2022 De Rosa Merak Base
- Category
- Performance Road
- Design
- Drop Bar, Rigid, non-suspension corrected
Average stack and reachvs category | Average stack and reachvs category | Average stack and reachvs category | Average stack and reachvs category | Somewhat aggressive stack and reachvs category | Somewhat aggressive stack and reachvs category | Somewhat aggressive stack and reachvs category | Somewhat aggressive stack and reachvs category |
Geometry
43 | 46 | 48 | 50 | 52 | 54 | 56 | 58 | |
Stack | 500mm | 513mm | 524mm | 537mm | 548mm | 561mm | 574mm | 591mm |
Reach | 371mm | 376mm | 380mm | 385mm | 393mm | 399mm | 406mm | 409mm |
Stack to Reach Ratio | 1.35:1 | 1.36:1 | 1.38:1 | 1.39:1 | 1.39:1 | 1.41:1 | 1.41:1 | 1.44:1 |
Seat Tube Length, C-T | 430mm | 460mm | 480mm | 500mm | 520mm | 540mm | 560mm | 580mm |
Top Tube Length, Effective/Horizontal HT Top | 508mm | 518mm | 529mm | 540mm | 551mm | 563mm | 576mm | 589mm |
Top Tube Slope | 10deg | 8deg | 6.9deg | 6.2deg | 5.1deg | 4.5deg | 3.8deg | 3.6deg |
Head Tube Angle | 72deg | 72deg | 72deg | 72deg | 72deg | 72deg | 72deg | 72deg |
Seat Tube Angle | 75deg | 74.45deg | 74.15deg | 74deg | 74deg | 73.45deg | 73.3deg | 73deg |
Head Tube Length | 105mm | 115mm | 125mm | 136mm | 147mm | 159mm | 173mm | 19mm |
Bottom Bracket Drop | 71mm | 71mm | 71mm | 71mm | 71mm | 71mm | 71mm | 71mm |
Bottom Bracket Height | 268mm | 268mm | 268mm | 268mm | 268mm | 268mm | 268mm | 268mm |
Chainstay Length | 405mm | 405mm | 406mm | 406mm | 407mm | 407mm | 410mm | 410mm |
Chainstay Length Horizontal | 398.7mm | 398.7mm | 399.7mm | 399.7mm | 400.8mm | 400.8mm | 403.8mm | 403.8mm |
Front-Center | 576mm | 577mm | 579mm | 583mm | 590mm | 599mm | 608mm | 615mm |
Front-Center Horizontal | 571.6mm | 572.6mm | 574.6mm | 578.7mm | 585.7mm | 594.8mm | 603.8mm | 610.9mm |
Wheelbase | 970.3mm | 971.3mm | 974.4mm | 978.4mm | 986.5mm | 995.5mm | 1007.7mm | 1014.7mm |
Fork Offset/Rake | 58.2mm | 50.4mm | 45.1mm | 40.2mm | 35.9mm | 34.8mm | 32.7mm | 31.3mm |
Trail | 48.9mm mid/​neutral | 57.2mm mid/​neutral | 62.7mm mid/​neutral | 67.9mm high | 72.4mm high | 73.6mm high | 75.7mm high | 77.2mm high |
Mechanical Trail | 46.5mm | 54.4mm | 59.6mm | 64.6mm | 68.9mm | 70mm | 72mm | 73.4mm |
Wheel Flop | 14.4mm | 16.8mm | 18.4mm | 20mm | 21.3mm | 21.6mm | 22.3mm | 22.7mm |
Tire to Pedal Spindle | 67mm 170 mm cranks | 68mm 170 mm cranks | 70mm 170 mm cranks | 74mm 170 mm cranks | 81mm 170 mm cranks | 90mm 170 mm cranks | 99mm 170 mm cranks | 106mm 170 mm cranks |
Pedal Spindle to Ground Clearance | 98mm 170 mm cranks | 98mm 170 mm cranks | 98mm 170 mm cranks | 98mm 170 mm cranks | 98mm 170 mm cranks | 98mm 170 mm cranks | 98mm 170 mm cranks | 98mm 170 mm cranks |
Base Build
43 | 46 | 48 | 50 | 52 | 54 | 56 | 58 | |
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 |
Tire Width | 28mm | 28mm | 28mm | 28mm | 28mm | 28mm | 28mm | 28mm |
Tire Outer Diameter | 678mm | 678mm | 678mm | 678mm | 678mm | 678mm | 678mm | 678mm |
Bike Length with Tires | 1648.3mm | 1649.3mm | 1652.4mm | 1656.4mm | 1664.5mm | 1673.5mm | 1685.7mm | 1692.7mm |
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://derosa.it/model/merak/