2021 Rockrider xc 900 Carbon GX Eagle Lunar 1x12 xl
Build
700C/29 in × 2.3 mm
Insights
Average stack and reach vs trend of hardtail cross-country mtb bikes
Design deviates from other sizes of Rockrider xc 900
Suspension sag unknown
Geometry may mis-represent actual riding geometry
Stack and Reach vs. Category Trend
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Geometry
| Stack | 623.4mm |
| Reach | 438mm |
| Stack to Reach Ratio | 1.42:1 |
| Seat Tube Length, C-T | 496mm |
| Top Tube Length, Effective/Horizontal Center | 644.8mm |
| Top Tube Slope | 14.4deg |
| Head Tube Angle | 68.1deg |
| Seat Tube Angle | 71.6deg |
| Head Tube Length | 135mm |
| Bottom Bracket Drop | 42.6mm |
| Bottom Bracket Height | 270.7mm |
| Chainstay Length | 438.2mm |
| Chainstay Length Horizontal | 436.1mm |
| Front-Center | 723.9mm |
| Front-Center Horizontal | 722.7mm |
| Wheelbase | 1158.8mm |
| Fork Offset/Rake | 48mm |
| Trail | 74.2mm high |
| Mechanical Trail | 68.9mm |
| Wheel Flop | 25.7mm |
| Tire to Pedal Spindle Distance With 170 mm cranks | 240.6mm |
| Pedal Spindle to Ground Clearance With 170 mm cranks | 100.7mm |
Carbon GX Eagle Lunar 1x12 Build
| Wheel Size | 700C, 29 inch (622mm BSD) |
| Tire Width | 2.3mm |
| Tire Outer Diameter | 626.6mm |
| Bike Length with Tires | 1785.4mm |
| Suspension Type | Hardtail (Front suspension) |
| Bar Type | Flat Bar |
| Fork Travel | 100mm |
| Suspension Sag | Unknown |
| Frame Material | Carbon/Composite |
| Fork Material | Unknown |
| Brake Type | Disc |
Source:https://geometrygeeks.bike/bike/b-twin-rockrider-xc-900-2021/