2026 Yoleo Altera G21 Base
- Category
- Progressive Gravel
- 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 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 | Very upright stack and reachvs category | Very upright stack and reachvs category | Very upright stack and reachvs category | Very upright stack and reachvs category |
Geometry
SEAT TUBE LENGTH(mm) | 450 | 450 | 490 | 490 | 520 | 520 | 540 | 540 | 560 | 560 | 580 | 580 | 610 | 610 | |
Stack | — | 512mm | 512mm | 531mm | 531mm | 549mm | 549mm | 566mm | 566mm | 586mm | 586mm | 611mm | 611mm | 640mm | 640mm |
Reach | — | 373mm | 373mm | 373mm | 373mm | 379mm | 379mm | 383mm | 383mm | 387mm | 387mm | 390mm | 390mm | 396mm | 396mm |
Stack to Reach Ratio | — | 1.37:1 | 1.37:1 | 1.42:1 | 1.42:1 | 1.45:1 | 1.45:1 | 1.48:1 | 1.48:1 | 1.51:1 | 1.51:1 | 1.57:1 | 1.57:1 | 1.62:1 | 1.62:1 |
Seat Tube Length, Unknown | — | — | 450mm | — | 490mm | — | 520mm | — | 540mm | — | 560mm | — | 580mm | — | 610mm |
Top Tube Length, Effective/Horizontal Unknown | — | 510mm | 510mm | 515mm | 515mm | 536.4mm | 536.4mm | 551mm | 551mm | 566mm | 566mm | 577mm | 577mm | 592mm | 592mm |
Top Tube Slope | — | — | 9deg | — | 6.6deg | — | 5.4deg | — | 5.1deg | — | 5.2deg | — | 5.8deg | — | 5.6deg |
Head Tube Angle | — | 69deg | 69deg | 69.5deg | 69.5deg | 70deg | 70deg | 70deg | 70deg | 72.2deg | 72.2deg | 72.3deg | 72.3deg | 72.6deg | 72.6deg |
Seat Tube Angle | — | 75deg | 75deg | 75deg | 75deg | 74deg | 74deg | 73.5deg | 73.5deg | 73deg | 73deg | 73deg | 73deg | 73deg | 73deg |
Head Tube Length | — | 79mm | 79mm | 98.5mm | 98.5mm | 107mm | 107mm | 134mm | 134mm | 145mm | 145mm | 171mm | 171mm | 200mm | 200mm |
Bottom Bracket Drop | — | 79mm | 79mm | 79mm | 79mm | 79mm | 79mm | 79mm | 79mm | 79mm | 79mm | 79mm | 79mm | 79mm | 79mm |
Bottom Bracket Height | — | 277mm | 277mm | 277mm | 277mm | 277mm | 277mm | 277mm | 277mm | 277mm | 277mm | 277mm | 277mm | 277mm | 277mm |
Chainstay Length | — | 433mm | 433mm | 433mm | 433mm | 433mm | 433mm | 433mm | 433mm | 433mm | 433mm | 433mm | 433mm | 433mm | 433mm |
Chainstay Length Horizontal | — | 425.7mm | 425.7mm | 425.7mm | 425.7mm | 425.7mm | 425.7mm | 425.7mm | 425.7mm | 425.7mm | 425.7mm | 425.7mm | 425.7mm | 425.7mm | 425.7mm |
Front-Center | — | 594.8mm | 594.8mm | 597.4mm | 597.4mm | 605.3mm | 605.3mm | 615.4mm | 615.4mm | 604.3mm | 604.3mm | 614.2mm | 614.2mm | 626.1mm | 626.1mm |
Front-Center Horizontal | — | 589.6mm | 589.6mm | 592.2mm | 592.2mm | 600.1mm | 600.1mm | 610.3mm | 610.3mm | 599.1mm | 599.1mm | 609.1mm | 609.1mm | 621.1mm | 621.1mm |
