2012 Rocky Mountain Trailhead Base

Design
Flat Bar, Hardtail (Front suspension)
Frame
Aluminum
Fork
Aluminum
Suspension
100mm fork travel, 20% sag
Features
Disc brake

Geometry

15.5
17
18.5
20
Seat Tube Length, Unknown
394mm
432mm
470mm
508mm
Top Tube Length, Effective/Horizontal Unknown
570mm
592mm
615mm
638mm
Head Tube Angle
70deg
70deg
70deg
70deg
Seat Tube Angle
73deg
73deg
73deg
73deg
Head Tube Length
100mm
100mm
115mm
130mm
Bottom Bracket Drop
56mm
56mm
56mm
56mm
Bottom Bracket Height
308.3mm
308.3mm
308.3mm
308.3mm
Chainstay Length
450mm
450mm
450mm
450mm
Chainstay Length Horizontal
446.5mm
446.5mm
446.5mm
446.5mm
Front-Center
637mm
657.9mm
682.8mm
705.7mm
Front-Center Horizontal
634.5mm
655.5mm
680.5mm
703.5mm
Wheelbase
1081mm
1102mm
1127mm
1150mm
Trail
Mechanical Trail
Wheel Flop
Tire to Pedal Spindle
102.6mm
170 mm cranks
123.6mm
170 mm cranks
148.5mm
170 mm cranks
171.4mm
170 mm cranks
Pedal Spindle to Ground Clearance
138.3mm
170 mm cranks
138.3mm
170 mm cranks
138.3mm
170 mm cranks
138.3mm
170 mm cranks

Base Build

15.5
17
18.5
20
Wheel Size
700C/29 in
622 mm BSD
700C/29 in
622 mm BSD
700C/29 in
622 mm BSD
700C/29 in
622 mm BSD
Tire Width
2.1in
2.1in
2.1in
2.1in
Tire Outer Diameter
728.7mm
728.7mm
728.7mm
728.7mm
Bike Length with Tires
1809.7mm
1830.7mm
1855.7mm
1878.7mm
Handlebar Width
685mm
685mm
685mm
685mm
Source:https://resources.bikes.com/en/bike-archive