Bike-on-Bike

Generated by Bike Insights
700C/29 in × 40 mm
650B/27.5 in × 47 mm

Insights

Somewhat upright stack and reach vs trend of all-road/gravel bikes
Somewhat upright stack and reach vs trend of all-road/gravel bikes
Design deviates from other sizes of Serk Titanium A21

Geometry

Stack
521.7mm
548mm
+26.3mm
Reach
351mm
364mm
+13mm
Stack to Reach Ratio
1.49:1
1.51:1
Seat Tube Length, C-T
485mm
Seat Tube Length, C-TTT
431mm
Top Tube Length, Effective/Horizontal HT Top
500mm
523mm
+23mm
Top Tube Slope
10.5deg
9.3deg
-1.2deg
Head Tube Angle
70deg
70deg
+0deg
Seat Tube Angle
74deg
74deg
+0deg
Head Tube Length
105mm
110mm
+5mm
Bottom Bracket Drop
69mm
75mm
+6mm
Bottom Bracket Height
282mm
264mm
-18mm
Chainstay Length
427mm
430mm
+3mm
Chainstay Length Horizontal
421.4mm
423.4mm
+2mm
Front-Center
573.3mm
589mm
+15.7mm
Front-Center Horizontal
569.1mm
584.6mm
+15.5mm
Wheelbase
990.5mm
1008mm
+17.5mm
Fork Offset/Rake
50mm
45mm
-5mm
Fork Length, Unknown
395mm
Trail
74.5mm
high
75.5mm
+1mm
high
Mechanical Trail
70.1mm
70.9mm
+0.8mm
Wheel Flop
24mm
24.3mm
+0.3mm
Tire to Pedal Spindle
52.3mm
170 mm cranks
80mm
+27.7mm
170 mm cranks
Pedal Spindle to Ground Clearance
112mm
170 mm cranks
94mm
-18mm
170 mm cranks

Build

Wheel Size
700C/29 in
622 mm BSD
650B/27.5 in
584 mm BSD
Tire Width
40mm
47mm
+7mm
Tire Outer Diameter
702mm
678mm
-24mm
Bike Length with Tires
1692.5mm
1686mm
-6.5mm
Suspension Type
Rigid, non-suspension corrected
Rigid, non-suspension corrected
Bar Type
Drop Bar
Drop Bar
Frame Material
Carbon/Composite
Titanium
Fork Material
Carbon/Composite
Carbon/Composite
Brake Type
Disc
Disc

Meta

Actions
Source
https://pl.aliexpress.com/item/1005003540978175.html?spm=a2g0o.productlist.0.0.5f9b26714F0QzZ&algo_pvid=1ee16a61-6c1d-44c0-bcab-d39c0e28f4a6&algo_exp_id=1ee16a61-6c1d-44c0-bcab-d39c0e28f4a6-4&pdp_ext_f=%7B%22sku_id%22%3A%2212000026224445234%22%7D
https://www.serk.cc/a21/
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