2023 Radon Bikes Spire Disc 8-10 48

Build

700C/29 in × 28 mm

Insights

Somewhat aggressive stack and reach vs trend of endurance road bikes
Design deviates from other sizes of Radon Bikes Spire

Stack and Reach vs. Category Trend
View all sizes

Geometry

Stack
503mm
Reach
376mm
Stack to Reach Ratio
1.34:1
Seat Tube Length, C-T
440mm
Top Tube Length, Effective/Horizontal HT Top
505mm
Top Tube Slope
9deg
Head Tube Angle
72deg
Seat Tube Angle
75.6deg
Head Tube Length
100mm
Bottom Bracket Drop
75mm
Bottom Bracket Height
264mm
Chainstay Length
408mm
Chainstay Length Horizontal
401.1mm
Front-Center
566.9mm
Front-Center Horizontal
562mm
Wheelbase
963mm
Fork Offset/Rake
44.6mm
Trail
63.3mm
mid/​neutral
Mechanical Trail
60.2mm
Wheel Flop
18.6mm
Standover Height
703.2mm
Tire to Pedal Spindle Distance
With 170 mm cranks
57.9mm
Pedal Spindle to Ground Clearance
With 170 mm cranks
94mm

Disc 8-10 Build

Wheel Size
700C, 29 inch (622mm BSD)
Tire Width
28mm
Tire Outer Diameter
678mm
Bike Length with Tires
1641mm
Crank Length
170mm
Handlebar Width
400mm
Stem Length
90mm
Suspension Type
Rigid, non-suspension corrected
Bar Type
Drop Bar
Frame Material
Carbon/Composite
Fork Material
Carbon/Composite
Brake Type
Disc

Published Sizing Recommendations

Height
158 cm
to
166 cm
Source:https://www.radon-bikes.de/it/roadbike/carbon/spire-disc-carbon/spire-disc-100-2023/