2016 Surly Bikes Troll Base

Category
Rigid MTB
Design
Flat Bar, Rigid, non-suspension corrected
Frame
Steel
Fork
Steel
Features
Disc brake
Somewhat aggressive stack and reachvs category
Somewhat aggressive stack and reachvs category
Somewhat aggressive stack and reachvs category
Somewhat aggressive stack and reachvs category
Somewhat aggressive stack and reachvs category

Geometry

XS
S
M
L
XL
Stack
551mm
561mm
570mm
585mm
604mm
Reach
371mm
393mm
415mm
431mm
446mm
Stack to Reach Ratio
1.49:1
1.43:1
1.37:1
1.36:1
1.35:1
Seat Tube Length, C-T
336mm
406mm
457mm
508mm
559mm
Top Tube Length, Effective/Horizontal Center
545mm
570mm
595mm
615mm
630mm
Top Tube Slope
26.1deg
18.7deg
13.6deg
9.7deg
6.5deg
Head Tube Angle
71deg
71deg
71deg
71deg
71deg
Seat Tube Angle
73deg
73deg
73deg
73deg
73deg
Head Tube Length
125mm
135mm
145mm
160mm
180mm
Bottom Bracket Drop
40mm
40mm
40mm
40mm
40mm
Bottom Bracket Height
315.7mm
315.7mm
315.7mm
315.7mm
315.7mm
Chainstay Length
425mm
425mm
425mm
425mm
425mm
Chainstay Length Max
425mm
425mm
425mm
425mm
425mm
Chainstay Length Horizontal
423.1mm
423.1mm
423.1mm
423.1mm
423.1mm
Chainstay Length Horizontal Max
423.1mm
423.1mm
423.1mm
423.1mm
423.1mm
Front-Center
594.2mm
619.2mm
644.1mm
664.1mm
686.1mm
Front-Center Horizontal
592.9mm
617.9mm
642.9mm
662.9mm
684.9mm
Wheelbase
1016mm
1041mm
1066mm
1086mm
1108mm
Wheelbase Max
1016mm
1041mm
1066mm
1086mm
1108mm
Fork Offset/Rake
43mm
43mm
43mm
43mm
43mm
Fork Length (Axle-To-Crown)
420mm
420mm
420mm
420mm
420mm
Trail
77mm
high
77mm
high
77mm
high
77mm
high
77mm
high
Mechanical Trail
72.8mm
72.8mm
72.8mm
72.8mm
72.8mm
Wheel Flop
23.7mm
23.7mm
23.7mm
23.7mm
23.7mm
Standover Height
720mm
749mm
778mm
809mm
843mm
Tire to Pedal Spindle
68.5mm
170 mm cranks
93.5mm
170 mm cranks
118.4mm
170 mm cranks
138.4mm
170 mm cranks
160.4mm
170 mm cranks
Pedal Spindle to Ground Clearance
145.7mm
170 mm cranks
145.7mm
170 mm cranks
145.7mm
170 mm cranks
145.7mm
170 mm cranks
145.7mm
170 mm cranks

Base Build

XS
S
M
L
XL
Wheel Size
26 in
559 mm BSD
26 in
559 mm BSD
26 in
559 mm BSD
26 in
559 mm BSD
26 in
559 mm BSD
Tire Width
3in
3in
3in
3in
3in
Tire Width Max
3in
3in
3in
3in
3in
Tire Outer Diameter
711.4mm
711.4mm
711.4mm
711.4mm
711.4mm
Bike Length with Tires
1727.4mm
1752.4mm
1777.4mm
1797.4mm
1819.4mm

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
Rigid MTB
Source:Bike Counterculture Geometry Database