2023 Ridley Bikes Helium SL carbon

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

Geometry

XXS
XS
S
M
L
XL
Stack
507mm
527mm
542mm
573mm
599mm
624mm
Reach
379mm
374mm
384mm
390mm
396mm
403mm
Stack to Reach Ratio
1.34:1
1.41:1
1.41:1
1.47:1
1.51:1
1.55:1
Seat Tube Length, C-T
450mm
480mm
510mm
540mm
570mm
600mm
Top Tube Length, Effective/Horizontal Center
515mm
525mm
545mm
565mm
585mm
600mm
Top Tube Slope
8.3deg
7.4deg
5.7deg
5.9deg
5.6deg
5.1deg
Head Tube Angle
71.8deg
72deg
73deg
73.5deg
73.5deg
74deg
Seat Tube Angle
75deg
74deg
73.5deg
73deg
72.5deg
72.5deg
Head Tube Length
110mm
130mm
145mm
175mm
205mm
230mm
Bottom Bracket Drop
68mm
68mm
66mm
66mm
63mm
63mm
Bottom Bracket Height
271mm
271mm
273mm
273mm
276mm
276mm
Chainstay Length
405mm
405mm
405mm
405mm
408mm
408mm
Chainstay Length Horizontal
399.3mm
399.3mm
399.6mm
399.6mm
403.1mm
403.1mm
Front-Center
574.8mm
574.8mm
581.2mm
591.1mm
605.2mm
614.1mm
Front-Center Horizontal
570.8mm
570.8mm
577.4mm
587.4mm
601.9mm
610.9mm
Wheelbase
970mm
970mm
977mm
987mm
1005mm
1014mm
Fork Offset/Rake
45mm
45.3mm
45.8mm
45.3mm
45.2mm
45.2mm
Trail
64mm
mid/​neutral
62.5mm
mid/​neutral
55.8mm
mid/​neutral
53.2mm
mid/​neutral
53.3mm
mid/​neutral
50.2mm
mid/​neutral
Mechanical Trail
60.8mm
59.5mm
53.3mm
51mm
51.1mm
48.2mm
Wheel Flop
19mm
18.4mm
15.6mm
14.5mm
14.5mm
13.3mm
Tire to Pedal Spindle
65.8mm
170 mm cranks
65.8mm
170 mm cranks
72.2mm
170 mm cranks
82.1mm
170 mm cranks
96.2mm
170 mm cranks
105.1mm
170 mm cranks
Pedal Spindle to Ground Clearance
101mm
170 mm cranks
101mm
170 mm cranks
103mm
170 mm cranks
103mm
170 mm cranks
106mm
170 mm cranks
106mm
170 mm cranks

carbon Build

XXS
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
700C/29 in
622 mm BSD
Tire Width
28mm
28mm
28mm
28mm
28mm
28mm
Tire Outer Diameter
678mm
678mm
678mm
678mm
678mm
678mm
Bike Length with Tires
1648mm
1648mm
1655mm
1665mm
1683mm
1692mm

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://ridley-bikes.com/en_US/bikes/SBIHEDRID135