Rocky Mountain Thunderbolt Carbon 30

Name: Rocky Mountain Thunderbolt Carbon 30
Brand: Rocky Mountain

2018 MountainTrail

Last known price: $3,499

Prices shown first for United States
Travel: 130 / 130 mm Fork / rear shock
Wheels: 27.5″, 26″
Drivetrain: 1 × 11 32t / 11–42t
Gear range: 382%
Weight: 12.45 kg 27.4 lb · Reference configuration not specified
Frame: Carbon
Brakes: Hydraulic disc

Sizes

Size guide

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

The manufacturer did not publish rider heights for these sizes.

Components

19 of 21 identified

Parts found in a manufacturer catalog show their brand, model and key numbers, and the steps show how precisely they are identified: brand, series, model, or the exact product. The info button has every detail and the text the manufacturer published.

Frame and fork

1 part

Frame

SMOOTHWALL™ Carbon. Full Sealed Cartridge Bearings. Press Fit BB. Internal Cable Routing. 2-Bolt ISCG05 Tabs. RIDE-9™ Adjustable Geometry + Suspension Rate / SMOOTHWALL™ rear triangle Not identified

RIDE-9

Suspension

2 parts

Drivetrain

6 parts

Brakes

1 part

Brakes
- SRAM Level

Wheels and tires

5 parts

Front hub
- Rocky Mountain
Rear hub
- SRAM
Rims

Sun Helix TR25 SL Tubeless Compatible - Tape | Valves | Sealant Not Incl Not identified
Spokes
- WTB
Tires
- Maxxis Minion

Cockpit and contact points

6 parts

Sizes and geometry

20 sizes Open in the geometry plotter

Complete rider-height ranges are not published for these sizes. You can still explore the geometry below.

Size MD Steep

Table

Reach 442mm

Stack 593mm

Wheelbase 1160mm

Head angle 67.1°

Seat angle 75.1°

Every size is drawn to the same scale, in millimeters. Explanatory schematic on an assumed 26″ wheel; exact published values are in the table below.

Size Reach Stack

Complete manufacturer geometry table 20 published sizes

Complete manufacturer geometry by size
Measurement
Reachmm	397	392	385	380	424	419	412	408	447	442	435	430	469	464	458	453	495	491	484	479
Stackmm	572	575	580	583	581	584	589	593	590	593	599	602	599	603	608	611	613	616	622	626
Top tube lengthmm	544	545	547	548	573.4	575	577	578	598	600	602	603	623	625	627	628	653	655	657	658
Seat tube lengthmm	356	356	356	356	394	394	394	394	432	432	432	432	471	471	471	471	509	509	509	509
Head tube lengthmm	100	100	100	100	110	110	110	110	120	120	120	120	130	130	130	130	145	145	145	145
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°
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°
Chainstay lengthmm	424	424	426	427	424	424	426	427	424	424	426	427	424	424	426	427	424	424	426	427
Wheelbasemm	1098	1102	1100	1104	1130	1134	1132	1136	1156	1160	1157	1162	1183	1186	1184	1189	1215	1219	1217	1221
Front centermm	674	678	676	678	706	710	707	710	732	736	732	736	759	762	759	763	791	795	792	795
Bottom bracket dropmm	13	10	28	24	13	10	28	24	13	10	28	24	13	10	28	24	13	10	28	24
Bottom bracket heightmm	342	333	327	319	342	333	327	319	342	333	327	319	342	333	327	319	342	333	327	319
Standover heightmm	797	796	792	791	797	796	792	791	797	796	792	791	797	796	792	791	797	796	792	791
Fork rakemm	43	44	45	43	44	45	46	43	44	44	43	43	45	44	44	43	45	44	44	42
Trailmm	100	97	106	106	99	96	105	106	99	97	108	106	98	97	107	106	98	97	107	107
Stack/reach ratio	1.44	1.47	1.51	1.53	1.37	1.39	1.43	1.45	1.32	1.34	1.38	1.40	1.28	1.30	1.33	1.35	1.24	1.26	1.29	1.31

Not published by the manufacturer: Front travel, Rear travel, Crank length, Handlebar width, Stem length, Stem angle, Seatpost length and Dropper post travel.

