2004 Principia Evolution Base
- Category
- Performance Road
- Design
- Drop Bar, Rigid, non-suspension corrected
- Frame
- Aluminum
- Fork
- Carbon/Composite
- Features
- Rim brake
Average stack and reachvs category |
Geometry
57cm (M/L) | 46cm (XS) | 49cm (XS/S) | 51cm (S) | 53cm (S/M) | 55cm (M) | 59cm (L) | 61cm (L/XL) | 63cm (XL) | 65 (G) | |
Stack | 575mm | — | — | — | — | — | — | — | — | — |
Reach | 395mm | — | — | — | — | — | — | — | — | — |
Stack to Reach Ratio | 1.46:1 | — | — | — | — | — | — | — | — | — |
Seat Tube Length, C-T | 565mm | 460mm | 460mm | 480mm | 510mm | 540mm | 590mm | 610mm | 630mm | 650mm |
Top Tube Length, Effective/Horizontal Center | 566mm | 500mm | 515mm | 530mm | 542mm | 554mm | 578mm | 590mm | 602mm | 614mm |
Top Tube Slope | 3.4deg | — | — | — | — | — | — | — | — | — |
Head Tube Angle | 73deg | 72deg | 72deg | 72.5deg | 73deg | 73deg | 73.5deg | 73.5deg | 74deg | 74deg |
Seat Tube Angle | 73.5deg | 74deg | 75.5deg | 74.4deg | 74deg | 74deg | 73.5deg | 73deg | 72.5deg | 72deg |
Head Tube Length | 152mm | 96mm | 96mm | 96mm | 113mm | 133mm | 170mm | 190mm | 208mm | 220mm |
Bottom Bracket Drop | 70mm | 35mm | 70mm | 70mm | 70mm | 70mm | 70mm | 69mm | 68mm | 68mm |
Bottom Bracket Height | 264mm | 280mm | 264mm | 264mm | 264mm | 264mm | 264mm | 265mm | 266mm | 266mm |
Chainstay Length | 405mm | — | — | — | — | — | — | — | — | — |
Chainstay Length Horizontal | 398.9mm | — | — | — | — | — | — | — | — | — |
Front-Center | 599.2mm | — | — | — | — | — | — | — | — | — |
Front-Center Horizontal | 598mm | 558mm | 570mm | 574mm | 579mm | 591mm | 606mm | 612mm | 619mm | 626mm |
Wheelbase | 994mm | 946mm | 966mm | 970mm | 975mm | 987mm | 1001mm | 1008mm | 1019mm | 1026mm |
Fork Offset/Rake | 46.5mm | — | — | — | — | — | — | — | — | — |
Trail | 53.5mm mid/​neutral | — — | — — | — — | — — | — — | — — | — — | — — | — — |
Mechanical Trail | 51.2mm | — | — | — | — | — | — | — | — | — |
Wheel Flop | 15mm | — | — | — | — | — | — | — | — | — |
Standover Height | 799mm | 701mm | 725mm | 735mm | 758mm | 782mm | 824mm | 854mm | 865mm | 892mm |
Tire to Pedal Spindle | 95.2mm 170 mm cranks | — 170 mm cranks | — 170 mm cranks | — 170 mm cranks | — 170 mm cranks | — 170 mm cranks | — 170 mm cranks | — 170 mm cranks | — 170 mm cranks | — 170 mm cranks |
Pedal Spindle to Ground Clearance | 94mm 170 mm cranks | 110mm 170 mm cranks | 94mm 170 mm cranks | 94mm 170 mm cranks | 94mm 170 mm cranks | 94mm 170 mm cranks | 94mm 170 mm cranks | 95mm 170 mm cranks | 96mm 170 mm cranks | 96mm 170 mm cranks |
Base Build
57cm (M/L) | 46cm (XS) | 49cm (XS/S) | 51cm (S) | 53cm (S/M) | 55cm (M) | 59cm (L) | 61cm (L/XL) | 63cm (XL) | 65 (G) | |
Wheel Size | 700C/29 in 622 mm BSD | 650B/27.5 in 584 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 | 23mm | 23mm | 23mm | 23mm | 23mm | 23mm | 23mm | 23mm | 23mm | 23mm |
Tire Outer Diameter | 668mm | 630mm | 668mm | 668mm | 668mm | 668mm | 668mm | 668mm | 668mm | 668mm |
Bike Length with Tires | 1662mm | 1576mm | 1634mm | 1638mm | 1643mm | 1655mm | 1669mm | 1676mm | 1687mm | 1694mm |
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
Performance RoadSource:https://lfgss.microco.sm/api/v1/files/5703cb541b2e40fb46c13009c31f811ed8ec0025.pdf