Rocky Mountain Thunderbolt Alloy 50 2020

Bike details

Overview

Key information split into simple groups.

Bike summary

Category
- Mountain
- |
- Trail
Frame Aluminum
Wheels 27.5" / 26"
Travel Front 140mm
Travel Rear 140mm
Fork Fox Performance Float 34
Groupset XT, SLX
Suspension Full
Brakes Hydraulic Disc

Parts list

Components

Main components, grouped by system.

Bike components

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 140mm 37mm Offset

Rear Shock

Fox Float DPS EVOL Performance

Drivetrain

Rear Derailleur

Shimano XT

Shift Levers

Shimano SLX

Cassette

Shimano SLX 10-51T

Crank

Race Face Aeffect Cinch 34T Steel

Bottom Bracket

Shimano SM-BBMT500

Chain

Shimano HG7100

Wheels

Front Hub

Rocky Mountain Sealed Boost 15mm

Rear Hub

DT Swiss 370 Boost 148mm

Rims

WTB ST Light i30 TCS 2.0 Tubeless

Spokes

DT Swiss Competition 2.0/1.8/2.0

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

Shimano MT500 2 Piston / 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 142

Seatpost

Race Face Aeffect R Dropper 30.9mm

Fit data

Geometry

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"

Model Overview

Thunderbolt Alloy 50 is part of the Rockymountain Thunderbolt model. 53 bikes variations carry this model name so far. Take a sneak peek at all Rockymountain Thunderbolt bikes models from 2020, by clicking here.

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

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.

Trail bikes average price

If you want an acceptable Trail bike you should know that the average price is 2762$. However, this doesn’t mean that if you spend less money on a Trail bike, you couldn’t get a decent one. In conclusion, always check bike reviews and their components before making a purchase to make sure you don’t overpay.

This bike was released in 2020 and its price was 3399$. In conclusion, this bike price is 23.06% more expensive than the price of the average Trail bike.

Average weight for Trail bikes

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 50 it’s weighing 14.2 kg (31.31 lbs). At this weight, is a bit heavier than average. In other words, this model is 9.4% heavier than the average Trail bike.

Internal Cable Routing

Moreover, this bike comes with internal cable routing allowing you to keep the cables in a good condition. It also makes it look more professional.

Thunderbolt Alloy 50 components

Fork

Rocky Mountain Thunderbolt Alloy 50 2020 bike is equipped with the Fox Performance Float 34 fork, and has 140mm travel. Bike forks are perfect to absorb shocks and provide a great riding experience overall. In conclusion, always look for a fork with decent travel when you buy a bike.

Rear Shock

From the factory, it comes with the Fox Float DPS EVOL Performance rear shock model, which has a travel of 140mm. Rear shocks improve riding comfort and give you greater control over all terrains. 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 50 2020, 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

We ride faster and faster, so a good braking system is essential on a bike nowadays. The Thunderbolt Alloy 50 comes with Hydraulic Disc brakes. With Hydraulic Disc brakes, you’ll be able to stop on a dime, even in wet or icy conditions. To sum up, your safety is in good hands.

Dropper post

The Rocky Mountain model is also equipped with a dropper post. If you are a technical rider, a dropper post is essential. A dropper post provides increased safety while riding. The lever system, allows you to move your saddle up and down, which is very useful on climbs and descends.

Model years

Rocky Mountain Thunderbolt Alloy 50 2020

Key information split into simple groups.

Bike summary

Main components, grouped by system.

Bike components

Frame

Frame

Suspension Fork

Rear Shock

Drivetrain

Rear Derailleur

Shift Levers

Cassette

Crank

Bottom Bracket

Chain

Wheels

Front Hub

Rear Hub

Rims

Spokes

Tires

Brakes

Brakes

Brake Levers

Cockpit

Stem

Handlebar

Grips

Headset

Seat

Saddle

Seatpost

Numbers for sizing and ride feel.

Model Overview

Model range prices

Safety

Trail bikes average price

Average weight for Trail bikes

Internal Cable Routing

Thunderbolt Alloy 50 components

Fork

Rear Shock

Wheels size

Brakes

Dropper post

Related bike families.