Bike-on-Bike
Default Config
Default Config
Insights
Average stack and reach vs trend of progressive gravel bikes
Design deviates from other sizes of XDS X-LAB GT8
Somewhat upright stack and reach vs trend of progressive gravel bikes
Design deviates from other sizes of SPCYCLE G028
Geometry
Stack | 540mm | 555mm +15mm |
Reach | 379mm | 385mm +6mm |
Stack to Reach Ratio | 1.42:1 | 1.44:1 |
Seat Tube Length, C-T | 447mm | — |
Seat Tube Length, C-TTT | — | 445mm |
Top Tube Length, Effective/Horizontal HT Top | 525mm | — |
Top Tube Length, Effective/Horizontal Unknown | — | 533.6mm |
Top Tube Slope | 12.3deg | 11.9deg -0.4deg |
Head Tube Angle | 70deg | 71deg +1deg |
Seat Tube Angle | 75deg | 74deg -1deg |
Head Tube Length | 100mm | 115mm +15mm |
Bottom Bracket Drop | 80mm | 80mm +0mm |
Bottom Bracket Height | 276mm | 286mm +10mm |
Chainstay Length | 435mm | 435mm +0mm |
Chainstay Length Horizontal | 427.6mm | 427.6mm +0mm |
Front-Center | 610mm | 612mm +2mm |
Front-Center Horizontal | 604.4mm | 606.4mm +2mm |
Wheelbase | 1032mm | 1034mm +2mm |
Fork Offset/Rake | 54.5mm | 55mm +0.5mm |
Fork Length, Unknown | — | 405mm |
Trail | 71.6mm high | 67.9mm -3.7mm high |
Mechanical Trail | 67.3mm | 64.2mm -3.1mm |
Wheel Flop | 23mm | 20.9mm -2.1mm |
Standover Height | 730mm | — |
Tire to Pedal Spindle | 84mm 170 mm cranks | 76mm -8mm 170 mm cranks |
Pedal Spindle to Ground Clearance | 106mm 170 mm cranks | 116mm +10mm 170 mm cranks |
Build
Wheel Size | 700C/29 in 622 mm BSD | 700C/29 in 622 mm BSD |
Tire Width | 45mm | 55mm +10mm |
Tire Outer Diameter | 712mm | 732mm +20mm |
Bike Length with Tires | 1744mm | 1766mm +22mm |
| Suspension Type | Rigid, non-suspension corrected | Rigid, non-suspension corrected |
| Bar Type | Drop Bar | Drop Bar |
| Frame Material | Carbon/Composite | Carbon/Composite |
| Fork Material | Carbon/Composite | Carbon/Composite |
| Brake Type | Disc | Disc |
Meta
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| Source | https://xds.co/en-us/products/gt8#product-geometry | https://velo.gravelo.ru/2026/04/22/spcycle-g028/ |
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