2024 Crumbworks Chunk Base M (50cm)
Build
650B/27.5 in × 2.8 in
Insights
Design deviates from other sizes of Crumbworks Chunk
Stack and Reach vs. Category Trend
View all sizes
Geometry
| Stack | 617.4mm |
| Reach | 399.3mm |
| Stack to Reach Ratio | 1.55:1 |
| Seat Tube Length, C-T | 500mm |
| Top Tube Length, Effective/Horizontal Center | 620mm |
| Head Tube Angle | 69deg |
| Seat Tube Angle | 71deg |
| Head Tube Length | 200mm |
| Bottom Bracket Drop | 50mm |
| Bottom Bracket Height | 313.1mm |
| Chainstay Length | 470mm |
| Chainstay Length Horizontal | 467.3mm |
| Front-Center | 672.5mm |
| Front-Center Horizontal | 670.7mm |
| Wheelbase | 1138mm |
| Fork Offset/Rake | 50mm |
| Fork Length (Axle-To-Crown) | 410mm |
| Trail | 85.8mm very high |
| Mechanical Trail | 80.1mm |
| Wheel Flop | 28.7mm |
| Tire to Pedal Spindle Distance With 170 mm cranks | 139.4mm |
| Pedal Spindle to Ground Clearance With 170 mm cranks | 143.1mm |
Base Build
| Wheel Size | 650B, 27.5 inch (584mm BSD) |
| Tire Width | 2.8in |
| Tire Outer Diameter | 726.2mm |
| Bike Length with Tires | 1864.2mm |
| Suspension Type | Rigid, non-suspension corrected |
| Bar Type | Swept Back Bar |
| Frame Material | Steel |
| Fork Material | Steel |
| Brake Type | Disc |
Source:https://www.crumbworks.jp/blank-3/chunk-pre-orders?lang=en