2021 Rocky Mountain Thunderbolt Alloy 30 Bike

(discontinued)

Discontinued

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Where To Buy
	Free shipping on orders over $50 (continental U.S. only). International shipping available. Some exclusions apply.	Browse available Bikes
	Free shipping on orders over $50 (continental U.S. only). International shipping available. Some exclusions apply.	Browse available Bikes

Specifications

Product

Rocky Mountain Thunderbolt Alloy 30 Bike

Model Year

2021

Riding Type

Trail

Enduro / All-Mountain

Rider

Unisex

Sizes and Geometry

XS (Slackest, Steepest)

SM (Slackest, Steepest)

MD (Slackest, Steepest)

LG (Slackest, Steepest)

XL (Slackest, Steepest)

Size	XS (Slackest, Steepest)	SM (Slackest, Steepest)	MD (Slackest, Steepest)	LG (Slackest, Steepest)	XL (Slackest, Steepest)
Top Tube Length	548mm, 545mm	578mm, 575mm	603mm, 600mm	628mm, 625mm	658mm, 655mm
Head Tube Angle	65.9°, 67.1°	65.9°, 67.1°	65.9°, 67.1°	65.9°, 67.1°	65.9°, 67.1°
Head Tube Length	100mm	110mm	120mm	130mm	145mm
Seat Tube Angle	73.9°, 75.1°	73.9°, 75.1°	73.9°, 75.1°	73.9°, 75.1°	73.9°, 75.1°
Seat Tube Length	356mm	394mm	432mm	471mm	509mm
Bottom Bracket Height	24mm drop, 10mm drop	24mm drop, 10mm drop	24mm drop, 10mm drop	24mm drop, 10mm drop	24mm drop, 10mm drop
Chainstay Length	426mm, 424mm	426mm, 424mm	426mm, 424mm	426mm, 424mm	426mm, 424mm
Wheelbase	1104mm, 1102mm	1136mm, 1134mm	1162mm, 1160mm	1189mm, 1186mm	1221mm, 1219mm
Standover	799mm, 804mm	799mm, 804mm	799mm, 804mm	799mm, 804mm	799mm, 804mm
Reach	380mm, 392mm	408mm, 419mm	430mm, 442mm	453mm, 464mm	479mm, 491mm
Stack	583mm, 575mm	593mm, 584mm	602mm, 593mm	611mm, 603mm	626mm, 616mm
Additional Info	Geometry adjustable via RIDE-9 flip chip at rear shock mount. Measurements with 2 values represent RIDE-9 geometry's Slackest and Steepest configurations; see Rocky Mountain's website for intermediate RIDE-9 geometry values.

Wheel Size

27.5" (650b)

Frame Material

Aluminum

Frame Material Details

FORM alloy; molded chainstay and down tube protection

Rear Travel

140mm

Rear Shock

RockShox Deluxe Select+, size-specific tune, 210mm x 55mm

Fork

RockShox Recon Gold RL, 37mm offset

Fork Travel

150mm

Head Tube Diameter

Tapered, 1.125" top, 1.5" bottom

Headset

FSA Orbit No.57E

Handlebar

Rocky Mountain AM, 780mm width, 9° backsweep, 5° upsweep, 31.8mm clamp diameter, 25mm rise

Stem

Rocky Mountain 31.8 AM, 5° rise, 40mm length, 31.8mm bar clamp

Grips

Rocky Mountain Light, lock-on

Brakes

Shimano MT4100, 2-piston, resin pads, Shimano RT54 180mm rotors

Brake Levers

Shimano MT4100

Drivetrain

Shifters

Shimano Deore, 12-speed

Front Derailleur

None

Rear Derailleur

Shimano Deore, 12-speed

ISCG Tabs

ISCG05, 2-bolt

Chainguide

Upper slider

Cranks

Shimano Deore, 24mm spindle, 170mm length

Chainrings

Shimano Deore, 34 tooth

Bottom Bracket

Shimano BBMT500, 92mm press-fit

Pedals

None

Chain

Shimano Deore M6100, 12-speed

Cassette

Shimano Deore, 12-speed, 10-51 tooth

Rims

WTB ST i30 TCS 2.0, tubeless ready (tape and valves included), 32 hole

Hubs

Shimano MT410, 110x15mm Boost front, 148x12mm Boost rear with MICRO SPLINE driver

Spokes

Stainless steel 2.0

Tires

Front: Maxxis Minion DHF, EXO, TR, 27.5" x 2.5" WT
Rear: Maxxis Minion DHR II, EXO, TR, 27.5" x 2.4" WT

Saddle

WTB Volt Race, chromoly rails, 142mm width

Seatpost

Rocky Mountain Toonie dropper
Drop: 125mm (XS/SM), 150mm (MD/LG), 170m (XL)

Seatpost Diameter

30.9mm

Seatpost Clamp

Standard single bolt

Rear Dropout / Hub Dimensions

148x12mm Boost

Max. Tire Size

Bottle Cage Mounts

One inside front triangle

Colors

Purple, Grey

Warranty

5 years frame; 1 year paint, decals, and frame hardware

Weight

33 lb 2.9 oz (15,050 g)

Miscellaneous

- Smoothlink suspension design
- Geometry adjustable via RIDE-9 flip chip at rear shock mount
- Internal cable routing
- Compatible with 26+ wheels

Price

$2,499.00

More Info

Rocky Mountain Website

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Where To Buy
	Free shipping on orders over $50 (continental U.S. only). International shipping available. Some exclusions apply.	Browse available Bikes
	Free shipping on orders over $50 (continental U.S. only). International shipping available. Some exclusions apply.	Browse available Bikes