2018 Specialized Bicycles Stumpjumper Comp Alloy 29

Design
Flat Bar, Full suspension
Frame
Aluminum
Fork
Aluminum
Suspension
150mm fork travel, 135mm rear travel, 20% sag
Features
Disc brake
Somewhat upright stack and reachvs category
Somewhat upright stack and reachvs category
Very upright stack and reachvs category
Very upright stack and reachvs category
Very upright stack and reachvs category

Geometry

S
M
L
XL
XXL
Stack
617mm
617mm
645mm
663mm
686mm
Reach
389mm
417mm
435mm
461mm
477mm
Stack to Reach Ratio
1.59:1
1.48:1
1.48:1
1.44:1
1.44:1
Seat Tube Length, Unknown
396mm
430mm
468mm
523mm
564mm
Top Tube Length, Effective/Horizontal Center
551mm
582mm
611mm
647mm
674mm
Top Tube Slope
25.4deg
20.8deg
19.1deg
14.8deg
12.8deg
Head Tube Angle
67.5deg
67.5deg
67.5deg
67.5deg
67.5deg
Seat Tube Angle
74deg
74deg
75deg
75deg
75deg
Head Tube Length
125mm
145mm
170mm
171.5mm
171.5mm
Bottom Bracket Drop
36mm
36mm
36mm
36mm
36mm
Bottom Bracket Height
333.4mm
333.4mm
333.4mm
333.4mm
333.4mm
Chainstay Length Horizontal
437mm
437mm
437mm
437mm
437mm
Front-Center
679mm
706.9mm
735.9mm
769.8mm
795.8mm
Front-Center Horizontal
680mm
708mm
738mm
771mm
797mm
Wheelbase
1115mm
1143mm
1172mm
1206mm
1232mm
Fork Offset/Rake
46mm
46mm
46mm
46mm
46mm
Fork Length, Unknown
551mm
551mm
551mm
551mm
551mm
Trail
103.2mm
very high
103.2mm
very high
103.2mm
very high
103.2mm
very high
103.2mm
very high
Mechanical Trail
95.4mm
95.4mm
95.4mm
95.4mm
95.4mm
Wheel Flop
36.5mm
36.5mm
36.5mm
36.5mm
36.5mm
Standover Height
750mm
757mm
766mm
776mm
778mm
Tire to Pedal Spindle
139.5mm
170 mm cranks
167.5mm
170 mm cranks
196.5mm
170 mm cranks
230.4mm
170 mm cranks
256.4mm
170 mm cranks
Pedal Spindle to Ground Clearance
163.4mm
170 mm cranks
163.4mm
170 mm cranks
163.4mm
170 mm cranks
163.4mm
170 mm cranks
163.4mm
170 mm cranks

Comp Alloy 29 Build

S
M
L
XL
XXL
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
700C/29 in
622 mm BSD
Tire Width
2.3in
2.3in
2.3in
2.3in
2.3in
Tire Width Max
2.6in
2.6in
2.6in
2.6in
2.6in
Tire Outer Diameter
738.8mm
738.8mm
738.8mm
738.8mm
738.8mm
Bike Length with Tires
1853.8mm
1881.8mm
1910.8mm
1944.8mm
1970.8mm
Crank Length
170mm
170mm
170mm
170mm
170mm
Handlebar Width
780mm
780mm
780mm
780mm
780mm
Stem Length
45mm
60mm
60mm
60mm
60mm

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
Source:https://www.specialized.com/us/en/stumpjumper-comp-alloy-29-6fattie/p/129073?color=240010-129073