikes average weight
On a deeper look, we notice that the average weight of a Trail bike is 12.98 kg (28.62 lbs). Having an easier bike than average will give you a great advantage on climbs. However, a heavier bike will gain more speed on descends.
Rocky Mountain Thunderbolt Alloy 30 it’s weighing 14.2 kg (31.31 lbs). At this weight, is a bit heavier than average. In short, the average Trail bike weight is 9.4% lower than this one.
Internal Cable Routing
It’s also important to mention the internal cable routing that this bike has. In short, this will allow you to keep your bike cables in great condition. Say goodbye to hanging cables.
Thunderbolt Alloy 30 components
Fork
The Thunderbolt Alloy 30 comes factory-installed with the RockShox Sektor fork. This has a travel range of 140mm. Bike forks are good shock absorbers and provide a smooth ride and a great experience. To sum up, when buying a bicycle, make sure you get a fork that is capable of delivering decent travel.
Rear Shock
The shock that’s installed on this bike is RockShox Deluxe Select+ RT, with a travel distance of 140mm. Bike rear shocks are a great way to increase comfort on the bike and give you more control when riding on technical trails. To sum up, always consider getting a bike that has a rear shock as well.
Wheels size
As for the wheels, Rocky Mountain Thunderbolt Alloy 30 2020, has a 27.5″ aluminum model. 27.5″ wheels are a mixture between 29″ wheels and 26″ wheels. However, these wheels have a slower top speed if you compare them to 29″ wheels.
Brakes
We ride faster and faster, so a good braking system is essential on a bike nowadays. The Thunderbolt Alloy 30 comes with Hydraulic Disc brakes. Hydraulic disc brakes provide amazing stopping power, no matter what the terrain. To sum up, you can ride your bike with confidence.
Dropper post
Rocky Mountain Thunderbolt Alloy 30 comes with a dropper post. A dropper post is a must-have these days if you’re riding anything remotely technical. The main benefit of a dropper post is increased safety while riding. As mentioned above, the lever system allows you to quickly move the saddle out of the way when approaching descents or trail obstacles.
