2021 BMC Switzerland ALPENCHALLENGE Base L

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
591mm
Reach
415mm
Stack to Reach Ratio
1.42:1
Seat Tube Length, C-T
560mm
Top Tube Length, Effective/Horizontal HT Top
601mm
Top Tube Slope
5.6deg
Head Tube Angle
71deg
Seat Tube Angle
72.5deg
Head Tube Length
187mm
Bottom Bracket Drop
50mm
Bottom Bracket Height
296mm
Chainstay Length
436mm
Chainstay Length Horizontal
433.1mm
Front-Center
654mm
Front-Center Horizontal
651.9mm
Wheelbase
1085mm
Fork Offset/Rake
48mm
Fork Length (On-Axis)
405mm
Trail
68.4mm
high
Mechanical Trail
64.7mm
Wheel Flop
21.1mm
Tire to Pedal Spindle Distance
With 175 mm cranks
133mm
Pedal Spindle to Ground Clearance
With 175 mm cranks
121mm

Base Build

Wheel Size
700C, 29 inch (622mm BSD)
Tire Width
35mm
Tire Outer Diameter
692mm
Bike Length with Tires
1777mm
Crank Length
175mm
Handlebar Width
600mm
Stem Length
100mm
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
178 cm
to
190 cm
Source:www.bmc-switzerland.com