2015 Rocky Mountain Thunderbolt 750 XS

Build

650B/27.5 in × 2.3 in

Insights

Somewhat aggressive stack and reach vs trend of full-suspension cross-country mtb bikes
Suspension sag unknown
Geometry may mis-represent actual riding geometry

Stack and Reach vs. Category Trend
View all sizes

Geometry

Stack
544mm
Reach
376mm
Stack to Reach Ratio
1.45:1
Seat Tube Length, C-T
381mm
Top Tube Length, Effective/Horizontal HT Top
540mm
Top Tube Slope
20.3deg
Head Tube Angle
67.2deg
Seat Tube Angle
73.7deg
Head Tube Length
100mm
Bottom Bracket Drop
25.2mm
Bottom Bracket Height
325.2mm
Chainstay Length
422mm
Chainstay Length Horizontal
421.3mm
Front-Center
652.2mm
Front-Center Horizontal
651.8mm
Wheelbase
1073mm
Fork Offset/Rake
53.2mm
Trail
89.6mm
very high
Mechanical Trail
82.6mm
Wheel Flop
32mm
Standover Height
696mm
Tire to Pedal Spindle Distance
With 170 mm cranks
131.8mm
Pedal Spindle to Ground Clearance
With 170 mm cranks
155.2mm

750 Build

Wheel Size
650B, 27.5 inch (584mm BSD)
Tire Width
2.3in
Tire Outer Diameter
700.8mm
Bike Length with Tires
1773.8mm
Suspension Type
Full suspension
Bar Type
Flat Bar
Fork Travel
120mm
Rear Travel
120mm
Suspension Sag
Unknown
Frame Material
Aluminum
Fork Material
Unknown
Brake Type
Disc
Source:https://www.bikes.com/en/bikes/thunderbolt/2015