Specifications

Frame and fork

Intended fit: Unisex
Frame material: Carbon
Bicycle weight: 12.45 kg

27.4 lb

Suspension

Suspension configuration: Full suspension
Front travel: 130 mm
Rear travel: 130 mm

Drivetrain

Derived by Bikelake

Front chainrings: 1
Smallest chainring: 32
Largest chainring: 32
Rear sprockets: 11
Smallest sprocket: 11
Largest sprocket: 42
Lowest gear: 19.8 in
Highest gear: 75.6 in

Wheels and brakes

Wheel configuration: Same size
Brake type: Hydraulic disc

Fit and controls

Seatpost: Rigid seatpost
Shifting: Mechanical

Additional specifications

Bottom bracket standard: BB86/BB92
Fork spring: Air
Tire width: 2.3″
Wheel material: Aluminum
Wheel size: 27.5″, 26″

Technical analysis

4 measures

How these figures sit among bicycles of the same class and model year. Context, not a ranking.

Front travel

130 mm

This value is within the central range for this class.

Cohort: Mountain / Trail Model year: 2018
Sample: 916 bicycles with this information
Coverage: 98.6% of the class

Lowest gear

19.8 gear inches

This value is above the central range for this class.

Cohort: Mountain / Trail Model year: 2018
Sample: 836 bicycles with this information
Coverage: 89.9% of the class

Highest gear

75.6 gear inches

This value is within the central range for this class.

Cohort: Mountain / Trail Model year: 2018
Sample: 836 bicycles with this information
Coverage: 89.9% of the class

Shifting

Mechanical

25 of 929 bicycles with this information use electronic shifting.

Cohort: Mountain / Trail Model year: 2018
Sample: 929 bicycles with this information
Coverage: 100.0% of the class

Gearing

Estimated speeds at 80 rpm

Lowest gear: 7.6 km/h
Highest gear: 29.0 km/h

Total gear range 382%

Technical details and class reference

These speeds describe the gearing at the selected cadence, not how fast you can ride.
Calculated from published gear-inch values and their wheel-size assumptions.
These gearing values describe the bicycle, not a selected frame size.
A 100% range means one ratio; 500% means the highest ratio is five times the lowest.
For e-bikes, motor assistance cutoff is not represented.

Gear-inch range

Lower gear-inch values travel less distance per pedal revolution; higher values travel farther.

This bicycle: 19.8–75.6 gear inches
Class reference (p10–p90): 16.5–93.5 gear inches; The band runs from p10 for the lowest gear to p90 for the highest gear.

Cohort: Mountain / Trail Model year: 2018
Lowest gear: 836 bicycles with this information, 89.9% of the class
Highest gear: 836 bicycles with this information, 89.9% of the class

Lineup changes

The published facts that differ across this family's builds and from the same model a year earlier. Missing information never counts as zero.

Differences across 2018 builds

Differences across 2018 builds
Specification	This bicycle Rocky Mountain Thunderbolt Carbon 30	Rocky Mountain Thunderbolt Alloy 10	Rocky Mountain Thunderbolt Alloy 30	Rocky Mountain Thunderbolt Alloy 50	Rocky Mountain Thunderbolt Carbon 50	Rocky Mountain Thunderbolt Carbon 70
Frame
Frame material	Carbon	Aluminum	Aluminum	Aluminum	Carbon	Carbon
Bicycle weight	12.45 kg	Not informed	Not informed	Not informed	12.26 kg	11.8 kg
Suspension
Front travel	130 mm	120 mm	130 mm	130 mm	130 mm	130 mm
Rear travel	130 mm	120 mm	120 mm	120 mm	130 mm	130 mm
Drivetrain
Front chainrings	1	2	1	1	1	1
Smallest chainring	32	22	32	32	34	34
Largest chainring	32	36	32	32	34	34
Rear sprockets	11	Not informed	11	11	12	12
Smallest sprocket	11	11	11	11	10	10
Largest sprocket	42	36	42	42	50	50
Lowest gear	19.8 in	16.8 in	21.0 in	21.0 in	17.7 in	17.7 in
Highest gear	75.6 in	90.0 in	80.0 in	80.0 in	88.4 in	88.4 in
Cockpit
Seatpost	Rigid seatpost	Rigid seatpost	Rigid seatpost	Dropper seatpost	Dropper seatpost	Dropper seatpost
Other specifications
Tire width	2.3″	2.25″	2.3″	2.3″	2.3″	2.3″
Wheel size	27.5″ / 26″	27.5″	27.5″	27.5″	27.5″ / 26″	27.5″ / 26″