2014 Chromag Bikes Aperture Base

Design
Flat Bar, Hardtail (Front suspension)
Frame
Steel
Suspension
140mm fork travel, 20% sag
Average stack and reachvs category
Average stack and reachvs category
Average stack and reachvs category
Somewhat aggressive stack and reachvs category

Geometry

Small
Medium
M/L
Large
Stack
602mm
602mm
602mm
602mm
Reach
381mm
400mm
420mm
436mm
Stack to Reach Ratio
1.58:1
1.51:1
1.43:1
1.38:1
Seat Tube Length, C-T
394mm
432mm
470mm
495mm
Top Tube Length, Effective/Horizontal Unknown
559mm
584mm
603mm
618mm
Top Tube Slope
24.4deg
19.7deg
15.3deg
12.5deg
Head Tube Angle
68deg
68deg
68deg
68deg
Seat Tube Angle
73deg
73deg
73deg
73deg
Head Tube Length
114mm
114mm
114mm
114mm
Bottom Bracket Drop
19.9mm
19.9mm
19.9mm
19.9mm
Bottom Bracket Height
318mm
318mm
318mm
318mm
Chainstay Length
419mm
419mm
419mm
419mm
Chainstay Length Horizontal
418.5mm
418.5mm
418.5mm
418.5mm
Front-Center
663.9mm
682.9mm
702.9mm
718.9mm
Front-Center Horizontal
663.6mm
682.6mm
702.6mm
718.6mm
Wheelbase
1082.2mm
1101.2mm
1121.2mm
1137.2mm
Fork Offset/Rake
44mm
44mm
44mm
44mm
Fork Length (Axle-To-Crown)
532mm
532mm
532mm
532mm
Trail
89.1mm
very high
89.1mm
very high
89.1mm
very high
89.1mm
very high
Mechanical Trail
82.6mm
82.6mm
82.6mm
82.6mm
Wheel Flop
30.9mm
30.9mm
30.9mm
30.9mm
Tire to Pedal Spindle
156mm
170 mm cranks
175mm
170 mm cranks
195mm
170 mm cranks
211mm
170 mm cranks
Pedal Spindle to Ground Clearance
148mm
170 mm cranks
148mm
170 mm cranks
148mm
170 mm cranks
148mm
170 mm cranks

Base Build

Small
Medium
M/L
Large
Wheel Size
26 in
559 mm BSD
26 in
559 mm BSD
26 in
559 mm BSD
26 in
559 mm BSD
Tire Width
2.3in
2.3in
2.3in
2.3in
Tire Width Max
2.5mm
2.5mm
2.5mm
2.5mm
Tire Outer Diameter
675.8mm
675.8mm
675.8mm
675.8mm
Bike Length with Tires
1758mm
1777mm
1797mm
1813mm

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
Hardtail Trail MTB
Source:https://chromagbikes.com/pages/2014-aperture