2026 Sour Bicycles Purple Haze Base S
Build
700C/29 in × 50 mm
Insights
Average 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 | 574.6mm |
| Reach | 380mm |
| Stack to Reach Ratio | 1.51:1 |
| Seat Tube Length, C-T | 480mm |
| Top Tube Length, Effective/Horizontal Unknown | 535mm |
| Top Tube Slope | 12.4deg |
| Head Tube Angle | 70.5deg |
| Seat Tube Angle | 74.5deg |
| Head Tube Length | 135mm |
| Bottom Bracket Drop | 72mm |
| Bottom Bracket Height | 289mm |
| Chainstay Length | 440mm |
| Chainstay Length Horizontal | 434.1mm |
| Front-Center | 614.2mm |
| Front-Center Horizontal | 609.9mm |
| Wheelbase | 1044mm |
| Fork Offset/Rake | 45mm |
| Fork Length (Axle-To-Crown) | 403mm |
| Trail | 80.1mm very high |
| Mechanical Trail | 75.5mm |
| Wheel Flop | 25.2mm |
| Tire to Pedal Spindle Distance With 172.5 mm cranks | 80.7mm |
| Pedal Spindle to Ground Clearance With 172.5 mm cranks | 116.5mm |
Base Build
| Wheel Size | 700C, 29 inch (622mm BSD) |
| Tire Width | 50mm |
| Tire Outer Diameter | 722mm |
| Bike Length with Tires | 1766mm |
| Crank Length | 172.5mm |
| Handlebar Width | 400mm |
| Stem Length | 90mm |
| Suspension Type | Rigid, non-suspension corrected |
| Bar Type | Drop Bar |
| Frame Material | Steel |
| Fork Material | Carbon/Composite |
| Brake Type | Disc |
Source:sour.bike