2026 Sour Bicycles Purple Pie Pinion XL
Build
700C/29 in × 50 mm
Insights
Somewhat upright stack and reach vs trend of all-road/gravel bikes
Design deviates from other sizes of Sour Bicycles Purple Pie
Stack and Reach vs. Category Trend
View all sizes
Geometry
| Stack | 628.5mm |
| Reach | 383.8mm |
| Stack to Reach Ratio | 1.64:1 |
| Seat Tube Length, C-T | 570mm |
| Top Tube Length, Effective/Horizontal HT Top | 576mm |
| Top Tube Slope | 8.6deg |
| Head Tube Angle | 71.5deg |
| Seat Tube Angle | 73deg |
| Head Tube Length | 190mm |
| Bottom Bracket Drop | 70mm |
| Bottom Bracket Height | 291mm |
| Chainstay Length | 440mm |
| Chainstay Length Horizontal | 434.4mm |
| Front-Center | 621.6mm |
| Front-Center Horizontal | 617.6mm |
| Wheelbase | 1052mm |
| Fork Offset/Rake | 45mm |
| Fork Length (On-Axis) | 405mm |
| Trail | 73.3mm high |
| Mechanical Trail | 69.6mm |
| Wheel Flop | 22.1mm |
| Tire to Pedal Spindle Distance With 170 mm cranks | 90.6mm |
| Pedal Spindle to Ground Clearance With 170 mm cranks | 121mm |
Pinion Build
| Wheel Size | 700C, 29 inch (622mm BSD) |
| Tire Width | 50mm |
| Tire Outer Diameter | 722mm |
| Bike Length with Tires | 1774mm |
| Suspension Type | Rigid, non-suspension corrected |
| Bar Type | Drop Bar |
| Frame Material | Steel |
| Fork Material | Steel |
| Brake Type | Disc |
Source:https://sour.bike/bikes/gravel/purple-pie/