| Frame Size | S | M | L |
| Estimated Rider Height | 161cm - 171cm | 171cm - 181cm | 181cm - 190cm |
| Specified Rider Height | 162cm - 172cm | 172cm - 180cm | 180cm - 188cm |
| Class | Gravel | Gravel | Gravel |
| Style | xtra rowdy | xtra rowdy | xtra rowdy |
| Material | titanium | titanium | titanium |
| Fork | rigid | rigid | rigid |
| Handlebar | drop bar | drop bar | drop bar |
| Suspension Correction | 40 mm | 40 mm | 40 mm |
| Top Tube Effective Length | 545 | 575 | 600 |
| Effective Top Tube Length (Est) | 560.7389 | 593.7895 | 618.9874 |
| Reach | 401.0 | 431.0 | 443.8 |
| Stack | 576 | 587 | 615 |
| Standover | |||
| Head Tube Angle | 67.7 | 68.0 | 68.3 |
| Seat Tube Angle | 74.5 | 74.5 | 74.1 |
| Chainstay Length | 428 | 430 | 435 |
| Front Center | 664 | 694 | 715 |
| Bottom Bracket Drop | 74 | 70 | 68 |
| Trail | 99 | 96 | 94 |
| Trail 45 | 92 | 90 | 88 |
| UDH | YES | YES | YES |
| Tire Width Max 700c | 55 | 55 | 55 |
| Tire Width Max 650b | 2.2 | 2.2 | 2.2 |
| Axle Spacing | 142 (road) | 142 (road) | 142 (road) |
| Stealth Dropper | YES | YES | YES |
| Seatpost Diameter | 27.2 | 27.2 | 27.2 |
| Max Chainring 1x | 44 | 44 | 44 |
| Dropout | fixed | fixed | fixed |
| Internal Storage | |||
| Frame Weight | |||
| Base Build USD | |||
| Frameset USD | $3123 | $3123 | $3123 |
| Location | Paris, France | Paris, France | Paris, France |
Chiru Alpin 2025
Brand: Chiru
Model: Alpin
Year: 2025
Category: Gravel
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