Triumph Street Twin 900 2021 Maintenance Schedule
The 2021 Triumph Street Twin 900 maintenance schedule below covers the manufacturer's recommended service intervals for coolant, general maintenance, valve clearance, tires, brake fluid, drive chain maintenance, oil, air filter and spark plugs. Intervals are shown in kilometres by default and can be switched to miles.
900ccEngine size
42Maintenance items
Official manufacturer manual
Sourced from Triumph Bonneville T100/T120/Speed Twin/Street Scrambler/Street Twin/Thruxton RS Owner's Handbook (worldoftriumph.com) (Owners Manual) (this document covers model years 2019–2022): cdn.shopify.com
Full schedule
| Task | Interval | Difficulty | Notes |
|---|---|---|---|
| Coolant hose chafe/damage check | Every 16,000 km | Easy–Moderate | Check coolant hoses for chafing/cracks/damage; replace if necessary. |
| Coolant level check/adjust | Every 16,000 km (first at 1,000 km) · Every 12 months | Easy–Moderate | Check/adjust coolant level. |
| Coolant renewal | Every 36 months · Replace every 36 months | Easy–Moderate | Renew coolant. |
| Clutch cable check/adjust | Every 16,000 km (first at 1,000 km) · Every 12 months | Easy | Check clutch cable function and adjust as necessary. |
| Valve clearance check | Every 32,000 km | Advanced | Check valve clearances. |
| Camshaft timing check | Every 32,000 km | Advanced | Check camshaft timing. |
| Tyre wear/damage check | Every 16,000 km (first at 1,000 km) · Every 12 months | Moderate | Check tyre wear and damage. |
| Tyre pressure check/adjust | Every 16,000 km (first at 1,000 km) · Every 12 months | Moderate | Check/adjust tyre pressures. |
| Wheel damage inspection | Every 16,000 km (first at 1,000 km) · Every 12 months | Moderate | Inspect wheels for damage. |
| Spoke damage/tightness check | Every 16,000 km (first at 1,000 km) · Every 12 months | Moderate | Check wheels for broken or damaged spokes and check spoke tightness. |
| Wheel bearing check | Every 16,000 km (first at 1,000 km) · Every 12 months | Moderate | Check wheel bearings for wear/smooth operation. |
| Steering free-operation check | Every 16,000 km (first at 1,000 km) · Every 12 months | Easy | Check steering for free operation. |
| Suspension leak/smooth-operation check | Every 16,000 km (first at 1,000 km) · Every 12 months | Easy | Check front and rear suspension for damage, leaks, and smooth operation. |
| Fork oil renewal | Every 64,000 km | Advanced | Renew fork oil. |
| Headstock bearing check/adjust | Every 16,000 km (first at 1,000 km) · Every 12 months | Moderate | Check/adjust headstock bearings. |
| Headstock bearing lubrication | Every 32,000 km | Moderate | Lubricate headstock bearings. |
| Brake pad wear check | Every 16,000 km (first at 1,000 km) · Every 12 months | Easy | Check brake pad wear levels. |
| Brake master cylinder leak check | Every 16,000 km (first at 1,000 km) · Every 12 months | Easy | Check brake master cylinders for fluid leaks. |
| Brake caliper leak/seizure check | Every 16,000 km (first at 1,000 km) · Every 12 months | Easy | Check brake calipers for fluid leaks and seized pistons. |
| Brake fluid level check | Every 16,000 km (first at 1,000 km) · Every 12 months | Easy | Check brake fluid levels. |
| Brake fluid renewal | Every 24 months · Replace every 24 months | Moderate | Renew brake fluid. |
| Drive chain slack check/adjust | Every 16,000 km (first at 1,000 km) · Every 12 months | Easy | Check/adjust drive chain slack. |
| Drive chain wear check | Every 800 km | Easy | Check drive chain wear. |
| Drive chain lubrication | Every 300 km | Easy | Lubricate drive chain. |
| Drive chain rubbing strip check | Every 16,000 km (first at 1,000 km) · Every 12 months | Easy | Check drive chain rubbing strip for wear. |
| Electrical systems check | Every 16,000 km (first at 1,000 km) · Every 12 months | Easy–Moderate | Check lights, instruments and electrical systems. |
| ECM calibration check | Every 16,000 km (first at 1,000 km) · Every 12 months | Easy–Moderate | Check instruments and engine ECM for latest calibration download using the Triumph diagnostic tool. |
| Fastener security check | Every 16,000 km (first at 1,000 km) · Every 12 months | Easy–Moderate | Visually inspect fasteners for security. |
| Bank angle indicator wear check | Every 16,000 km (first at 1,000 km) · Every 12 months | Easy–Moderate | Visually inspect bank angle indicators for wear. |
| Side stand operation check | Every 16,000 km (first at 1,000 km) · Every 12 months | Easy–Moderate | Lubricate/check operation of side stand and centre stand. |
| Side stand pivot pin clean/grease | Every 16,000 km | Easy–Moderate | Clean/grease side stand pivot pin. |
| Engine leak check | Every 16,000 km (first at 1,000 km) · Every 12 months | Easy | Check engine for leaks. |
| Engine oil and filter renewal | Every 16,000 km (first at 1,000 km) · Every 12 months | Easy | Renew engine oil and oil filter. |
| Fuel system leak/chafe check | Every 16,000 km (first at 1,000 km) · Every 12 months | Easy | Check fuel system for leaks, chafing etc. |
| Throttle body plate check/clean | Every 16,000 km | Moderate | Check/clean throttle body plate (butterfly). |
| Autoscan diagnostic check | Every 16,000 km (first at 1,000 km) · Every 12 months | Moderate | Carry out a full Autoscan using the Triumph Diagnostic Tool (print a customer copy). |
| Air filter renewal | Every 16,000 km | Easy | Renew air cleaner element. |
| Fuel filter renewal | Every 32,000 km · Replace every 32,000 km | Moderate | Renew fuel filter. |
| Fuel hose renewal | Every 48 months · Replace every 48 months | Moderate | Renew fuel hoses. |
| Evaporative hose renewal | Every 48 months · Replace every 48 months | Moderate | Renew evaporative loss hoses (certain markets only). |
| Spark plug renewal | Every 32,000 km · Replace every 32,000 km | Easy–Moderate | Renew spark plugs. |
| Cooling system leak check | Every 16,000 km (first at 1,000 km) · Every 12 months | Easy–Moderate | Check cooling system for leaks. |
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Easy: basic tools, straightforward Easy–Moderate: varies by task — somewhere between the two Moderate: some mechanical know-how helps Advanced: specialized tools/skill, still DIY-doable Expert: significant experience required Professional: dealer or shop recommended
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