2023 Ironbridge 1779 Pinion 58

Build

700C/29 in × 40 mm

Insights

Somewhat upright stack and reach vs trend of sport touring bikes
Design deviates from other sizes of Ironbridge 1779
Bar type unusual for category
This: Swept Back Bar
Category: Drop Bar
vs sport touring bikes

Stack and Reach vs. Category Trend
View all sizes

Geometry

Stack
632.5mm
Reach
394.3mm
Stack to Reach Ratio
1.6:1
Seat Tube Length, C-T
580mm
Top Tube Length, Effective/Horizontal HT Top
580mm
Head Tube Angle
72.5deg
Seat Tube Angle
73deg
Head Tube Length
175mm
Bottom Bracket Drop
81mm
Bottom Bracket Height
270mm
Chainstay Length
450mm
Chainstay Length Horizontal
442.7mm
Front-Center
620.7mm
Front-Center Horizontal
615.4mm
Wheelbase
1058mm
Fork Offset/Rake
45mm
Fork Length (Axle-To-Crown)
400mm
Trail
63.5mm
mid/​neutral
Mechanical Trail
60.6mm
Wheel Flop
18.2mm
Standover Height
828mm
Tire to Pedal Spindle Distance
With 170 mm cranks
99.7mm
Pedal Spindle to Ground Clearance
With 170 mm cranks
100mm

Pinion Build

Wheel Size
700C, 29 inch (622mm BSD)
Tire Width
40mm
Tire Outer Diameter
702mm
Bike Length with Tires
1760mm
Suspension Type
Rigid, non-suspension corrected
Bar Type
Swept Back Bar
Frame Material
Steel
Fork Material
Carbon/Composite
Brake Type
Disc
Source:https://www.ironbridge-bicycles.co.uk/bicycles/1779-pinion/