2021 Trek Bikes 1120 Base 15.5

Build

700C/29 in × 3 in

Insights

Very upright stack and reach vs trend of rigid mtb bikes

Stack and Reach vs. Category Trend
View all sizes

Geometry

Stack
634mm
Reach
396mm
Stack to Reach Ratio
1.6:1
Seat Tube Length, C-T
394mm
Top Tube Length, Effective/Horizontal HT Top
560mm
Top Tube Slope
26.8deg
Head Tube Angle
70.4deg
Seat Tube Angle
73.5deg
Head Tube Length
100mm
Bottom Bracket Drop
76mm
Bottom Bracket Height
311.2mm
Chainstay Length
440mm
Chainstay Length Max
440mm
Chainstay Length Horizontal
433.4mm
Chainstay Length Horizontal Max
433.4mm
Front-Center
653.1mm
Front-Center Horizontal
648.6mm
Wheelbase
1082mm
Wheelbase Max
1082mm
Fork Offset/Rake
51mm
Fork Length (Axle-To-Crown)
510mm
Trail
83.7mm
very high
Mechanical Trail
78.9mm
Wheel Flop
26.5mm
Standover Height
778mm
Tire to Pedal Spindle Distance
With 170 mm cranks
95.9mm
Pedal Spindle to Ground Clearance
With 170 mm cranks
141.2mm

Base Build

Wheel Size
700C, 29 inch (622mm BSD)
Tire Width
3in
Tire Outer Diameter
774.4mm
Bike Length with Tires
1856.4mm
Stem Length
60mm
Suspension Type
Rigid, suspension corrected
Bar Type
Flat Bar
Frame Material
Aluminum
Fork Material
Carbon/Composite
Brake Type
Disc

Published Sizing Recommendations

Height
153 cm
to
162 cm
PBH
72 cm
to
76 cm
Source:https://www.trekbikes.com/us/en_US/bikes/adventure-touring-bikes/1120/1120/p/33304/