2020 Bossi Bicycles Summit Frameset

Design
Drop Bar, Rigid, non-suspension corrected
Frame
Titanium
Fork
Carbon/Composite
Features
Disc brake
Average stack and reachvs category
Average stack and reachvs category
Average stack and reachvs category
Average stack and reachvs category
Average stack and reachvs category
Average stack and reachvs category

Geometry

50
52
54
56
58
60
Stack
536mm
551mm
568mm
589mm
608mm
625mm
Reach
364mm
370mm
376mm
381mm
388mm
397mm
Stack to Reach Ratio
1.47:1
1.49:1
1.51:1
1.55:1
1.57:1
1.57:1
Seat Tube Length, Unknown
500mm
520mm
540mm
560mm
580mm
600mm
Top Tube Length, Effective/Horizontal Unknown
515mm
530mm
545mm
560mm
580mm
595mm
Top Tube Slope
6.2deg
5.7deg
5.4deg
5.6deg
5.6deg
5.2deg
Head Tube Angle
71deg
71.3deg
72deg
72.5deg
72.5deg
72.5deg
Seat Tube Angle
74.5deg
74deg
73.5deg
73.2deg
72.5deg
72.5deg
Head Tube Length
130mm
145mm
160mm
180mm
200mm
220mm
Bottom Bracket Drop
72mm
72mm
72mm
72mm
72mm
72mm
Bottom Bracket Height
271mm
271mm
271mm
271mm
271mm
271mm
Chainstay Length
425mm
425mm
425mm
425mm
425mm
425mm
Chainstay Length Horizontal
418.9mm
418.9mm
418.9mm
418.9mm
418.9mm
418.9mm
Front-Center
576mm
584mm
588mm
596mm
608mm
628mm
Front-Center Horizontal
571.1mm
579.1mm
584.1mm
591.1mm
604.1mm
624.1mm
Wheelbase
990mm
998mm
1003mm
1010mm
1023mm
1043mm
Fork Offset/Rake
45mm
45mm
45mm
45mm
45mm
45mm
Trail
70.5mm
high
68.6mm
high
64.1mm
mid/​neutral
61mm
mid/​neutral
61mm
mid/​neutral
61mm
mid/​neutral
Mechanical Trail
66.7mm
65mm
61mm
58.1mm
58.1mm
58.1mm
Wheel Flop
21.7mm
20.8mm
18.9mm
17.5mm
17.5mm
17.5mm
Tire to Pedal Spindle
63mm
170 mm cranks
71mm
170 mm cranks
75mm
170 mm cranks
83mm
170 mm cranks
95mm
170 mm cranks
115mm
170 mm cranks
Pedal Spindle to Ground Clearance
101mm
170 mm cranks
101mm
170 mm cranks
101mm
170 mm cranks
101mm
170 mm cranks
101mm
170 mm cranks
101mm
170 mm cranks

Frameset Build

50
52
54
56
58
60
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
32mm
32mm
32mm
32mm
32mm
32mm
Tire Width Max
32mm
32mm
32mm
32mm
32mm
32mm
Tire Outer Diameter
686mm
686mm
686mm
686mm
686mm
686mm
Bike Length with Tires
1676mm
1684mm
1689mm
1696mm
1709mm
1729mm

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
Source:https://bossibicycles.com/collections/titanium-bikes/products/summit-titanium-endurance-frameset?variant=31793012834398