2024 CHIRU Fukai Base

Design
Drop Bar, Rigid, suspension corrected
Frame
Titanium
Fork
Titanium
Features
Disc brake
Very aggressive stack and reachvs category
Very aggressive stack and reachvs category
Very aggressive stack and reachvs category

Geometry

S
M
L
Stack
582mm
612mm
631mm
Reach
429mm
446mm
465mm
Stack to Reach Ratio
1.36:1
1.37:1
1.36:1
Seat Tube Length, Unknown
485mm
550mm
575mm
Top Tube Length, Effective/Horizontal Unknown
580mm
605mm
630mm
Top Tube Slope
11.6deg
7.9deg
7.1deg
Head Tube Angle
68.6deg
69deg
69deg
Seat Tube Angle
74.5deg
74.5deg
74.5deg
Head Tube Length
145mm
170mm
190mm
Bottom Bracket Drop
73mm
78mm
78mm
Bottom Bracket Height
304mm
299mm
299mm
Chainstay Length
435mm
435mm
440mm
Chainstay Length Horizontal
428.8mm
428mm
433mm
Front-Center
686.1mm
708.4mm
735.1mm
Front-Center Horizontal
682.2mm
704.1mm
731mm
Wheelbase
1111mm
1132mm
1164mm
Fork Offset/Rake
50mm
50mm
50mm
Fork Length, Unknown
430mm
430mm
430mm
Trail
94.1mm
very high
91.2mm
very high
91.2mm
very high
Mechanical Trail
87.6mm
85.1mm
85.1mm
Wheel Flop
32mm
30.5mm
30.5mm
Tire to Pedal Spindle
139mm
170 mm cranks
161.3mm
170 mm cranks
188.1mm
170 mm cranks
Pedal Spindle to Ground Clearance
134mm
170 mm cranks
129mm
170 mm cranks
129mm
170 mm cranks

Base Build

S
M
L
Wheel Size
700C/29 in
622 mm BSD
700C/29 in
622 mm BSD
700C/29 in
622 mm BSD
Tire Width
2.6in
2.6in
2.6in
Tire Outer Diameter
754.1mm
754.1mm
754.1mm
Bike Length with Tires
1865.1mm
1886.1mm
1918.1mm

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
Off-road Touring
Source:https://www.chirubikes.com/en/kit-cadre/fukai/