2021 BMC Switzerland ALPENCHALLENGE Base M

Build

700C/29 in × 35 mm

Insights

Somewhat aggressive stack and reach vs trend of commuter bikes

Stack and Reach vs. Category Trend
View all sizes

Geometry

Stack
571mm
Reach
405mm
Stack to Reach Ratio
1.41:1
Seat Tube Length, C-T
510mm
Top Tube Length, Effective/Horizontal HT Top
585mm
Top Tube Slope
8.6deg
Head Tube Angle
71deg
Seat Tube Angle
72.5deg
Head Tube Length
165mm
Bottom Bracket Drop
50mm
Bottom Bracket Height
296mm
Chainstay Length
436mm
Chainstay Length Horizontal
433.1mm
Front-Center
637mm
Front-Center Horizontal
634.9mm
Wheelbase
1068mm
Fork Offset/Rake
48mm
Fork Length (On-Axis)
436mm
Trail
68.4mm
high
Mechanical Trail
64.7mm
Wheel Flop
21.1mm
Tire to Pedal Spindle Distance
With 170 mm cranks
121mm
Pedal Spindle to Ground Clearance
With 170 mm cranks
126mm

Base Build

Wheel Size
700C, 29 inch (622mm BSD)
Tire Width
35mm
Tire Outer Diameter
692mm
Bike Length with Tires
1760mm
Crank Length
170mm
Handlebar Width
600mm
Stem Length
90mm
Stem Angle
-8deg
Suspension Type
Rigid, non-suspension corrected
Bar Type
Flat Bar
Frame Material
Aluminum
Fork Material
Aluminum
Brake Type
Disc

Published Sizing Recommendations

Height
168 cm
to
180 cm
Source:www.bmc-switzerland.com