2026 Concord Alaris Base

Design
Drop Bar, Rigid, non-suspension corrected
Frame
Steel
Fork
Steel
Features
Rim brake
Somewhat aggressive stack and reachvs category
Somewhat aggressive stack and reachvs category

Geometry

Small
Medium
Stack
520mm
570mm
Reach
380mm
390mm
Stack to Reach Ratio
1.37:1
1.46:1
Seat Tube Length, Unknown
440mm
500mm
Top Tube Length, Effective/Horizontal Center
525mm
559mm
Top Tube Slope
10.9deg
9.7deg
Head Tube Angle
70deg
72.2deg
Seat Tube Angle
74.5deg
73.5deg
Head Tube Length
110mm
155mm
Bottom Bracket Drop
70mm
70mm
Bottom Bracket Height
269mm
269mm
Chainstay Length
425mm
425mm
Chainstay Length Horizontal
419.2mm
419.2mm
Front-Center
591mm
596mm
Front-Center Horizontal
585.8mm
591.8mm
Wheelbase
1005mm
1011mm
Fork Offset/Rake
39.5mm
39.3mm
Fork Length, Unknown
385mm
385mm
Trail
81.4mm
very high
67.6mm
high
Mechanical Trail
76.5mm
64.3mm
Wheel Flop
26.2mm
19.7mm
Standover Height
684mm
737mm
Tire to Pedal Spindle
87mm
165 mm cranks
87mm
170 mm cranks
Pedal Spindle to Ground Clearance
104mm
165 mm cranks
99mm
170 mm cranks

Base Build

Small
Medium
Wheel Size
700C/29 in
622 mm BSD
700C/29 in
622 mm BSD
Tire Width
28mm
28mm
Tire Outer Diameter
678mm
678mm
Bike Length with Tires
1683mm
1689mm
Crank Length
165mm
170mm
Handlebar Width
380mm
420mm

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
Endurance Road