2023 Kinesis Bikes Aithein Base

Design
Drop Bar, Rigid, non-suspension corrected
Frame
Aluminum
Fork
Carbon/Composite
Features
Disc brake

Geometry

XS (47*)
S (50*)
M (53)
L (56)
XL (59)
Stack
525mm
540mm
550mm
575mm
605mm
Reach
370mm
380mm
390mm
399mm
408mm
Stack to Reach Ratio
1.42:1
1.42:1
1.41:1
1.44:1
1.48:1
Seat Tube Length, C-T
440mm
470mm
530mm
560mm
590mm
Top Tube Length, Actual C-C
511mm
535mm
550mm
569mm
588mm
Top Tube Slope
11.7deg
9.8deg
4.4deg
3.9deg
3.9deg
Head Tube Angle
71.75deg
72.5deg
73deg
73.5deg
73.5deg
Seat Tube Angle
75deg
74deg
73.75deg
73.5deg
73.5deg
Head Tube Length
128mm
143mm
150mm
175mm
208mm
Bottom Bracket Drop
72mm
72mm
70mm
70mm
69mm
Bottom Bracket Height
267mm
267mm
269mm
269mm
270mm
Chainstay Length
410mm
410mm
410mm
410mm
410mm
Chainstay Length Horizontal
403.6mm
403.6mm
404mm
404mm
404.2mm
Front-Center
573.7mm
579.3mm
587.8mm
599.7mm
617.8mm
Front-Center Horizontal
569.2mm
574.9mm
583.6mm
595.6mm
614mm
Wheelbase
972.8mm
978.5mm
987.6mm
999.6mm
1018.1mm
Fork Offset/Rake
45mm
45mm
45mm
45mm
45mm
Fork Length (On-Axis)
368mm
368mm
368mm
368mm
368mm
Trail
64.4mm
mid/​neutral
59.7mm
mid/​neutral
56.6mm
mid/​neutral
53.5mm
mid/​neutral
53.5mm
mid/​neutral
Mechanical Trail
61.2mm
56.9mm
54.1mm
51.3mm
51.3mm
Wheel Flop
19.2mm
17.1mm
15.8mm
14.6mm
14.6mm
Tire to Pedal Spindle
64.7mm
170 mm cranks
70.3mm
170 mm cranks
78.8mm
170 mm cranks
90.7mm
170 mm cranks
108.8mm
170 mm cranks
Pedal Spindle to Ground Clearance
97mm
170 mm cranks
97mm
170 mm cranks
99mm
170 mm cranks
99mm
170 mm cranks
100mm
170 mm cranks

Base Build

XS (47*)
S (50*)
M (53)
L (56)
XL (59)
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
28mm
28mm
28mm
28mm
28mm
Tire Outer Diameter
678mm
678mm
678mm
678mm
678mm
Bike Length with Tires
1650.8mm
1656.5mm
1665.6mm
1677.6mm
1696.1mm

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://www.kinesisbikes.co.uk/Catalogue/Models/Racelight/Aithein-Disc-FRAMESET