2023 Ironbridge 1779 Pinion 50

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
566.4mm
Reach
371.9mm
Stack to Reach Ratio
1.52:1
Seat Tube Length, C-T
500mm
Top Tube Length, Effective/Horizontal HT Top
530mm
Head Tube Angle
71deg
Seat Tube Angle
74.5deg
Head Tube Length
105mm
Bottom Bracket Drop
87mm
Bottom Bracket Height
264mm
Chainstay Length
450mm
Chainstay Length Horizontal
441.5mm
Front-Center
590.9mm
Front-Center Horizontal
584.5mm
Wheelbase
1026mm
Fork Offset/Rake
45mm
Fork Length (Axle-To-Crown)
400mm
Trail
73.3mm
high
Mechanical Trail
69.3mm
Wheel Flop
22.6mm
Standover Height
753mm
Tire to Pedal Spindle Distance
With 170 mm cranks
69.9mm
Pedal Spindle to Ground Clearance
With 170 mm cranks
94mm

Pinion Build

Wheel Size
700C, 29 inch (622mm BSD)
Tire Width
40mm
Tire Outer Diameter
702mm
Bike Length with Tires
1728mm
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/