2025 CHIRU Nanulak 29er S
Build
700C/29 in × 76 mm
Stack and Reach vs. Category Trend
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Geometry
| Stack | 616mm |
| Reach | 398mm |
| Stack to Reach Ratio | 1.55:1 |
| Seat Tube Length, C-C | 430mm |
| Top Tube Length, Effective/Horizontal HT Top | 575mm |
| Head Tube Angle | 68.5deg |
| Seat Tube Angle | 74deg |
| Head Tube Length | 115mm |
| Bottom Bracket Drop | 75mm |
| Bottom Bracket Height | 312mm |
| Chainstay Length Horizontal | 580mm |
| Front-Center | 664.3mm |
| Front-Center Horizontal | 660mm |
| Wheelbase | 1240mm |
| Fork Offset/Rake | 50mm |
| Fork Length (Axle-To-Crown) | 485mm |
| Trail | 98.7mm very high |
| Mechanical Trail | 91.8mm |
| Wheel Flop | 33.7mm |
| Tire to Pedal Spindle Distance With 170 mm cranks | 107.3mm |
| Pedal Spindle to Ground Clearance With 170 mm cranks | 142mm |
29er Build
| Wheel Size | 700C, 29 inch (622mm BSD) |
| Tire Width | 76mm |
| Tire Outer Diameter | 774mm |
| Bike Length with Tires | 2014mm |
| Suspension Type | Rigid, non-suspension corrected |
| Bar Type | Flat Bar |
| Frame Material | Titanium |
| Fork Material | Carbon/Composite |
| Brake Type | Disc |
Published Sizing Recommendations
| Height | 164 cm to 173 cm |
| PBH | 75 cm to 84 cm |
Source:https://www.chirubikes.com/en/kit-cadre/nanulak/