2025 Bearclaw Bicycle Co. Bruno 27.5

Design
Flat Bar, Rigid, suspension corrected
Frame
Titanium
Features
Disc brake, Single-speed capable
Average stack and reachvs category
Somewhat aggressive stack and reachvs category
Somewhat aggressive stack and reachvs category
Somewhat aggressive stack and reachvs category

Geometry

S
M
L
XL
Stack
591mm
595mm
600mm
609mm
Reach
401mm
425mm
449mm
476mm
Stack to Reach Ratio
1.47:1
1.4:1
1.34:1
1.28:1
Seat Tube Length, C-T
380mm
440mm
480mm
520mm
Top Tube Length, Effective/Horizontal HT Top
570mm
595mm
620mm
650mm
Top Tube Slope
24.1deg
17.5deg
13.4deg
10deg
Head Tube Angle
68deg
68deg
68deg
68deg
Seat Tube Angle
74deg
74deg
74deg
74deg
Head Tube Length
100mm
105mm
110mm
120mm
Bottom Bracket Drop
66mm
66mm
66mm
66mm
Bottom Bracket Height
340.3mm
340.3mm
340.3mm
340.3mm
Chainstay Length
458mm
458mm
458mm
458mm
Chainstay Length Horizontal
453.2mm
453.2mm
453.2mm
453.2mm
Front-Center
671mm
697mm
722mm
753mm
Front-Center Horizontal
667.8mm
693.8mm
719.8mm
750.8mm
Wheelbase
1121mm
1147mm
1173mm
1204mm
Fork Offset/Rake
51mm
51mm
51mm
51mm
Fork Length (On-Axis)
489mm
489mm
489mm
489mm
Trail
109.2mm
very high
109.2mm
very high
109.2mm
very high
109.2mm
very high
Mechanical Trail
101.2mm
101.2mm
101.2mm
101.2mm
Wheel Flop
37.9mm
37.9mm
37.9mm
37.9mm
Tire to Pedal Spindle
94.7mm
170 mm cranks
120.7mm
170 mm cranks
145.7mm
170 mm cranks
176.7mm
170 mm cranks
Pedal Spindle to Ground Clearance
170.3mm
170 mm cranks
170.3mm
170 mm cranks
170.3mm
170 mm cranks
170.3mm
170 mm cranks

27.5 Build

S
M
L
XL
Wheel Size
650B/27.5 in
584 mm BSD
650B/27.5 in
584 mm BSD
650B/27.5 in
584 mm BSD
650B/27.5 in
584 mm BSD
Tire Width
4.5in
4.5in
4.5in
4.5in
Tire Outer Diameter
812.6mm
812.6mm
812.6mm
812.6mm
Bike Length with Tires
1933.6mm
1959.6mm
1985.6mm
2016.6mm

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
Rigid Fatbike
Source:https://bearclawbicycleco.com/pages/bruno