2025 Sour Bicycles Purple Haze Base M
Build
700C/29 in × 55 mm
Insights
Somewhat upright stack and reach vs trend of all-road/gravel bikes
Design deviates from other sizes of Sour Bicycles Purple Haze
Stack and Reach vs. Category Trend
View all sizes
Geometry
| Stack | 583.9mm |
| Reach | 377.6mm |
| Stack to Reach Ratio | 1.55:1 |
| Seat Tube Length, Unknown | 510mm |
| Top Tube Length, Effective/Horizontal Unknown | 545mm |
| Top Tube Slope | 10.3deg |
| Head Tube Angle | 70.5deg |
| Seat Tube Angle | 74deg |
| Head Tube Length | 145mm |
| Bottom Bracket Drop | 72mm |
| Bottom Bracket Height | 294mm |
| Chainstay Length | 440mm |
| Chainstay Length Horizontal | 434.1mm |
| Front-Center | 610.2mm |
| Front-Center Horizontal | 605.9mm |
| Wheelbase | 1040mm |
| Fork Offset/Rake | 45mm |
| Fork Length (Axle-To-Crown) | 405mm |
| Trail | 81.9mm very high |
| Mechanical Trail | 77.2mm |
| Wheel Flop | 25.8mm |
| Tire to Pedal Spindle Distance With 170 mm cranks | 74.2mm |
| Pedal Spindle to Ground Clearance With 170 mm cranks | 124mm |
Base Build
| Wheel Size | 700C, 29 inch (622mm BSD) |
| Tire Width | 55mm |
| Tire Outer Diameter | 732mm |
| Bike Length with Tires | 1772mm |
| Suspension Type | Rigid, non-suspension corrected |
| Bar Type | Drop Bar |
| Frame Material | Steel |
| Fork Material | Carbon/Composite |
| Brake Type | Disc |
Source:https://sour.bike/bikes/gravel/purple-haze/