2013 Ridley Bikes Helium SL Base

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

Geometry

XS
S
M
L
XL
Stack
530mm
545mm
575mm
602mm
625mm
Reach
375mm
385mm
390mm
400mm
405mm
Stack to Reach Ratio
1.41:1
1.42:1
1.47:1
1.51:1
1.54:1
Seat Tube Length, C-T
480mm
510mm
540mm
570mm
600mm
Seat Tube Length, C-C
440mm
470mm
500mm
530mm
560mm
Top Tube Length, Unknown
525mm
545mm
565mm
585mm
600mm
Top Tube Slope
7.7deg
6deg
6.1deg
5.8deg
5.2deg
Head Tube Angle
72deg
73deg
73.5deg
73.5deg
74deg
Seat Tube Angle
74deg
73.5deg
73deg
72.5deg
72.5deg
Head Tube Length
130mm
145mm
175mm
205mm
230mm
Bottom Bracket Drop
68mm
66mm
66mm
63mm
63mm
Bottom Bracket Height
271mm
273mm
273mm
276mm
276mm
Chainstay Length
405mm
405mm
405mm
408mm
408mm
Chainstay Length Horizontal
399.3mm
399.6mm
399.6mm
403.1mm
403.1mm
Front-Center
578.8mm
581.2mm
594.1mm
603.2mm
612.1mm
Front-Center Horizontal
574.8mm
577.4mm
590.4mm
599.9mm
608.9mm
Wheelbase
974mm
977mm
990mm
1003mm
1012mm
Fork Offset/Rake
47.2mm
44mm
47.6mm
38.6mm
41.1mm
Trail
60.5mm
mid/​neutral
57.7mm
mid/​neutral
50.8mm
mid/​neutral
60.2mm
mid/​neutral
54.5mm
mid/​neutral
Mechanical Trail
57.6mm
55.2mm
48.7mm
57.7mm
52.4mm
Wheel Flop
17.8mm
16.1mm
13.8mm
16.4mm
14.4mm
Standover Height
740mm
750mm
780mm
810mm
840mm
Tire to Pedal Spindle
69.8mm
170 mm cranks
72.2mm
170 mm cranks
85.1mm
170 mm cranks
94.2mm
170 mm cranks
103.1mm
170 mm cranks
Pedal Spindle to Ground Clearance
101mm
170 mm cranks
103mm
170 mm cranks
103mm
170 mm cranks
106mm
170 mm cranks
106mm
170 mm cranks

Base Build

XS
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
Tire Width
28mm
28mm
28mm
28mm
28mm
Tire Width Max
28mm
28mm
28mm
28mm
28mm
Tire Outer Diameter
678mm
678mm
678mm
678mm
678mm
Bike Length with Tires
1652mm
1655mm
1668mm
1681mm
1690mm

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://www.competitivecyclist.com/ridley-helium-sl-10-road-bike-frameset-2016#pdp-tab-geometry-chart