2023 Ironbridge 1779 Pinion 61

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
656.1mm
Reach
406.4mm
Stack to Reach Ratio
1.61:1
Seat Tube Length, C-T
610mm
Top Tube Length, Effective/Horizontal HT Top
605mm
Head Tube Angle
72.5deg
Seat Tube Angle
73deg
Head Tube Length
205mm
Bottom Bracket Drop
76mm
Bottom Bracket Height
275mm
Chainstay Length
450mm
Chainstay Length Horizontal
443.5mm
Front-Center
641mm
Front-Center Horizontal
636.5mm
Wheelbase
1080mm
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
859mm
Tire to Pedal Spindle Distance
With 170 mm cranks
120mm
Pedal Spindle to Ground Clearance
With 170 mm cranks
105mm

Pinion Build

Wheel Size
700C, 29 inch (622mm BSD)
Tire Width
40mm
Tire Outer Diameter
702mm
Bike Length with Tires
1782mm
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/