2017 Gunnar Cycles USA Rock Tour 29er Base

Design
Flat Bar, Hardtail (Front suspension)
Frame
Steel
Features
Disc brake
Somewhat upright stack and reachvs category
Suspension sag unknown
Geometry may mis-represent actual riding geometry
Somewhat upright stack and reachvs category
Suspension sag unknown
Geometry may mis-represent actual riding geometry
Somewhat upright stack and reachvs category
Suspension sag unknown
Geometry may mis-represent actual riding geometry
Very upright stack and reachvs category
Suspension sag unknown
Geometry may mis-represent actual riding geometry

Geometry

19"
20.5"
22"
23.5"
Stack
612mm
614mm
636mm
665mm
Reach
398mm
405mm
414mm
420mm
Stack to Reach Ratio
1.54:1
1.52:1
1.54:1
1.58:1
Seat Tube Length, C-T
483mm
522mm
559mm
597mm
Top Tube Length, Effective/Horizontal HT Top
580mm
595mm
610mm
625mm
Top Tube Slope
15.5deg
11.6deg
10deg
9deg
Head Tube Angle
71deg
71.5deg
71.5deg
71.5deg
Seat Tube Angle
74deg
73deg
73deg
73deg
Head Tube Length
107mm
107mm
130mm
160mm
Bottom Bracket Drop
70mm
70mm
70mm
70mm
Bottom Bracket Height
299.4mm
299.4mm
299.4mm
299.4mm
Chainstay Length
450mm
450mm
450mm
450mm
Chainstay Length Max
450mm
450mm
450mm
450mm
Chainstay Length Horizontal
444.5mm
444.5mm
444.5mm
444.5mm
Chainstay Length Horizontal Max
444.5mm
444.5mm
444.5mm
444.5mm
Front-Center
629.4mm
631.4mm
647.3mm
663.2mm
Front-Center Horizontal
625.5mm
627.5mm
643.5mm
659.5mm
Wheelbase
1070mm
1072mm
1088mm
1104mm
Wheelbase Max
1070mm
1072mm
1088mm
1104mm
Fork Offset/Rake
39mm
39mm
39mm
39mm
Fork Length (Axle-To-Crown)
466mm
466mm
466mm
466mm
Trail
86mm
very high
82.5mm
very high
82.5mm
very high
82.5mm
very high
Mechanical Trail
81.3mm
78.2mm
78.2mm
78.2mm
Wheel Flop
26.5mm
24.8mm
24.8mm
24.8mm
Standover Height
822mm
840mm
864mm
896mm
Tire to Pedal Spindle
90mm
170 mm cranks
92mm
170 mm cranks
107.9mm
170 mm cranks
123.8mm
170 mm cranks
Pedal Spindle to Ground Clearance
129.4mm
170 mm cranks
129.4mm
170 mm cranks
129.4mm
170 mm cranks
129.4mm
170 mm cranks

Base Build

19"
20.5"
22"
23.5"
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
2.3in
2.3in
2.3in
2.3in
Tire Width Max
2.3in
2.3in
2.3in
2.3in
Tire Outer Diameter
738.8mm
738.8mm
738.8mm
738.8mm
Bike Length with Tires
1808.8mm
1810.8mm
1826.8mm
1842.8mm

Stack and Reach vs. Category Trend

Very Upright
Somewhat Upright
Average
Somewhat Aggressive
Very Aggressive

The Bike Insights Upright/Aggressive scale is based on analysis of a bike’s proportions relative to similar sized bikes in the same category.

Learn more about the Upright/Aggressive Scale
Source:Bike Counterculture Geometry Database