2026 XDS X-LAB AD8 Base
- Category
- Performance Road
- Design
- Drop Bar, Rigid, non-suspension corrected
- Frame
- Carbon/Composite
- Fork
- Carbon/Composite
- Features
- Disc brake
Geometry
XS | S | M | L | XL | |
Stack | 505mm | 520mm | 534mm | 553mm | 575mm |
Reach | 371mm | 379mm | 387mm | 395mm | 405mm |
Stack to Reach Ratio | 1.36:1 | 1.37:1 | 1.38:1 | 1.4:1 | 1.42:1 |
Seat Tube Length, C-T | 470mm | 495mm | 515mm | 540mm | 565mm |
Top Tube Length, Actual C-C | 504mm | 523mm | 540mm | 559mm | 579mm |
Top Tube Slope | 5.9deg | 4.7deg | 4.2deg | 3.6deg | 3.5deg |
Head Tube Angle | 71deg | 72deg | 73deg | 73deg | 73deg |
Seat Tube Angle | 75deg | 75deg | 74deg | 74deg | 73deg |
Head Tube Length | 105mm | 118mm | 130mm | 148mm | 171mm |
Bottom Bracket Drop | 72mm | 72mm | 70mm | 70mm | 70mm |
Bottom Bracket Height | 267mm | 267mm | 269mm | 269mm | 269mm |
Chainstay Length | 410mm | 410mm | 410mm | 410mm | 410mm |
Chainstay Length Horizontal | 403.6mm | 403.6mm | 404mm | 404mm | 404mm |
Front-Center | 575mm | 582mm | 583mm | 592mm | 607mm |
Front-Center Horizontal | 566.4mm | 574.4mm | 578mm | 588mm | 603mm |
Wheelbase | 970mm | 978mm | 982mm | 992mm | 1007mm |
Fork Offset/Rake | 48mm | 48mm | 43mm | 43mm | 43mm |
Trail | 66mm high | 59.7mm mid/neutral | 58.7mm mid/neutral | 58.7mm mid/neutral | 58.7mm mid/neutral |
Mechanical Trail | 62.4mm | 56.8mm | 56.1mm | 56.1mm | 56.1mm |
Wheel Flop | 20.3mm | 17.5mm | 16.4mm | 16.4mm | 16.4mm |
Standover Height | 753mm | 774mm | 792mm | 811mm | 834mm |
Tire to Pedal Spindle | 76mm 160 mm cranks | 83mm 160 mm cranks | 79mm 165 mm cranks | 88mm 165 mm cranks | 98mm 170 mm cranks |
Pedal Spindle to Ground Clearance | 107mm 160 mm cranks | 107mm 160 mm cranks | 104mm 165 mm cranks | 104mm 165 mm cranks | 99mm 170 mm cranks |
Base Build
XS | S | M | L | XL | |
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 |
Tire Width | 28mm | 28mm | 28mm | 28mm | 28mm |
Tire Outer Diameter | 678mm | 678mm | 678mm | 678mm | 678mm |
Bike Length with Tires | 1648mm | 1656mm | 1660mm | 1670mm | 1685mm |
Crank Length | 160mm | 160mm | 165mm | 165mm | 170mm |
Handlebar Width | 360mm | 360mm | 380mm | 380mm | 400mm |
Stem Length | 90mm | 90mm | 100mm | 100mm | 120mm |
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://xds.co/products/ad8#product-geometry