2018 Base Silverback Bikes Sirelli Carbon Disc Base

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

Geometry

XXS
XL
S
M
L
XL
Stack
493.8mm
511.5mm
522.8mm
534.9mm
551.6mm
571.6mm
Reach
367.7mm
372.9mm
380mm
391.5mm
396.6mm
405.2mm
Stack to Reach Ratio
1.34:1
1.37:1
1.38:1
1.37:1
1.39:1
1.41:1
Seat Tube Length, C-T
413mm
452mm
492mm
533mm
563mm
593mm
Top Tube Length, Effective/Horizontal HT Top
500mm
510mm
525mm
545mm
560mm
580mm
Top Tube Slope
11.3deg
8.7deg
5.4deg
2.4deg
1.2deg
0.5deg
Head Tube Angle
70.5deg
71.5deg
72deg
73.25deg
73.25deg
73.5deg
Seat Tube Angle
75deg
75deg
74.5deg
74deg
73.5deg
73deg
Head Tube Length
100mm
115mm
125mm
135mm
150mm
170mm
Bottom Bracket Drop
66mm
66mm
66mm
64mm
64mm
64mm
Bottom Bracket Height
270mm
270mm
270mm
272mm
272mm
272mm
Chainstay Length
405mm
405mm
405mm
405mm
408mm
408mm
Chainstay Length Horizontal
399.6mm
399.6mm
399.6mm
399.9mm
403mm
403mm
Front-Center
576.2mm
578.2mm
584.2mm
579.6mm
589.5mm
601.5mm
Front-Center Horizontal
572.4mm
574.4mm
580.4mm
576.1mm
586.1mm
598.1mm
Wheelbase
972mm
974mm
980mm
976mm
989mm
1001mm
Fork Offset/Rake
52mm
52mm
52mm
43mm
43mm
43mm
Trail
63.8mm
mid/​neutral
57.6mm
mid/​neutral
54.5mm
mid/​neutral
56.2mm
mid/​neutral
56.2mm
mid/​neutral
54.7mm
mid/​neutral
Mechanical Trail
60.2mm
54.6mm
51.8mm
53.8mm
53.8mm
52.4mm
Wheel Flop
20.1mm
17.3mm
16mm
15.5mm
15.5mm
14.9mm
Standover Height
698.4mm
715.9mm
749.8mm
776.7mm
798.3mm
821.7mm
Tire to Pedal Spindle
70.2mm
170 mm cranks
72.2mm
170 mm cranks
78.2mm
170 mm cranks
73.6mm
170 mm cranks
83.5mm
170 mm cranks
95.5mm
170 mm cranks
Pedal Spindle to Ground Clearance
100mm
170 mm cranks
100mm
170 mm cranks
100mm
170 mm cranks
102mm
170 mm cranks
102mm
170 mm cranks
102mm
170 mm cranks

Base Build

XXS
XL
S
M
L
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
700C/29 in
622 mm BSD
700C/29 in
622 mm BSD
Tire Width
25mm
25mm
25mm
25mm
25mm
25mm
Tire Outer Diameter
672mm
672mm
672mm
672mm
672mm
672mm
Bike Length with Tires
1644mm
1646mm
1652mm
1648mm
1661mm
1673mm

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
Performance Road
Source:https://swishcycles.co.uk/product/silverback-sirelli-disc/