Road endurance
Bossi Summit
2025 · 700c wheels · 6 sizes
Titanium endurance and all-road bike, now listed as the Summit Titanium All Road; the geometry chart is Bossi's MY25 table and still appears on the current product page. Fully integrated cockpit, T47 bottom bracket, UDH dropouts, rack mounts and clearance for 42 mm tyres. Complete Core Builds come on 32 mm Pirelli Cinturato tyres, with crank length, stem and bar sizing chosen by the rider at order, so no stock cockpit sizes are listed. Bossi quotes a 62 mm trail figure for the bike in general, which matches the 54 on 32 mm tyres.
Source: bossibicycles.com/products/summit-titanium-allroad-bike
I ride:
Size run
Published geometry by size. How each size rides and fits for your rider profile loads with the page.
| Size | 50 | 52 | 54 | 56 | 58 | 60 |
|---|---|---|---|---|---|---|
| Stack (mm) | 530 | 552 | 572 | 591 | 608 | 625 |
| Reach (mm) | 368 | 372 | 376 | 381 | 388 | 395 |
| Head angle (°) | 71.0 | 71.5 | 72.0 | 72.5 | 72.5 | 73.0 |
| Seat angle (°) | 74.5 | 74.0 | 73.5 | 73.5 | 72.5 | 72.0 |