2023 TanTan Cycling (Seraph) FM659 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
Somewhat aggressive stack and reachvs category
Somewhat aggressive stack and reachvs category
Somewhat aggressive stack and reachvs category

Geometry

XS
S
M
M
L
Stack
505mm
519mm
533mm
533mm
552mm
Reach
363mm
373mm
388mm
388mm
394mm
Stack to Reach Ratio
1.39:1
1.39:1
1.37:1
1.37:1
1.4:1
Seat Tube Length, Unknown
450mm
480mm
510mm
510mm
540mm
Top Tube Length, Effective/Horizontal Unknown
505mm
520mm
538mm
538mm
550mm
Top Tube Slope
8.4deg
6.5deg
4.6deg
4.6deg
3.4deg
Head Tube Angle
71.2deg
71.2deg
71.2deg
71.2deg
71.2deg
Seat Tube Angle
74.3deg
74.3deg
74.3deg
74.3deg
74.3deg
Head Tube Length
100mm
110mm
130mm
130mm
150mm
Bottom Bracket Drop
74mm
74mm
74mm
74mm
74mm
Bottom Bracket Height
262mm
262mm
262mm
262mm
262mm
Chainstay Length
408mm
408mm
408mm
408mm
408mm
Chainstay Length Horizontal
401.2mm
401.2mm
401.2mm
401.2mm
401.2mm
Front-Center
572mm
588mm
607mm
607mm
620mm
Front-Center Horizontal
567.8mm
583.8mm
602.8mm
602.8mm
615.8mm
Wheelbase
969mm
985mm
1004mm
1004mm
1017mm
Fork Offset/Rake
55mm
55mm
55mm
55mm
55mm
Fork Length (Axle-To-Crown)
380mm
380mm
380mm
380mm
380mm
Trail
56.3mm
mid/​neutral
56.3mm
mid/​neutral
56.3mm
mid/​neutral
56.3mm
mid/​neutral
56.3mm
mid/​neutral
Mechanical Trail
53.3mm
53.3mm
53.3mm
53.3mm
53.3mm
Wheel Flop
17.2mm
17.2mm
17.2mm
17.2mm
17.2mm
Tire to Pedal Spindle
66mm
170 mm cranks
82mm
170 mm cranks
101mm
170 mm cranks
101mm
170 mm cranks
114mm
170 mm cranks
Pedal Spindle to Ground Clearance
92mm
170 mm cranks
92mm
170 mm cranks
92mm
170 mm cranks
92mm
170 mm cranks
92mm
170 mm cranks

Base Build

XS
S
M
M
L
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
25mm
25mm
25mm
25mm
25mm
Tire Width Max
28mm
28mm
28mm
28mm
28mm
Tire Outer Diameter
672mm
672mm
672mm
672mm
672mm
Bike Length with Tires
1641mm
1657mm
1676mm
1676mm
1689mm
Crank Length
170mm
170mm
Handlebar Width
420mm
420mm
Stem Length
90mm
90mm

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
Performance Road
Source:https://aliexpress.ru/item/4000844824694.html, https://aliexpress.ru/item/1005005580960553.html