2025 Rockrider E-ST 100 M
Build
650B/27.5 in × 2.2 in
Insights
Average stack and reach vs trend of hardtail cross-country mtb bikes
Suspension sag unknown
Geometry may mis-represent actual riding geometry
Stack and Reach vs. Category Trend
View all sizes
Geometry
| Stack | 596mm |
| Reach | 403mm |
| Stack to Reach Ratio | 1.48:1 |
| Seat Tube Length, Unknown | 436mm |
| Top Tube Length, Effective/Horizontal Unknown | 585mm |
| Head Tube Angle | 68deg |
| Effective Seat Tube Angle, Unknown | 73deg |
| Head Tube Length | 130mm |
| Bottom Bracket Drop | 15mm |
| Bottom Bracket Height | 332.9mm |
| Chainstay Length Horizontal | 432mm |
| Front-Center | 683.2mm |
| Front-Center Horizontal | 683mm |
| Wheelbase | 1115mm |
| Fork Offset/Rake | 42mm |
| Fork Length, Unknown | 510mm |
| Trail | 95.3mm very high |
| Mechanical Trail | 88.3mm |
| Wheel Flop | 33.1mm |
| Tire to Pedal Spindle Distance With 170 mm cranks | 165.3mm |
| Pedal Spindle to Ground Clearance With 170 mm cranks | 162.9mm |
100 Build
| Wheel Size | 650B, 27.5 inch (584mm BSD) |
| Tire Width | 2.2in |
| Tire Outer Diameter | 695.8mm |
| Bike Length with Tires | 1810.8mm |
| Handlebar Width | 720mm |
| Stem Length | 80mm |
| Suspension Type | Hardtail (Front suspension) |
| Bar Type | Flat Bar |
| Fork Travel | 100mm |
| Suspension Sag | Unknown |
| Frame Material | Aluminum |
| Fork Material | Unknown |
| Brake Type | Disc |
| Features | E-bike |
Published Sizing Recommendations
| Height | 165 cm to 174 cm |
Source:https://www.decathlon.ee/p/337499-53290-275-hardtail-tuupi-elektriline-maastikujalgratas-e-st-100-valge-punane.html