Rocky Mountain Thunderbolt Alloy 50 2019
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 130mm
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Travel Rear 130mm
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Fork Fox Performance Float 34
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Groupset XT, SLX
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Suspension Full
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Drivetrain 1 × 11
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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
Fox 34 Float Performance 130mm
Rear Shock
Fox Float DPS EVOL Performance
Drivetrain
Rear Derailleur
Shimano XT
Shift Levers
Shimano SLX
Cassette
Shimano SLX 11-46T
Crank
Race Face Aeffect Cinch 32T Steel
Bottom Bracket
Race Face BB92 24mm
Chain
KMC X11-1
Wheels
Front Hub
Rocky Mountain Sealed Boost 15mm
Rear Hub
DT Swiss 370 Boost 148mm
Rims
Sun Helix TR25 SL Tubeless Compatible - Tape | Valves | Sealant Not Incl
Spokes
WTB 2.0-1.8
Tires
Maxxis Minion DHR II Folding 27.5 x 2.3 / Maxxis Minion DHR II Folding 27.5 x 2.3
Brakes
Brakes
Shimano MT500 / Shimano RT66 180mm / Shimano RT66 180mm
Brake Levers
Shimano MT500
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
Seatpost
Race Face Aeffect Dropper 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 | 1.43 mm | 1.46 mm | 1.5 mm | 1.52 mm | 1.36 mm | 1.39 mm | 1.42 mm | 1.45 mm | 1.31 mm | 1.34 mm | 1.37 mm | 1.39 mm | 1.27 mm | 1.3 mm | 1.32 mm | 1.34 mm | 1.24 mm | 1.25 mm | 1.28 mm | 1.3 mm |
| Bottom Bracket Height | 342 mm | 333 mm | 327 mm | 319 mm | 342 mm | 333 mm | 327 mm | 319 mm | 342 mm | 333 mm | 327 mm | 319 mm | 342 mm | 333 mm | 327 mm | 319 mm | 342 mm | 333 mm | 327 mm | 319 mm |
| Front Center | 674 mm | 678 mm | 676 mm | 678 mm | 706 mm | 710 mm | 707 mm | 710 mm | 732 mm | 736 mm | 732 mm | 736 mm | 759 mm | 762 mm | 759 mm | 763 mm | 791 mm | 795 mm | 792 mm | 795 mm |
| Rake | 43 mm | 44 mm | 45 mm | 43 mm | 44 mm | 45 mm | 46 mm | 43 mm | 44 mm | 44 mm | 43 mm | 43 mm | 45 mm | 44 mm | 44 mm | 43 mm | 45 mm | 44 mm | 44 mm | 42 mm |
| Trail | 100 mm | 97 mm | 106 mm | 106 mm | 99 mm | 96 mm | 105 mm | 106 mm | 99 mm | 97 mm | 108 mm | 106 mm | 98 mm | 97 mm | 107 mm | 106 mm | 98 mm | 97 mm | 107 mm | 107 mm |
| Stack | 579 mm | 582 mm | 587 mm | 590 mm | 588 mm | 591 mm | 596 mm | 600 mm | 597 mm | 600 mm | 606 mm | 609 mm | 606 mm | 610 mm | 615 mm | 618 mm | 620 mm | 623 mm | 629 mm | 633 mm |
| Reach | 404 mm | 399 mm | 392 mm | 387 mm | 431 mm | 426 mm | 419 mm | 415 mm | 454 mm | 449 mm | 442 mm | 437 mm | 476 mm | 471 mm | 465 mm | 460 mm | 502 mm | 498 mm | 491 mm | 486 mm |
| Top Tube Length | 551 mm | 552 mm | 554 mm | 555 mm | 580.4 mm | 582 mm | 584 mm | 585 mm | 605 mm | 607 mm | 609 mm | 610 mm | 630 mm | 632 mm | 634 mm | 635 mm | 660 mm | 662 mm | 664 mm | 665 mm |
| Seat Tube Angle | 75.6 ° | 75.1 ° | 74.4 ° | 73.9 ° | 75.6 ° | 75.1 ° | 74.4 ° | 73.9 ° | 75.6 ° | 75.1 ° | 74.4 ° | 73.9 ° | 75.6 ° | 75.1 ° | 74.4 ° | 73.9 ° | 75.6 ° | 75.1 ° | 74.4 ° | 73.9 ° |
| 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 | 67.6 ° | 67.1 ° | 66.4 ° | 65.9 ° | 67.6 ° | 67.1 ° | 66.4 ° | 65.9 ° | 67.6 ° | 67.1 ° | 66.4 ° | 65.9 ° | 67.6 ° | 67.1 ° | 66.4 ° | 65.9 ° | 67.6 ° | 67.1 ° | 66.4 ° | 65.9 ° |
