2023 Principia Gravel 40 Base
- Category
- All-road/Gravel
- Design
- Drop Bar, Rigid, non-suspension corrected
- Frame
- Aluminum
- Fork
- Carbon/Composite
- Features
- Disc brake
Geometry
51cm | 48cm | 54cm | 56cm | 58cm | 61cm | |
Stack | 531.9mm | 531.9mm | 554.6mm | 577mm | 598.4mm | 617.4mm |
Reach | 373.5mm | 373.5mm | 378mm | 384mm | 392.7mm | 401.6mm |
Stack to Reach Ratio | 1.42:1 | 1.42:1 | 1.47:1 | 1.5:1 | 1.52:1 | 1.54:1 |
Seat Tube Length, Unknown | 490mm | 460mm | 520mm | 540mm | 560mm | 590mm |
Top Tube Length, Actual C-C | 526mm | 526mm | 537mm | 555mm | 570mm | 584.5mm |
Top Tube Slope | 6.8deg | 10.2deg | 6deg | 6.3deg | 6.4deg | 5.2deg |
Head Tube Angle | 69.5deg | 69.5deg | 70.5deg | 71.5deg | 71.5deg | 72deg |
Seat Tube Angle | 74deg | 74deg | 74deg | 73.5deg | 73.5deg | 73.5deg |
Head Tube Length | 115mm | 115mm | 135mm | 155mm | 175mm | 195mm |
Bottom Bracket Drop | 67mm | 67mm | 67mm | 67mm | 67mm | 67mm |
Bottom Bracket Height | 282mm | 282mm | 282mm | 282mm | 282mm | 282mm |
Chainstay Length | 445mm | 445mm | 445mm | 445mm | 445mm | 445mm |
Chainstay Length Horizontal | 439.9mm | 439.9mm | 439.9mm | 439.9mm | 439.9mm | 439.9mm |
Front-Center | 604.4mm | 604.4mm | 607.4mm | 611.2mm | 621.6mm | 636.6mm |
Front-Center Horizontal | 600.7mm | 600.7mm | 603.7mm | 607.5mm | 618mm | 633mm |
Wheelbase | 1040.6mm | 1040.6mm | 1043.6mm | 1047.4mm | 1057.9mm | 1073mm |
Fork Offset/Rake | 50mm | 50mm | 50mm | 50.1mm | 45mm | 50mm |
Trail | 77.1mm high | 77.1mm high | 70.5mm high | 64mm mid/neutral | 69.3mm high | 60.8mm mid/neutral |
Mechanical Trail | 72.2mm | 72.2mm | 66.5mm | 60.7mm | 65.8mm | 57.9mm |
Wheel Flop | 25.3mm | 25.3mm | 22.2mm | 19.2mm | 20.9mm | 17.9mm |
Standover Height | 748mm | 725mm | 776mm | 796mm | 816mm | 843mm |
Tire to Pedal Spindle | 85.4mm 170 mm cranks | 85.4mm 170 mm cranks | 88.4mm 170 mm cranks | 92.2mm 170 mm cranks | 102.6mm 170 mm cranks | 117.6mm 170 mm cranks |
Pedal Spindle to Ground Clearance | 112mm 170 mm cranks | 112mm 170 mm cranks | 112mm 170 mm cranks | 112mm 170 mm cranks | 112mm 170 mm cranks | 112mm 170 mm cranks |
Base Build
51cm | 48cm | 54cm | 56cm | 58cm | 61cm | |
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 | 38mm | 38mm | 38mm | 38mm | 38mm | 38mm |
Tire Outer Diameter | 698mm | 698mm | 698mm | 698mm | 698mm | 698mm |
Bike Length with Tires | 1738.6mm | 1738.6mm | 1741.6mm | 1745.4mm | 1755.9mm | 1771mm |
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
All-road/GravelSource:https://principia.dk/gravel/gravel-alu/gravel-40---sand-pg-2124