2023 Ironbridge 1779 Rohloff
- Category
- Sport Touring
- Design
- Drop Bar, Rigid, non-suspension corrected
- Frame
- Steel
- Fork
- Carbon/Composite
- Features
- Disc brake
Somewhat upright stack and reachvs category | Somewhat upright stack and reachvs category | Somewhat upright stack and reachvs category | Somewhat upright stack and reachvs category | Somewhat upright stack and reachvs category | Somewhat upright stack and reachvs category | Somewhat upright stack and reachvs category | Very upright stack and reachvs category | Very upright stack and reachvs category | Somewhat upright stack and reachvs category | Very upright stack and reachvs category | Somewhat upright stack and reachvs category | Somewhat upright stack and reachvs category | Somewhat upright stack and reachvs category | Somewhat upright stack and reachvs category | Somewhat upright stack and reachvs category |
Geometry
49 | 47 | 48 | 50 | 51 | 52 | 53 | 54 | 55 | 56 | 57 | 58 | 59 | 60 | 61 | 62 | |
Stack | 566.4mm | 559.8mm | 559.8mm | 566.4mm | 572.9mm | 577.7mm | 589mm | 598.5mm | 608mm | 613.4mm | 623mm | 632.5mm | 637.1mm | 646.6mm | 656.1mm | 665.7mm |
Reach | 366.9mm | 372.3mm | 372.3mm | 371.9mm | 375.5mm | 378.9mm | 377.1mm | 374mm | 375.9mm | 385.3mm | 387.3mm | 394.3mm | 402.4mm | 404.4mm | 406.4mm | 409.4mm |
Stack to Reach Ratio | 1.54:1 | 1.5:1 | 1.5:1 | 1.52:1 | 1.53:1 | 1.52:1 | 1.56:1 | 1.6:1 | 1.62:1 | 1.59:1 | 1.61:1 | 1.6:1 | 1.58:1 | 1.6:1 | 1.61:1 | 1.63:1 |
Seat Tube Length, C-T | 490mm | 470mm | 480mm | 500mm | 510mm | 520mm | 530mm | 540mm | 550mm | 560mm | 570mm | 580mm | 590mm | 600mm | 610mm | 620mm |
Top Tube Length, Effective/Horizontal HT Top | 525mm | 520mm | 525mm | 530mm | 535mm | 540mm | 545mm | 550mm | 555mm | 565mm | 570mm | 580mm | 590mm | 600mm | 605mm | 610mm |
Head Tube Angle | 71deg | 70.5deg | 70.5deg | 71deg | 71.5deg | 71.5deg | 72deg | 72deg | 72deg | 72.5deg | 72.5deg | 72.5deg | 72.5deg | 72.5deg | 72.5deg | 72.5deg |
Seat Tube Angle | 74.5deg | 75.5deg | 75deg | 74.5deg | 74.5deg | 74deg | 74deg | 73.5deg | 73.5deg | 73.5deg | 73deg | 73deg | 73deg | 73deg | 73deg | 73deg |
Head Tube Length | 105mm | 100mm | 100mm | 105mm | 110mm | 115mm | 125mm | 135mm | 145mm | 155mm | 165mm | 175mm | 185mm | 195mm | 205mm | 215mm |
Bottom Bracket Drop | 87mm | 87mm | 87mm | 87mm | 87mm | 87mm | 87mm | 87mm | 87mm | 81mm | 81mm | 81mm | 76mm | 76mm | 76mm | 76mm |
Bottom Bracket Height | 264mm | 264mm | 264mm | 264mm | 264mm | 264mm | 264mm | 264mm | 264mm | 270mm | 270mm | 270mm | 275mm | 275mm | 275mm | 275mm |
Chainstay Length | 450mm | 450mm | 450mm | 450mm | 450mm | 450mm | 450mm | 450mm | 450mm | 450mm | 450mm | 450mm | 450mm | 450mm | 450mm | 450mm |
Chainstay Length Horizontal | 441.5mm | 441.5mm | 441.5mm | 441.5mm | 441.5mm | 441.5mm | 441.5mm | 441.5mm | 441.5mm | 442.7mm | 442.7mm | 442.7mm | 443.5mm | 443.5mm | 443.5mm | 443.5mm |
Front-Center | 586mm | 593.9mm | 593.9mm | 590.9mm | 591.9mm | 596.9mm | 593.9mm | 593.9mm | 598.8mm | 605.8mm | 610.8mm | 620.7mm | 631.1mm | 636mm | 641mm | 646.9mm |
Front-Center Horizontal | 579.5mm | 587.5mm | 587.5mm | 584.5mm | 585.5mm | 590.5mm | 587.5mm | 587.5mm | 592.5mm | 600.4mm | 605.4mm | 615.4mm | 626.5mm | 631.5mm | 636.5mm | 642.5mm |
Wheelbase | 1021mm | 1029mm | 1029mm | 1026mm | 1027mm | 1032mm | 1029mm | 1029mm | 1034mm | 1043mm | 1048mm | 1058mm | 1070mm | 1075mm | 1080mm | 1086mm |