| 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 | 1105 mm | 1109 mm | 1107 mm | 1111 mm | 1137 mm | 1141 mm | 1139 mm | 1143 mm | 1163 mm | 1167 mm | 1164 mm | 1169 mm | 1190 mm | 1193 mm | 1191 mm | 1196 mm | 1222 mm | 1226 mm | 1224 mm | 1228 mm |
| Bottom Bracket Drop | 13 mm | 10 mm | 28 mm | 24 mm | 13 mm | 10 mm | 28 mm | 24 mm | 13 mm | 10 mm | 28 mm | 24 mm | 13 mm | 10 mm | 28 mm | 24 mm | 13 mm | 10 mm | 28 mm | 24 mm |
| Standover Height | 804 mm | 803 mm | 799 mm | 798 mm | 804 mm | 803 mm | 799 mm | 798 mm | 804 mm | 803 mm | 799 mm | 798 mm | 804 mm | 803 mm | 799 mm | 798 mm | 804 mm | 803 mm | 799 mm | 798 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 50 completes the Rockymountain Thunderbolt model. Rocky Mountain released 53 bikes variations of this model so far. You can get a glimpse at all models from 2019, by clicking on this link.
Model range prices
Rocky Mountain Thunderbolt Alloy 10 2019 is the cheapest bike model and costs 1999$. Rocky Mountain Thunderbolt Carbon 90 BC Edition 2019 is the most expensive one and costs 5999$.
Safety
When cycling always take safety very seriously. Wear a helmet, obey the traffic rules and wear hi-vis clothes. In short, take care of yourself so others can take care of you.
Average price for Trail bikes
According to our math, the average price for a trustworthy Trail bike is 2762$. However, you could also get a good Trail bike even if you pay a lower amount than the average price. As a general rule of thumb, you should always read reviews about the bike and its components before buying it to ensure you don’t pay too much.
When Rocky Mountain released this model in 2019, its price was 3349$. Comparing this to the average Trail bike price, we see that the price is 21.25% higher.
Internal Cable Routing
This bike has an internal cable routing. As a result, this helps to preserve the bike’s cables. No more cables around your bike.
Overview of components
Fork
Rocky Mountain Thunderbolt Alloy 50 2019 bike is equipped with the Fox Performance Float 34 fork, and has 130mm travel. Bike forks absorb the shocks and give you a smooth and pleasant ride. In short, you should always ensure you have a good fork when purchasing a bike.
Rear Shock
From the factory, it comes with the Fox Float DPS EVOL Performance rear shock model, which has a travel of 130mm. Rear shocks improve riding comfort and give you greater control over all terrains. To sum up, get a full-suspension bike if you want the smoothest rides.
Wheels size
As for the wheels, Rocky Mountain Thunderbolt Alloy 50 2019, has a 27.5″ aluminum model. These wheels will provide you with more control over the bike. However, these wheels have a slower top speed if you compare them to 29″ wheels.
Brakes
Nothing is more important on a bike than its ability to brake properly. Rocky Mountain Thunderbolt Alloy 50 is equipped with Hydraulic Disc brakes. Hydraulic disc brakes are perfect for mountain biking, road cycling, and commuting. To sum up, these are ideal for anyone.
Dropper post
The Rocky Mountain model is also equipped 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.
