2017 Ridley Bikes Helium X Base M

Build

700C/29 in × 25 mm

Insights

Average stack and reach vs trend of performance road bikes
Design deviates from other sizes of Ridley Bikes Helium X

Stack and Reach vs. Category Trend
View all sizes

Geometry

Stack
573mm
Reach
390mm
Stack to Reach Ratio
1.47:1
Seat Tube Length, C-T
540mm
Seat Tube Length, C-C
500mm
Top Tube Length, Effective/Horizontal Center
565mm
Top Tube Length, Actual C-C
548mm
Top Tube Slope
7.4deg
Head Tube Angle
73.5deg
Seat Tube Angle
73deg
Head Tube Length
172mm
Bottom Bracket Drop
66mm
Bottom Bracket Height
270mm
Chainstay Length
405mm
Chainstay Length Horizontal
399.6mm
Front-Center
590.1mm
Front-Center Horizontal
586.4mm
Wheelbase
986mm
Fork Offset/Rake
44.3mm
Trail
53.3mm
mid/​neutral
Mechanical Trail
51.1mm
Wheel Flop
14.5mm
Tire to Pedal Spindle Distance
With 170 mm cranks
84.1mm
Pedal Spindle to Ground Clearance
With 170 mm cranks
100mm

Base Build

Wheel Size
700C, 29 inch (622mm BSD)
Tire Width
25mm
Tire Outer Diameter
672mm
Bike Length with Tires
1658mm
Suspension Type
Rigid, non-suspension corrected
Bar Type
Drop Bar
Frame Material
Carbon/Composite
Fork Material
Carbon/Composite
Brake Type
Rim
Source:ridley