2017 Brother Cycles Big Bro Base XL

Build

700C/29 in × 2.4 in

Insights

Average stack and reach vs trend of rigid mtb bikes

Stack and Reach vs. Category Trend
View all sizes

Geometry

Stack
617mm
Reach
442mm
Stack to Reach Ratio
1.4:1
Seat Tube Length, C-T
559mm
Top Tube Length, Effective/Horizontal HT Top
630mm
Top Tube Slope
7.8deg
Head Tube Angle
71.5deg
Seat Tube Angle
73deg
Head Tube Length
125mm
Bottom Bracket Drop
60mm
Bottom Bracket Height
312mm
Chainstay Length
445mm
Chainstay Length Max
445mm
Chainstay Length Horizontal
440.9mm
Chainstay Length Horizontal Max
440.9mm
Front-Center
679.5mm
Front-Center Horizontal
676.9mm
Wheelbase
1117.8mm
Wheelbase Max
1117.8mm
Fork Offset/Rake
46mm
Trail
76mm
high
Mechanical Trail
72mm
Wheel Flop
22.9mm
Standover Height
865mm
Tire to Pedal Spindle Distance
With 170 mm cranks
137.6mm
Pedal Spindle to Ground Clearance
With 170 mm cranks
142mm

Base Build

Wheel Size
700C, 29 inch (622mm BSD)
Tire Width
2.4in
Tire Outer Diameter
743.9mm
Bike Length with Tires
1861.7mm
Suspension Type
Rigid, suspension corrected
Bar Type
Flat Bar
Frame Material
Steel
Fork Material
Steel
Brake Type
Disc
Source:Bike Counterculture Geometry Database