AI-generated · grounded in NHTSA data
Reliability & 5-year cost of ownership — 2021 Triumph Rocket 3 R
Overall rating NHTSA-grounded
Below average
Estimated 5-year repair + maintenance cost: $2,500–$4,500
The 2021 Triumph ROCKET 3 R suffers from brake-related recalls, specifically master cylinder failure and air in the ABS system. Complaints about the service brakes corroborate these issues, leading to a below-average reliability rating despite limited overall complaints.
Most-common failures
| Part | Typical mileage | Cost range | Frequency |
|---|---|---|---|
| rear brake master cylinder | 20,000–40,000 miles | $350–$600 | very common |
| brake fluids and lines | 15,000–35,000 miles | $150–$300 | common |
| fuel system | 25,000–50,000 miles | $200–$500 | occasional |
Scheduled maintenance to budget
Routine items every owner should plan for.
- Replace brake fluid every 2 years
- Oil change every 5,000 miles
- Inspect and replace air filter
- Check tire condition and pressure
- Chain lubrication and adjustment
- Valve clearance check
- Spark plug replacement
Warning signs to watch for
Symptoms that signal a major upcoming repair.
- Spongy brake feel
- Increased stopping distances
- Brake fluid leaks
- Uneven engine performance
- Rough idling
Generated by gpt-4o on 8/24/2026. Cost ranges are conservative estimates that account for typical regional variation.