1988 Mongoose Bicycles Switchback Base

Category
Rigid MTB
Design
Flat Bar, Rigid, non-suspension corrected
Frame
Steel
Fork
Steel
Features
Rim brake

Geometry

20"
16"
18"
Stack
500mm
Reach
417mm
Stack to Reach Ratio
1.2:1
Seat Tube Length, C-T
509mm
394mm
456mm
Top Tube Length, Effective/Horizontal Unknown
582mm
547mm
577mm
Top Tube Slope
0deg
Head Tube Angle
70deg
Seat Tube Angle
71deg
Head Tube Length
130mm
76mm
72mm
Bottom Bracket Drop
30mm
39.5mm
39.4mm
Bottom Bracket Height
338.3mm
241.5mm
241.6mm
Chainstay Length
445mm
445mm
445mm
Chainstay Length Horizontal
444mm
443.2mm
443.3mm
Front-Center
638mm
628mm
623mm
Front-Center Horizontal
636mm
626.8mm
621.8mm
Wheelbase
1080mm
1070mm
1065mm
Fork Offset/Rake
50mm
50mm
50mm
Fork Length (On-Axis)
800mm
Trail
80.8mm
very high
Mechanical Trail
76mm
Wheel Flop
26mm
Tire to Pedal Spindle
99.7mm
170 mm cranks
177mm
170 mm cranks
172mm
170 mm cranks
Pedal Spindle to Ground Clearance
168.3mm
170 mm cranks
71.5mm
170 mm cranks
71.6mm
170 mm cranks

Base Build

20"
16"
18"
Wheel Size
26 in
559 mm BSD
26 in
559 mm BSD
26 in
559 mm BSD
Tire Width
1.5in
1.5mm
1.5mm
Tire Outer Diameter
736.6mm
562mm
562mm
Bike Length with Tires
1816.6mm
1632mm
1627mm
Crank Length
170mm
170mm
170mm

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 MTB
Source:http://www.vintagemongoose.com/pdfs/mongoose_cat88.pdf