2021 Brother Cycles Kepler Disc Base

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

Geometry

52cm
54cm
56cm
58cm
60cm
Stack
533mm
543mm
562mm
580mm
598mm
Reach
382mm
384mm
388mm
392mm
396mm
Stack to Reach Ratio
1.4:1
1.41:1
1.45:1
1.48:1
1.51:1
Seat Tube Length, C-C
505mm
525mm
545mm
565mm
585mm
Top Tube Length, Effective/Horizontal Unknown
535mm
545mm
560mm
575mm
590mm
Head Tube Angle
71.5deg
71.5deg
72deg
72deg
72deg
Seat Tube Angle
74deg
73.5deg
73deg
72.5deg
72deg
Head Tube Length
95mm
105mm
124mm
142mm
160mm
Bottom Bracket Drop
70mm
70mm
70mm
70mm
70mm
Bottom Bracket Height
278mm
278mm
278mm
278mm
278mm
Chainstay Length
430mm
430mm
435mm
435mm
435mm
Chainstay Length Horizontal
424.3mm
424.3mm
429.3mm
429.3mm
429.3mm
Front-Center
588.9mm
593.9mm
599.8mm
609.7mm
618.6mm
Front-Center Horizontal
584.7mm
589.7mm
595.7mm
605.7mm
614.7mm
Wheelbase
1009mm
1014mm
1025mm
1035mm
1044mm
Fork Offset/Rake
45mm
45mm
45mm
45mm
45mm
Fork Length (Axle-To-Crown)
400mm
400mm
400mm
400mm
400mm
Trail
69mm
high
69mm
high
65.8mm
high
65.8mm
high
65.8mm
high
Mechanical Trail
65.4mm
65.4mm
62.5mm
62.5mm
62.5mm
Wheel Flop
20.8mm
20.8mm
19.3mm
19.3mm
19.3mm
Tire to Pedal Spindle
70.9mm
170 mm cranks
75.9mm
170 mm cranks
81.8mm
170 mm cranks
91.7mm
170 mm cranks
100.6mm
170 mm cranks
Pedal Spindle to Ground Clearance
108mm
170 mm cranks
108mm
170 mm cranks
108mm
170 mm cranks
108mm
170 mm cranks
108mm
170 mm cranks

Base Build

52cm
54cm
56cm
58cm
60cm
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
Tire Width
37mm
37mm
37mm
37mm
37mm
Tire Width Max
45mm
45mm
45mm
45mm
45mm
Tire Outer Diameter
696mm
696mm
696mm
696mm
696mm
Bike Length with Tires
1705mm
1710mm
1721mm
1731mm
1740mm

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.brothercycles.com/shop/bikes/kepler-disc-complete/