2013 Btwin Triban 3a

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

Geometry

43
45
48
51
54
57
60
Stack
463mm
469mm
486mm
515mm
545mm
573mm
597mm
Reach
336mm
372mm
379mm
384mm
389mm
395mm
402mm
Stack to Reach Ratio
1.38:1
1.26:1
1.28:1
1.34:1
1.4:1
1.45:1
1.49:1
Seat Tube Length, C-C
325mm
380mm
395mm
425mm
445mm
565mm
584mm
Top Tube Length, Effective/Horizontal HT Top
460mm
507mm
519mm
532mm
546mm
565mm
580mm
Head Tube Angle
71deg
71.5deg
72.5deg
72.5deg
73deg
73deg
73deg
Seat Tube Angle
75deg
74deg
74deg
74deg
74deg
73.5deg
73.5deg
Head Tube Length
100mm
105mm
120mm
150mm
135mm
165mm
190mm
Bottom Bracket Drop
40mm
37mm
37mm
37mm
62mm
62mm
62mm
Bottom Bracket Height
266.5mm
269.5mm
269.5mm
269.5mm
270mm
270mm
270mm
Chainstay Length
385mm
385mm
385mm
385mm
410mm
410mm
410mm
Chainstay Length Horizontal
382.9mm
383.2mm
383.2mm
383.2mm
405.3mm
405.3mm
405.3mm
Front-Center
525mm
560mm
565mm
579mm
588mm
602mm
617mm
Front-Center Horizontal
539.1mm
558.8mm
563.8mm
577.8mm
584.7mm
598.7mm
613.7mm
Wheelbase
922mm
942mm
947mm
961mm
990mm
1004mm
1019mm
Fork Offset/Rake
41mm
41mm
41mm
41mm
45mm
45mm
45mm
Trail
62.2mm
mid/​neutral
59.3mm
mid/​neutral
53.7mm
mid/​neutral
53.7mm
mid/​neutral
54.5mm
mid/​neutral
54.5mm
mid/​neutral
54.5mm
mid/​neutral
Mechanical Trail
58.8mm
56.3mm
51.2mm
51.2mm
52.1mm
52.1mm
52.1mm
Wheel Flop
19.1mm
17.9mm
15.4mm
15.4mm
15.2mm
15.2mm
15.2mm
Tire to Pedal Spindle
48.5mm
170 mm cranks
83.5mm
170 mm cranks
88.5mm
170 mm cranks
102.5mm
170 mm cranks
86mm
170 mm cranks
100mm
170 mm cranks
115mm
170 mm cranks
Pedal Spindle to Ground Clearance
96.5mm
170 mm cranks
99.5mm
170 mm cranks
99.5mm
170 mm cranks
99.5mm
170 mm cranks
100mm
170 mm cranks
100mm
170 mm cranks
100mm
170 mm cranks

3a Build

43
45
48
51
54
57
60
Wheel Size
650C
571 mm BSD
650C
571 mm BSD
650C
571 mm BSD
650C
571 mm BSD
700C/29 in
622 mm BSD
700C/29 in
622 mm BSD
700C/29 in
622 mm BSD
Tire Width
21mm
21mm
21mm
21mm
21mm
21mm
21mm
Tire Outer Diameter
613mm
613mm
613mm
613mm
664mm
664mm
664mm
Bike Length with Tires
1535mm
1555mm
1560mm
1574mm
1654mm
1668mm
1683mm

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://triban3owners.freeforums.net/thread/5105/triban-geometry