2022 Boken Miru Base

Design
Drop Bar, Rigid, non-suspension corrected
Frame
Titanium
Fork
Carbon/Composite
Features
Disc brake
Somewhat aggressive stack and reachvs category
Somewhat aggressive stack and reachvs category
Somewhat aggressive stack and reachvs category
Somewhat aggressive stack and reachvs category
Somewhat aggressive stack and reachvs category

Geometry

52cm - XS
54cm - S
55cm - M
57cm - L
59cm - XL
Stack
531mm
552mm
568mm
589mm
608mm
Reach
384mm
386mm
390mm
395mm
404mm
Stack to Reach Ratio
1.38:1
1.43:1
1.46:1
1.49:1
1.5:1
Seat Tube Length, C-T
470mm
490mm
510mm
530mm
550mm
Top Tube Length, Effective/Horizontal Center
520mm
540mm
550mm
570mm
590mm
Top Tube Slope
8.6deg
8.7deg
8.3deg
8.4deg
8.3deg
Head Tube Angle
70deg
71deg
71.5deg
72deg
72deg
Seat Tube Angle
76deg
75deg
74deg
73.5deg
73deg
Head Tube Length
100mm
120mm
135mm
155mm
175mm
Bottom Bracket Drop
70.9mm
70.9mm
74.2mm
71mm
67.7mm
Bottom Bracket Height
295.1mm
295.1mm
291.8mm
295mm
298.3mm
Chainstay Length
430mm
430mm
430mm
430mm
430mm
Chainstay Length Horizontal
424.1mm
424.1mm
423.6mm
424.1mm
424.6mm
Front-Center
612mm
612mm
608mm
618mm
632mm
Front-Center Horizontal
607.9mm
607.9mm
603.5mm
613.9mm
628.4mm
Wheelbase
1032mm
1032mm
1027mm
1038mm
1053mm
Fork Offset/Rake
53mm
53.2mm
45.7mm
50mm
50mm
Trail
76.8mm
high
69.8mm
high
74.2mm
high
66.4mm
high
66.4mm
high
Mechanical Trail
72.2mm
66mm
70.4mm
63.1mm
63.1mm
Wheel Flop
24.7mm
21.5mm
22.3mm
19.5mm
19.5mm
Tire to Pedal Spindle
76mm
170 mm cranks
76mm
170 mm cranks
72mm
170 mm cranks
82mm
170 mm cranks
96mm
170 mm cranks
Pedal Spindle to Ground Clearance
125.1mm
170 mm cranks
125.1mm
170 mm cranks
121.8mm
170 mm cranks
125mm
170 mm cranks
128.3mm
170 mm cranks

Base Build

52cm - XS
54cm - S
55cm - M
57cm - L
59cm - XL
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
55mm
55mm
55mm
55mm
55mm
Tire Outer Diameter
732mm
732mm
732mm
732mm
732mm
Bike Length with Tires
1764mm
1764mm
1759mm
1770mm
1785mm

Published Sizing Recommendations

Height
160 cm
to
168 cm
165 cm
to
175 cm
172 cm
to
184 cm
181 cm
to
188 cm
186 cm
to
193 cm

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
All-road/Gravel
Source:https://www.7hundred.co.uk/bikes/bike-frames/boken-miru-titanium-gravel-and-adventure-frame-fork-sunset-anodised__61441