2012 Gravity Zilla Base

Design
Drop Bar, Rigid, suspension corrected
Frame
Aluminum
Fork
Steel
Features
Disc brake
Very aggressive stack and reachvs category
Very aggressive stack and reachvs category
Very aggressive stack and reachvs category
Very aggressive stack and reachvs category
Very aggressive stack and reachvs category

Geometry

43
46.5
50
53.5
55.5
58.5
Stack
396mm
450.6mm
484.1mm
492.4mm
555.9mm
Reach
425mm
414.4mm
415.1mm
423.4mm
409.5mm
Stack to Reach Ratio
0.93:1
1.09:1
1.17:1
1.16:1
1.36:1
Seat Tube Length, C-T
430mm
465mm
500mm
535mm
555mm
585mm
Top Tube Length, Effective/Horizontal Center
540.4mm
545.5mm
555.2mm
565.9mm
570.2mm
575.6mm
Top Tube Length, Actual C-C
545.7mm
544.5mm
554.3mm
572.7mm
564.3mm
Top Tube Slope
-1.8deg
0.4deg
0.3deg
-2.2deg
2.2deg
Head Tube Angle
71deg
71deg
72deg
72deg
72deg
72deg
Seat Tube Angle
74deg
74deg
74deg
74deg
74deg
74deg
Head Tube Length
125mm
140mm
150mm
165mm
185mm
205mm
Bottom Bracket Drop
75mm
75mm
75mm
75mm
75mm
75mm
Bottom Bracket Height
280.5mm
280.5mm
280.5mm
280.5mm
280.5mm
280.5mm
Chainstay Length
445mm
445mm
445mm
445mm
445mm
445mm
Chainstay Length Horizontal
438.6mm
438.6mm
438.6mm
438.6mm
438.6mm
438.6mm
Front-Center
610.2mm
610.2mm
620.1mm
620.1mm
620.1mm
625.1mm
Front-Center Horizontal
605.6mm
605.6mm
615.6mm
615.6mm
615.6mm
620.6mm
Wheelbase
1044.2mm
1044.2mm
1054.2mm
1054.2mm
1054.2mm
1059.2mm
Fork Length (Axle-To-Crown)
430mm
430mm
430mm
430mm
430mm
430mm
Trail
Mechanical Trail
Wheel Flop
Tire to Pedal Spindle
84.7mm
170 mm cranks
84.7mm
170 mm cranks
94.7mm
170 mm cranks
94.7mm
170 mm cranks
94.7mm
170 mm cranks
99.6mm
170 mm cranks
Pedal Spindle to Ground Clearance
110.5mm
170 mm cranks
110.5mm
170 mm cranks
110.5mm
170 mm cranks
110.5mm
170 mm cranks
110.5mm
170 mm cranks
110.5mm
170 mm cranks

Base Build

43
46.5
50
53.5
55.5
58.5
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
700C/29 in
622 mm BSD
700C/29 in
622 mm BSD
Tire Width
1.75in
1.75in
1.75in
1.75in
1.75in
1.75in
Tire Width Max
1.75in
1.75in
1.75in
1.75in
1.75in
1.75in
Tire Outer Diameter
710.9mm
710.9mm
710.9mm
710.9mm
710.9mm
710.9mm
Bike Length with Tires
1755.1mm
1755.1mm
1765.1mm
1765.1mm
1765.1mm
1770.1mm

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
Category Trend
All-road/Gravel
Source:https://www.bikesdirect.com/products/gravity/zilla_geometry.html