Harley-Davidson Sportster S (2021–2027) vs Triumph Speed Twin 900 (2026)
Factory maintenance schedules compared.
| Service | Harley-Davidson Sportster S (2021–2027)1ZC4 | Triumph Speed Twin 900 (2026)DP0G |
|---|---|---|
| Oil change | 5,000 mi | 10,000 mi |
| Valve service | n/a | 20,000 mi |
| Spark plugs | n/a | 20,000 mi |
| Chain | n/a | n/a |
| Brake fluid | n/a | 12 mo |
| Coolant | n/a | n/a |
Common questions
Which is cheaper to maintain, the Harley-Davidson Sportster S (2021–2027) or the Triumph Speed Twin 900 (2026)?
They demand a similar number of scheduled shop visits based on their factory service intervals.