2021 Trek Bikes 1120 Base 21.5

Build

700C/29 in × 3 in

Insights

Average stack and reach vs trend of rigid mtb bikes

Stack and Reach vs. Category Trend
View all sizes

Geometry

Stack
651mm
Reach
471mm
Stack to Reach Ratio
1.38:1
Seat Tube Length, C-T
521mm
Top Tube Length, Effective/Horizontal HT Top
643mm
Top Tube Slope
13.8deg
Head Tube Angle
70.3deg
Seat Tube Angle
73.5deg
Head Tube Length
120mm
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
736.3mm
Front-Center Horizontal
732.4mm
Wheelbase
1166mm
Wheelbase Max
1166mm
Fork Offset/Rake
51mm
Fork Length (Axle-To-Crown)
510mm
Trail
84.5mm
very high
Mechanical Trail
79.5mm
Wheel Flop
26.8mm
Standover Height
792mm
Tire to Pedal Spindle Distance
With 170 mm cranks
179.1mm
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
1940.4mm
Stem Length
80mm
Suspension Type
Rigid, suspension corrected
Bar Type
Flat Bar
Frame Material
Aluminum
Fork Material
Carbon/Composite
Brake Type
Disc

Published Sizing Recommendations

Height
186 cm
to
196 cm
PBH
87 cm
to
92 cm
Source:https://www.trekbikes.com/us/en_US/bikes/adventure-touring-bikes/1120/1120/p/33304/