Road endurance
Kinesis 4S
2026 · 700c wheels · 4 sizes
Aluminium all-season road frameset with a full carbon fork, mudguard mounts and clearance for 32 mm tyres with full mudguards or 36 mm without. Kinesis says it uses the same frame and fork as its R1. Kinesis marks the 51 cm small as having a semi-sloping top tube. Kinesis publishes a single seat tube angle of 74 degrees for every size. Build details are from the 4S Tiagra complete bike.
Size run
Published geometry by size. How each size rides and fits for your rider profile loads with the page.
| Size | 51cm (S) | 54cm (M) | 57cm (L) | 60cm (XL) |
|---|---|---|---|---|
| Stack (mm) | 538 | 557 | 582 | 612 |
| Reach (mm) | 378 | 385 | 394 | 404 |
| Head angle (°) | 71.0 | 72.0 | 72.0 | 72.0 |
| Seat angle (°) | 74.0 | 74.0 | 74.0 | 74.0 |