Bike-on-Bike

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

Insights

Average 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
560.6mm
548mm
-12.6mm
Reach
372.6mm
364mm
-8.6mm
Stack to Reach Ratio
1.5:1
1.51:1
Seat Tube Length, C-T
465mm
485mm
+20mm
Top Tube Length, Effective/Horizontal HT Top
523mm
Top Tube Length, Actual C-C
540mm
Top Tube Slope
12.8deg
9.3deg
-3.5deg
Head Tube Angle
71deg
70deg
-1deg
Seat Tube Angle
73.7deg
74deg
+0.3deg
Head Tube Length
137mm
110mm
-27mm
Bottom Bracket Drop
72mm
75mm
+3mm
Bottom Bracket Height
279mm
264mm
-15mm
Chainstay Length
425mm
430mm
+5mm
Chainstay Length Horizontal
418.9mm
423.4mm
+4.5mm
Front-Center
598.1mm
589mm
-9.1mm
Front-Center Horizontal
593.7mm
584.6mm
-9.1mm
Wheelbase
1012.6mm
1008mm
-4.6mm
Fork Offset/Rake
50mm
45mm
-5mm
Fork Length (On-Axis)
390mm
Trail
68mm
high
75.5mm
+7.5mm
high
Mechanical Trail
64.3mm
70.9mm
+6.6mm
Wheel Flop
20.9mm
24.3mm
+3.4mm
Tire to Pedal Spindle
77.1mm
170 mm cranks
80mm
+2.9mm
170 mm cranks
Pedal Spindle to Ground Clearance
109mm
170 mm cranks
94mm
-15mm
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 Width Max
55mm
Tire Outer Diameter
702mm
678mm
-24mm
Bike Length with Tires
1714.6mm
1686mm
-28.6mm
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

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