2023 Ironbridge 1779 Rohloff 51

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

Stack and Reach vs. Category Trend
View all sizes

Geometry

Stack
572.9mm
Reach
375.5mm
Stack to Reach Ratio
1.53:1
Seat Tube Length, C-T
510mm
Top Tube Length, Effective/Horizontal HT Top
535mm
Head Tube Angle
71.5deg
Seat Tube Angle
74.5deg
Head Tube Length
110mm
Bottom Bracket Drop
87mm
Bottom Bracket Height
264mm
Chainstay Length
450mm
Chainstay Length Horizontal
441.5mm
Front-Center
591.9mm
Front-Center Horizontal
585.5mm
Wheelbase
1027mm
Fork Offset/Rake
45mm
Fork Length (Axle-To-Crown)
400mm
Trail
70mm
high
Mechanical Trail
66.4mm
Wheel Flop
21.1mm
Standover Height
761mm
Tire to Pedal Spindle Distance
With 170 mm cranks
70.9mm
Pedal Spindle to Ground Clearance
With 170 mm cranks
94mm

Rohloff Build

Wheel Size
700C, 29 inch (622mm BSD)
Tire Width
40mm
Tire Outer Diameter
702mm
Bike Length with Tires
1729mm
Suspension Type
Rigid, non-suspension corrected
Bar Type
Drop Bar
Frame Material
Steel
Fork Material
Carbon/Composite
Brake Type
Disc
Source:https://www.ironbridge-bicycles.co.uk/bicycles/1779-handmade-full-fillet-frame/