2021 TanTan Cycling (Seraph) GR042 Base

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

Geometry

450
480
510
540
Stack
547.6mm
568.5mm
589.5mm
610.5mm
Reach
377.7mm
381.9mm
388.4mm
407.3mm
Stack to Reach Ratio
1.45:1
1.49:1
1.52:1
1.5:1
Seat Tube Length, C-T
450mm
480mm
510mm
540mm
Top Tube Length, Effective/Horizontal HT Top
539.9mm
550.3mm
568.6mm
593.9mm
Top Tube Slope
12.9deg
11.8deg
10.7deg
9.5deg
Head Tube Angle
72deg
72.5deg
73deg
73.5deg
Seat Tube Angle
73.5deg
73.5deg
73deg
73deg
Head Tube Length
130mm
150mm
170mm
190mm
Bottom Bracket Drop
70mm
70mm
70mm
70mm
Bottom Bracket Height
264mm
264mm
264mm
264mm
Chainstay Length
420mm
420mm
420mm
420mm
Chainstay Length Horizontal
414.1mm
414.1mm
414.1mm
414.1mm
Front-Center
594.9mm
600.8mm
608.8mm
628.7mm
Front-Center Horizontal
590.9mm
596.9mm
604.9mm
624.9mm
Wheelbase
1005mm
1011mm
1019mm
1039mm
Fork Offset/Rake
55.2mm
55.1mm
55.1mm
55.1mm
Fork Length (On-Axis)
390mm
390mm
390mm
390mm
Trail
50.5mm
mid/​neutral
47.5mm
mid/​neutral
44.5mm
low
41.5mm
low
Mechanical Trail
48.1mm
45.3mm
42.5mm
39.8mm
Wheel Flop
14.9mm
13.6mm
12.4mm
11.3mm
Tire to Pedal Spindle
90.9mm
170 mm cranks
96.8mm
170 mm cranks
104.8mm
170 mm cranks
124.7mm
170 mm cranks
Pedal Spindle to Ground Clearance
94mm
170 mm cranks
94mm
170 mm cranks
94mm
170 mm cranks
94mm
170 mm cranks

Base Build

450
480
510
540
Wheel Size
650B/27.5 in
584 mm BSD
650B/27.5 in
584 mm BSD
650B/27.5 in
584 mm BSD
650B/27.5 in
584 mm BSD
Tire Width
42mm
42mm
42mm
42mm
Tire Width Max
45mm
45mm
45mm
45mm
Tire Outer Diameter
668mm
668mm
668mm
668mm
Bike Length with Tires
1673mm
1679mm
1687mm
1707mm
Crank Length
170mm
170mm
170mm
170mm
Handlebar Width
420mm
420mm
420mm
420mm
Stem Length
100mm
100mm
100mm
100mm
Stem Angle
0deg
0deg
0deg
0deg

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:http://tantancycling.com/index.php?_m=mod_product&_a=view&p_id=933