2018 Soma Fabrications Sandworm Base

Design
Flat Bar, Rigid, suspension corrected
Frame
Steel
Fork
Steel
Features
Disc brake
Somewhat upright stack and reachvs category
Average stack and reachvs category
Average stack and reachvs category
Somewhat aggressive stack and reachvs category

Geometry

MD
LG
XL
XXL
Stack
606mm
606mm
606mm
606mm
Reach
390.5mm
414mm
434mm
456mm
Stack to Reach Ratio
1.55:1
1.46:1
1.4:1
1.33:1
Seat Tube Length, C-T
393mm
444mm
495mm
546mm
Top Tube Length, Effective/Horizontal Center
576mm
600mm
620mm
642mm
Top Tube Slope
24.5deg
18.5deg
12.9deg
7.8deg
Head Tube Angle
69deg
69deg
69deg
69deg
Seat Tube Angle
73deg
73deg
73deg
73deg
Head Tube Length
110mm
110mm
110mm
110mm
Bottom Bracket Drop
60mm
60mm
60mm
60mm
Bottom Bracket Height
319.5mm
319.5mm
319.5mm
319.5mm
Chainstay Length
450mm
450mm
450mm
450mm
Chainstay Length Horizontal
446mm
446mm
446mm
446mm
Front-Center
652.8mm
673.7mm
696.6mm
717.5mm
Front-Center Horizontal
650mm
671mm
694mm
715mm
Wheelbase
1096mm
1117mm
1140mm
1161mm
Fork Offset/Rake
47mm
47mm
47mm
47mm
Fork Length (Axle-To-Crown)
484mm
484mm
484mm
484mm
Trail
95.3mm
very high
95.3mm
very high
95.3mm
very high
95.3mm
very high
Mechanical Trail
89mm
89mm
89mm
89mm
Wheel Flop
31.9mm
31.9mm
31.9mm
31.9mm
Standover Height
766mm
791mm
815mm
840mm
Tire to Pedal Spindle
103.3mm
170 mm cranks
124.2mm
170 mm cranks
147.1mm
170 mm cranks
168mm
170 mm cranks
Pedal Spindle to Ground Clearance
149.5mm
170 mm cranks
149.5mm
170 mm cranks
149.5mm
170 mm cranks
149.5mm
170 mm cranks

Base Build

MD
LG
XL
XXL
Wheel Size
26 in
559 mm BSD
26 in
559 mm BSD
26 in
559 mm BSD
26 in
559 mm BSD
Tire Width
100mm
100mm
100mm
100mm
Tire Outer Diameter
759mm
759mm
759mm
759mm
Bike Length with Tires
1855mm
1876mm
1899mm
1920mm

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 Fatbike
Source:https://www.somafab.com/archives/product/sandworm-fat-bike-26-27-5