2025 ULT.RA Kross Esker 5.0 Base S (18") 28"
Build
700C/29 in × 45 mm
Insights
Average stack and reach vs trend of all-road/gravel bikes
Stack and Reach vs. Category Trend
View all sizes
Geometry
| Stack | 572mm |
| Reach | 376mm |
| Stack to Reach Ratio | 1.52:1 |
| Seat Tube Length, C-T | 460mm |
| Top Tube Length, Effective/Horizontal Center | 545mm |
| Top Tube Slope | 14.5deg |
| Head Tube Angle | 71deg |
| Seat Tube Angle | 74deg |
| Head Tube Length | 120mm |
| Bottom Bracket Drop | 75mm |
| Bottom Bracket Height | 281mm |
| Chainstay Length | 430mm |
| Chainstay Length Horizontal | 423.4mm |
| Front-Center | 609.2mm |
| Front-Center Horizontal | 604.6mm |
| Wheelbase | 1028mm |
| Fork Offset/Rake | 54.3mm |
| Trail | 65.1mm high |
| Mechanical Trail | 61.6mm |
| Wheel Flop | 20.1mm |
| Tire to Pedal Spindle Distance With 170 mm cranks | 83.2mm |
| Pedal Spindle to Ground Clearance With 170 mm cranks | 111mm |
Base Build
| Wheel Size | 700C, 29 inch (622mm BSD) |
| Tire Width | 45mm |
| Tire Outer Diameter | 712mm |
| Bike Length with Tires | 1740mm |
| Crank Length | 170mm |
| Handlebar Width | 400mm |
| Stem Length | 60mm |
| Stem Angle | 12deg |
| Suspension Type | Rigid, non-suspension corrected |
| Bar Type | Drop Bar |
| Frame Material | Aluminum |
| Fork Material | Carbon/Composite |
| Brake Type | Disc |
Published Sizing Recommendations
| Height | 168 cm to 174 cm |
Source:https://kross.pl/esker-5-0-ult-ra-perlowy-holo-polysk