2026 Diamant 140 Base M
Build
650B/27.5 in × 2.4 in
Insights
Somewhat aggressive stack and reach vs trend of off-road touring bikes
Stack and Reach vs. Category Trend
View all sizes
Geometry
| Stack | 575mm |
| Reach | 385mm |
| Stack to Reach Ratio | 1.49:1 |
| Seat Tube Length, C-T | 500mm |
| Top Tube Length, Effective/Horizontal HT Top | 582mm |
| Top Tube Slope | 10.3deg |
| Head Tube Angle | 69deg |
| Seat Tube Angle | 73deg |
| Head Tube Length | 145mm |
| Bottom Bracket Drop | 70mm |
| Bottom Bracket Height | 283mm |
| Chainstay Length | 468mm |
| Chainstay Length Horizontal | 462.7mm |
| Front-Center | 658mm |
| Front-Center Horizontal | 654.3mm |
| Wheelbase | 1117mm |
| Fork Offset/Rake | 46mm |
| Fork Length (Axle-To-Crown) | 477mm |
| Trail | 86.2mm very high |
| Mechanical Trail | 80.5mm |
| Wheel Flop | 28.8mm |
| Tire to Pedal Spindle Distance With 170 mm cranks | 135mm |
| Pedal Spindle to Ground Clearance With 170 mm cranks | 113mm |
Base Build
| Wheel Size | 650B, 27.5 inch (584mm BSD) |
| Tire Width | 2.4in |
| Tire Outer Diameter | 705.9mm |
| Bike Length with Tires | 1822.9mm |
| Suspension Type | Rigid, suspension corrected |
| Bar Type | Drop Bar |
| Frame Material | Aluminum |
| Fork Material | Unknown |
| Brake Type | Disc |
Source:https://www.diamantrad.com/de-DE/bike/140-stepover/