Fork Offset/Rake | 45mm | 45mm | 45mm | 45mm | 45mm | 45mm | 45mm | 45mm | 45mm | 45mm | 45mm | 45mm | 45mm | 45mm | 45mm | 45mm |
Fork Length (Axle-To-Crown) | 400mm | 400mm | 400mm | 400mm | 400mm | 400mm | 400mm | 400mm | 400mm | 400mm | 400mm | 400mm | 400mm | 400mm | 400mm | 400mm |
Trail | 73.3mm high | 76.6mm high | 76.6mm high | 73.3mm high | 70mm high | 70mm high | 66.7mm high | 66.7mm high | 66.7mm high | 63.5mm mid/​neutral | 63.5mm mid/​neutral | 63.5mm mid/​neutral | 63.5mm mid/​neutral | 63.5mm mid/​neutral | 63.5mm mid/​neutral | 63.5mm mid/​neutral |
Mechanical Trail | 69.3mm | 72.2mm | 72.2mm | 69.3mm | 66.4mm | 66.4mm | 63.5mm | 63.5mm | 63.5mm | 60.6mm | 60.6mm | 60.6mm | 60.6mm | 60.6mm | 60.6mm | 60.6mm |
Wheel Flop | 22.6mm | 24.1mm | 24.1mm | 22.6mm | 21.1mm | 21.1mm | 19.6mm | 19.6mm | 19.6mm | 18.2mm | 18.2mm | 18.2mm | 18.2mm | 18.2mm | 18.2mm | 18.2mm |
Standover Height | 747mm | 736mm | 741mm | 753mm | 761mm | 767mm | 778mm | 787mm | 797mm | 810mm | 819mm | 828mm | 840mm | 850mm | 859mm | 876mm |
Tire to Pedal Spindle | 65mm 170 mm cranks | 72.9mm 170 mm cranks | 72.9mm 170 mm cranks | 69.9mm 170 mm cranks | 70.9mm 170 mm cranks | 75.9mm 170 mm cranks | 72.9mm 170 mm cranks | 72.9mm 170 mm cranks | 77.8mm 170 mm cranks | 84.8mm 170 mm cranks | 89.8mm 170 mm cranks | 99.7mm 170 mm cranks | 110.1mm 170 mm cranks | 115mm 170 mm cranks | 120mm 170 mm cranks | 125.9mm 170 mm cranks |
Pedal Spindle to Ground Clearance | 94mm 170 mm cranks | 94mm 170 mm cranks | 94mm 170 mm cranks | 94mm 170 mm cranks | 94mm 170 mm cranks | 94mm 170 mm cranks | 94mm 170 mm cranks | 94mm 170 mm cranks | 94mm 170 mm cranks | 100mm 170 mm cranks | 100mm 170 mm cranks | 100mm 170 mm cranks | 105mm 170 mm cranks | 105mm 170 mm cranks | 105mm 170 mm cranks | 105mm 170 mm cranks |
Rohloff Build
49 | 47 | 48 | 50 | 51 | 52 | 53 | 54 | 55 | 56 | 57 | 58 | 59 | 60 | 61 | 62 | |
Wheel Size | 700C/29 in 622 mm BSD | 700C/29 in 622 mm BSD | 700C/29 in 622 mm BSD | 700C/29 in 622 mm BSD | 700C/29 in 622 mm BSD | 700C/29 in 622 mm BSD | 700C/29 in 622 mm BSD | 700C/29 in 622 mm BSD | 700C/29 in 622 mm BSD | 700C/29 in 622 mm BSD | 700C/29 in 622 mm BSD | 700C/29 in 622 mm BSD | 700C/29 in 622 mm BSD | 700C/29 in 622 mm BSD | 700C/29 in 622 mm BSD | 700C/29 in 622 mm BSD |
Tire Width | 40mm | 40mm | 40mm | 40mm | 40mm | 40mm | 40mm | 40mm | 40mm | 40mm | 40mm | 40mm | 40mm | 40mm | 40mm | 40mm |
Tire Width Max | 50mm | 50mm | 50mm | 50mm | 50mm | 50mm | 50mm | 50mm | 50mm | 50mm | 50mm | 50mm | 50mm | 50mm | 50mm | 50mm |
Tire Outer Diameter | 702mm | 702mm | 702mm | 702mm | 702mm | 702mm | 702mm | 702mm | 702mm | 702mm | 702mm | 702mm | 702mm | 702mm | 702mm | 702mm |
Bike Length with Tires | 1723mm | 1731mm | 1731mm | 1728mm | 1729mm | 1734mm | 1731mm | 1731mm | 1736mm | 1745mm | 1750mm | 1760mm | 1772mm | 1777mm | 1782mm | 1788mm |
Stack and Reach vs. Category Trend
Very Upright
Somewhat Upright
Average
Somewhat Aggressive
Very Aggressive
The Bike Insights Upright/Aggressive scale is based on analysis of a bike’s proportions relative to similar sized bikes in the same category.
Learn more about the Upright/Aggressive ScaleCategory Trend
Sport TouringSource:https://www.ironbridge-bicycles.co.uk/bicycles/1779-handmade-full-fillet-frame/