2023 Centurion Backfire Comp 50 EQ S (27.5)
Build
650B/27.5 in × 54 mm
Insights
Somewhat aggressive stack and reach vs trend of off-road touring bikes
Design deviates from other sizes of Centurion Backfire
Suspension sag unknown
Geometry may mis-represent actual riding geometry
Stack and Reach vs. Category Trend
View all sizes
Geometry
| Stack | 627mm |
| Reach | 408mm |
| Stack to Reach Ratio | 1.54:1 |
| Seat Tube Length, C-T | 430mm |
| Top Tube Length, Effective/Horizontal HT Top | 600mm |
| Top Tube Slope | 22deg |
| Head Tube Angle | 69deg |
| Seat Tube Angle | 73deg |
| Head Tube Length | 130mm |
| Bottom Bracket Drop | 45mm |
| Bottom Bracket Height | 301mm |
| Chainstay Length | 430mm |
| Chainstay Length Horizontal | 427.6mm |
| Front-Center | 677.9mm |
| Front-Center Horizontal | 676.4mm |
| Wheelbase | 1104mm |
| Fork Offset/Rake | 42mm |
| Fork Length (Axle-To-Crown) | 507mm |
| Trail | 87.8mm very high |
| Mechanical Trail | 82mm |
| Wheel Flop | 29.4mm |
| Standover Height | 775mm |
| Tire to Pedal Spindle Distance With 170 mm cranks | 161.9mm |
| Pedal Spindle to Ground Clearance With 170 mm cranks | 131mm |
Comp 50 EQ Build
| Wheel Size | 650B, 27.5 inch (584mm BSD) |
| Tire Width | 54mm |
| Tire Outer Diameter | 692mm |
| Bike Length with Tires | 1796mm |
| Suspension Type | Hardtail (Front suspension) |
| Bar Type | Flat Bar |
| Fork Travel | 100mm |
| Suspension Sag | Unknown |
| Frame Material | Aluminum |
| Fork Material | N/A |
| Brake Type | Disc |
Source:https://www.centurion.de/de-de/bike/982/backfire-comp-50-eq