2021 Trek Bikes 1120 Base 17.5

Build

700C/29 in × 3 in

Insights

Somewhat upright stack and reach vs trend of rigid mtb bikes

Stack and Reach vs. Category Trend
View all sizes

Geometry

Stack
634mm
Reach
422mm
Stack to Reach Ratio
1.5:1
Seat Tube Length, C-T
419mm
Top Tube Length, Effective/Horizontal HT Top
586mm
Top Tube Slope
23.2deg
Head Tube Angle
70.4deg
Seat Tube Angle
73.5deg
Head Tube Length
100mm
Bottom Bracket Drop
75mm
Bottom Bracket Height
312.2mm
Chainstay Length
440mm
Chainstay Length Max
440mm
Chainstay Length Horizontal
433.6mm
Chainstay Length Horizontal Max
433.6mm
Front-Center
678.6mm
Front-Center Horizontal
674.4mm
Wheelbase
1108mm
Wheelbase Max
1108mm
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
791mm
Tire to Pedal Spindle Distance
With 170 mm cranks
121.4mm
Pedal Spindle to Ground Clearance
With 170 mm cranks
142.2mm

Base Build

Wheel Size
700C, 29 inch (622mm BSD)
Tire Width
3in
Tire Outer Diameter
774.4mm
Bike Length with Tires
1882.4mm
Stem Length
70mm
Suspension Type
Rigid, suspension corrected
Bar Type
Flat Bar
Frame Material
Aluminum
Fork Material
Carbon/Composite
Brake Type
Disc

Published Sizing Recommendations

Height
161 cm
to
175 cm
PBH
76 cm
to
82 cm
Source:https://www.trekbikes.com/us/en_US/bikes/adventure-touring-bikes/1120/1120/p/33304/