Wheelbase | — | 1015.3mm | 1015.3mm | 1017.9mm | 1017.9mm | 1025.8mm | 1025.8mm | 1036mm | 1036mm | 1024.9mm | 1024.9mm | 1034.9mm | 1034.9mm | 1046.8mm | 1046.8mm |
Fork Offset/Rake | — | 47mm | 47mm | 47mm | 47mm | 47mm | 47mm | 47mm | 47mm | 47mm | 47mm | 47mm | 47mm | 47mm | 47mm |
Fork Length, Unknown | — | 401.5mm | 401.5mm | 401.5mm | 401.5mm | 401.5mm | 401.5mm | 401.5mm | 401.5mm | 401.5mm | 401.5mm | 401.5mm | 401.5mm | 401.5mm | 401.5mm |
Trail | — — | 86.3mm very high | 86.3mm very high | 82.9mm very high | 82.9mm very high | 79.6mm high | 79.6mm high | 79.6mm high | 79.6mm high | 64.9mm mid/​neutral | 64.9mm mid/​neutral | 64.3mm mid/​neutral | 64.3mm mid/​neutral | 62.3mm mid/​neutral | 62.3mm mid/​neutral |
Mechanical Trail | — | 80.6mm | 80.6mm | 77.7mm | 77.7mm | 74.8mm | 74.8mm | 74.8mm | 74.8mm | 61.8mm | 61.8mm | 61.2mm | 61.2mm | 59.5mm | 59.5mm |
Wheel Flop | — | 28.9mm | 28.9mm | 27.2mm | 27.2mm | 25.6mm | 25.6mm | 25.6mm | 25.6mm | 18.9mm | 18.9mm | 18.6mm | 18.6mm | 17.8mm | 17.8mm |
Tire to Pedal Spindle | — 170 mm cranks | 68.8mm 170 mm cranks | 68.8mm 170 mm cranks | 71.4mm 170 mm cranks | 71.4mm 170 mm cranks | 79.3mm 170 mm cranks | 79.3mm 170 mm cranks | 89.4mm 170 mm cranks | 89.4mm 170 mm cranks | 78.3mm 170 mm cranks | 78.3mm 170 mm cranks | 88.2mm 170 mm cranks | 88.2mm 170 mm cranks | 100.1mm 170 mm cranks | 100.1mm 170 mm cranks |
Pedal Spindle to Ground Clearance | — 170 mm cranks | 107mm 170 mm cranks | 107mm 170 mm cranks | 107mm 170 mm cranks | 107mm 170 mm cranks | 107mm 170 mm cranks | 107mm 170 mm cranks | 107mm 170 mm cranks | 107mm 170 mm cranks | 107mm 170 mm cranks | 107mm 170 mm cranks | 107mm 170 mm cranks | 107mm 170 mm cranks | 107mm 170 mm cranks | 107mm 170 mm cranks |
Base Build
SEAT TUBE LENGTH(mm) | 450 | 450 | 490 | 490 | 520 | 520 | 540 | 540 | 560 | 560 | 580 | 580 | 610 | 610 | |
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 |
Tire Width | 45mm | 45mm | 45mm | 45mm | 45mm | 45mm | 45mm | 45mm | 45mm | 45mm | 45mm | 45mm | 45mm | 45mm | 45mm |
Tire Width Max | 53mm | 53mm | 53mm | 53mm | 53mm | 53mm | 53mm | 53mm | 53mm | 53mm | 53mm | 53mm | 53mm | 53mm | 53mm |
Tire Outer Diameter | 712mm | 712mm | 712mm | 712mm | 712mm | 712mm | 712mm | 712mm | 712mm | 712mm | 712mm | 712mm | 712mm | 712mm | 712mm |
Bike Length with Tires | — | 1727.3mm | 1727.3mm | 1729.9mm | 1729.9mm | 1737.8mm | 1737.8mm | 1748mm | 1748mm | 1736.9mm | 1736.9mm | 1746.9mm | 1746.9mm | 1758.8mm | 1758.8mm |
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
Progressive GravelSource:www.yoeleobike.com