2023 Principia Road Carbon Base
- Category
- Endurance Road
- Design
- Drop Bar, Rigid, non-suspension corrected
- Frame
- Carbon/Composite
- Fork
- Carbon/Composite
- Features
- Disc brake
Geometry
45CM | 48CM | 51CM | 54CM | 57CM | 60CM | |
Stack | 500.8mm | 500.8mm | 522.1mm | 557.2mm | 578.6mm | 607.3mm |
Reach | 380.8mm | 386.1mm | 385.3mm | 384.9mm | 388.1mm | 404.3mm |
Stack to Reach Ratio | 1.32:1 | 1.3:1 | 1.36:1 | 1.45:1 | 1.49:1 | 1.5:1 |
Seat Tube Length, Unknown | 450mm | 480mm | 510mm | 540mm | 570mm | 600mm |
Top Tube Length, Actual C-C | 515mm | 525mm | 540mm | 550mm | 565mm | 590mm |
Top Tube Slope | 7.6deg | 4.3deg | 3.6deg | 4.2deg | 3.5deg | 3.3deg |
Head Tube Angle | 72.5deg | 72.5deg | 72.5deg | 73deg | 73deg | 73deg |
Seat Tube Angle | 75deg | 74.5deg | 73.5deg | 73.5deg | 73deg | 73deg |
Head Tube Length | 95mm | 95mm | 120mm | 155mm | 180mm | 210mm |
Bottom Bracket Drop | 72.5mm | 72.5mm | 70mm | 70mm | 67.5mm | 67.5mm |
Bottom Bracket Height | 266.5mm | 266.5mm | 269mm | 269mm | 271.5mm | 271.5mm |
Chainstay Length | 408mm | 408mm | 408mm | 408mm | 410mm | 410mm |
Chainstay Length Horizontal | 401.5mm | 401.5mm | 402mm | 402mm | 404.4mm | 404.4mm |
Front-Center | 567.7mm | 572.9mm | 579.2mm | 585.2mm | 595.3mm | 620.2mm |
Front-Center Horizontal | 563.1mm | 568.3mm | 575mm | 581mm | 591.5mm | 616.5mm |
Wheelbase | 964.6mm | 969.8mm | 976.9mm | 982.9mm | 995.9mm | 1020.9mm |
Fork Offset/Rake | 45.1mm | 45mm | 44.9mm | 45mm | 45.1mm | 45.1mm |
Trail | 59.6mm mid/neutral | 59.7mm mid/neutral | 59.8mm mid/neutral | 56.5mm mid/neutral | 56.5mm mid/neutral | 56.5mm mid/neutral |
Mechanical Trail | 56.9mm | 57mm | 57mm | 54.1mm | 54mm | 54mm |
Wheel Flop | 17.1mm | 17.1mm | 17.2mm | 15.8mm | 15.8mm | 15.8mm |
Standover Height | 698.8mm | 718.7mm | 744.4mm | 774.8mm | 802.3mm | 830.4mm |
Tire to Pedal Spindle | 58.7mm 170 mm cranks | 63.9mm 170 mm cranks | 70.2mm 170 mm cranks | 76.2mm 170 mm cranks | 86.3mm 170 mm cranks | 111.2mm 170 mm cranks |
Pedal Spindle to Ground Clearance | 96.5mm 170 mm cranks | 96.5mm 170 mm cranks | 99mm 170 mm cranks | 99mm 170 mm cranks | 101.5mm 170 mm cranks | 101.5mm 170 mm cranks |
Base Build
45CM | 48CM | 51CM | 54CM | 57CM | 60CM | |
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 |
Tire Width | 28mm | 28mm | 28mm | 28mm | 28mm | 28mm |
Tire Outer Diameter | 678mm | 678mm | 678mm | 678mm | 678mm | 678mm |
Bike Length with Tires | 1642.6mm | 1647.8mm | 1654.9mm | 1660.9mm | 1673.9mm | 1698.9mm |
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
Endurance RoadSource:https://principia.dk/road/road-carbon/road-carbon-rd1---sort-pg-1534