2020 Rocky Mountain Thunderbolt Alloy 50 Neutral M

Build

650B/27.5 in × 2.4 in

Insights

Average stack and reach vs trend of full-suspension trail mtb bikes

Stack and Reach vs. Category Trend
View all sizes

Geometry

Stack
598mm
Reach
436mm
Stack to Reach Ratio
1.37:1
Seat Tube Length, C-T
432mm
Top Tube Length, Effective/Horizontal Unknown
601mm
Head Tube Angle
66.6deg
Effective Seat Tube Angle, Unknown
74.6deg
Head Tube Length
120mm
Bottom Bracket Drop
17mm
Bottom Bracket Height
336mm
Chainstay Length Horizontal
425mm
Front-Center
736.2mm
Front-Center Horizontal
736mm
Wheelbase
1161mm
Fork Offset/Rake
37mm
Trail
112.4mm
very high
Mechanical Trail
103.2mm
Wheel Flop
41mm
Standover Height
802mm
Tire to Pedal Spindle Distance
With 170 mm cranks
213.2mm
Pedal Spindle to Ground Clearance
With 170 mm cranks
166mm

Alloy 50 Neutral Build

Wheel Size
650B, 27.5 inch (584mm BSD)
Tire Width
2.4in
Tire Outer Diameter
705.9mm
Bike Length with Tires
1866.9mm
Suspension Type
Full suspension
Bar Type
Flat Bar
Fork Travel
140mm
Rear Travel
Unknown
Suspension Sag
25%
Frame Material
Aluminum
Fork Material
N/A
Brake Type
Disc
Source:https://www.bikes.com/en/bikes/thunderbolt/2020