2025 Esker Cycles Lorax Steel (51.5mm Offset)

Design
Drop Bar, Rigid, suspension corrected
Frame
Steel
Fork
Carbon/Composite
Features
Disc brake
Somewhat upright stack and reachvs category
Average stack and reachvs category
Somewhat upright stack and reachvs category
Average stack and reachvs category

Geometry

S1/SM
S2/MD
S3/LG
S4/XL
Stack
600mm
610mm
645mm
670mm
Reach
365mm
380mm
390mm
405mm
Stack to Reach Ratio
1.64:1
1.61:1
1.65:1
1.65:1
Seat Tube Length, C-T
400mm
460mm
510mm
560mm
Top Tube Length, Effective/Horizontal HT Top
537mm
560mm
587mm
610mm
Head Tube Angle
68deg
68deg
68deg
68deg
Effective Seat Tube Angle, ETT HT Top
74deg
73.5deg
73deg
73deg
Head Tube Length
90mm
100mm
138mm
165mm
Bottom Bracket Drop
68mm
68mm
68mm
68mm
Bottom Bracket Height
302.7mm
302.7mm
302.7mm
302.7mm
Chainstay Length
445mm
445mm
445mm
445mm
Chainstay Length Horizontal
439.8mm
439.8mm
439.8mm
439.8mm
Front-Center
638.9mm
657.8mm
681.6mm
706.5mm
Front-Center Horizontal
635.2mm
654.2mm
678.2mm
703.2mm
Wheelbase
1075mm
1094mm
1118mm
1143mm
Fork Offset/Rake
51.5mm
51.5mm
51.5mm
51.5mm
Fork Length (Axle-To-Crown)
495mm
495mm
495mm
495mm
Trail
94.2mm
very high
94.2mm
very high
94.2mm
very high
94.2mm
very high
Mechanical Trail
87.4mm
87.4mm
87.4mm
87.4mm
Wheel Flop
32.7mm
32.7mm
32.7mm
32.7mm
Tire to Pedal Spindle
98.2mm
170 mm cranks
117.1mm
170 mm cranks
140.9mm
170 mm cranks
165.8mm
170 mm cranks
Pedal Spindle to Ground Clearance
132.7mm
170 mm cranks
132.7mm
170 mm cranks
132.7mm
170 mm cranks
132.7mm
170 mm cranks

Steel (51.5mm Offset) Build

S1/SM
S2/MD
S3/LG
S4/XL
Wheel Size
700C/29 in
622 mm BSD
700C/29 in
622 mm BSD
700C/29 in
622 mm BSD
700C/29 in
622 mm BSD
Tire Width
2.35in
2.35in
2.35in
2.35in
Tire Width Max
2.6in
2.6in
2.6in
2.6in
Tire Outer Diameter
741.4mm
741.4mm
741.4mm
741.4mm
Bike Length with Tires
1816.4mm
1835.4mm
1859.4mm
1884.4mm

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
Off-road Touring
Source:https://eskercycles.com/products/2024-lorax-frameset