2026 Pipedream Cycles Sirius S6 CrMo XL
Build
700C/29 in × 2.5 in
Insights
Somewhat aggressive stack and reach vs trend of hardtail cross-country mtb bikes
Design deviates from other sizes of Pipedream Cycles Sirius S6
Suspension sag unknown
Geometry may mis-represent actual riding geometry
Stack and Reach vs. Category Trend
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Geometry
| Stack | 635mm |
| Reach | 500mm |
| Stack to Reach Ratio | 1.27:1 |
| Seat Tube Length, Unknown | 490mm |
| Top Tube Length, Effective/Horizontal Center | 663mm |
| Top Tube Slope | 14.5deg |
| Head Tube Angle | 66deg |
| Seat Tube Angle | 75deg |
| Bottom Bracket Drop | 65mm |
| Bottom Bracket Height | 309.5mm |
| Chainstay Length | 427mm |
| Chainstay Length Horizontal | 422mm |
| Front-Center | 798.6mm |
| Front-Center Horizontal | 796mm |
| Wheelbase | 1218mm |
| Fork Offset/Rake | 38.6mm |
| Trail | 124.5mm very high |
| Mechanical Trail | 113.8mm |
| Wheel Flop | 46.3mm |
| Standover Height | 758mm |
| Tire to Pedal Spindle Distance With 170 mm cranks | 254.1mm |
| Pedal Spindle to Ground Clearance With 170 mm cranks | 139.5mm |
CrMo Build
| Wheel Size | 700C, 29 inch (622mm BSD) |
| Tire Width | 2.5in |
| Tire Outer Diameter | 749mm |
| Bike Length with Tires | 1967mm |
| Suspension Type | Hardtail (Front suspension) |
| Bar Type | Flat Bar |
| Fork Travel | 120mm |
| Suspension Sag | Unknown |
| Frame Material | Steel |
| Fork Material | Unknown |
| Brake Type | Disc |
Source:www.pipedreamcycles.com