Triumph Bonneville T120 / Black (1200 HT) — OEM Fluid, Tire Pressure & Maintenance Specs
1,200cc Liquid-Cooled Parallel-Twin SOHC 8-Valve 270° High Torque (Wet Assist Clutch) · Source: Triumph Bonneville T120 Official Owner’s Handbook Specifications
According to the Triumph Bonneville T120 Official Owner’s Handbook Specifications, the 2016–Present Triumph Bonneville T120 / Black (1200 HT) (chassis DU01/DU04) requires 3.2 L (3.38 US qt) of SAE 10W-40 (JASO MA2, API SH or higher Semi/Full Synthetic) engine oil for a drain-only change and 3.4 L (3.59 US qt) with filter service (T1218001 / HF204). Standard solo cold tire pressure is 220 kPa / 2.20 bar / 32 PSI front (100/90-18 M/C 56H) and 250 kPa / 2.50 bar / 36 PSI rear (150/70R17 M/C 69H), paired with 2× NGK LMAR8A-9 spark plug(s) and a YTX12-BS battery.
Drain only: 3.2 L (3.38 US qt)
R 250 kPa (2.50 bar)
Est. Range: ~309 km (192 mi)
1. Engine Lubrication, Filter & Clutch Specifications
| Clutch Architecture | Wet Multi-Plate Manual Clutch NEVER use JASO MB |
|---|---|
| Recommended Viscosity & Grade | SAE 10W-40 (Alt: SAE 10W-50) · JASO MA2 · API SH or higher Semi/Full Synthetic |
| Oil Volume (Drain / With Filter / Overhaul) |
• Drain only: 3.2 L (3.38 US qt) • With filter/strainer: 3.4 L (3.59 US qt) • Complete dry overhaul: 3.8 L (4.02 US qt) |
| OEM Oil Filter Code & Type | T1218001 / HF204 |
| Correct Oil Level Check Method | Hold bike upright on level ground 3–5 min after warm shutdown; read crankcase sight glass |
| Oil Drain Bolt Torque | 25 N·m (18.4 lb-ft / 2.55 kgf·m) — Use fresh crush washer |
2. Cold Tire Pressures, Wheels, Ignition & Drivetrain
| Front / Rear OEM Tire Sizes | Front: 100/90-18 M/C 56H · Rear: 150/70R17 M/C 69H (Tube-Type Spoke Rim) |
|---|---|
| Cold Tire Pressure — Solo Riding |
Front: 220 kPa / 2.20 bar / 32 PSI Rear: 250 kPa / 2.50 bar / 36 PSI |
| Cold Tire Pressure — 2-Up / Loaded Touring |
Front: 220 kPa / 2.20 bar / 32 PSI Rear: 290 kPa / 2.90 bar / 42 PSI |
| OEM Spark Plug & Quantity | NGK LMAR8A-9 × 2 (Gap: 0.8–0.9 mm) |
| OEM Battery Code & Rating | YTX12-BS (12V 10.0Ah MF AGM) |
| Final Drive Maintenance | 525 X-Ring Chain (102 links) — Maintain 20–30 mm slack |
| Brake Fluid & Coolant | DOT 4 · Triumph D2053 / HD4X OAT Premixed Coolant (~1.8 L) |
3. Ergonomics, Range & Scheduled Service Intervals
| Displacement · Max Power · Peak Torque | 1200 cc · 80 hp @ 6,550 rpm · 105 N·m (77.4 lb-ft) @ 3,500 rpm |
|---|---|
| Seat Height & Wet Curb Weight | 790 mm (31.1 in) · 236 kg (520 lbs) |
| Fuel Tank & Est. Real-World Range | 14.5 L (3.8 US gal) · ~21.3 km/L → ~309 km (192 mi) |
| OEM Scheduled Maintenance Intervals |
• First Break-In: 1,000 km • Engine Oil / Filter: 16,000 km / 16,000 km • Air Filter / Spark Plug: 16,000 km / 32,000 km • Valve Clearance Check: 32,000 km |
4. Generation Cutoffs & Real-World Wrenching Gotchas
Model-Year & Chassis Generation Notes
2021+ Euro 5 (DU04) models shed 7 kg via lighter wheel rims and switched from Nissin to Brembo front calipers with standard cruise control, while keeping identical 3.2 L / 3.4 L oil volume and T1218001 / HF204 filter.
Oil & Clutch Mechanical Engineering Note
Delivering 105 N·m at just 3,500 rpm, the 1200cc High Torque twin puts substantial low-rpm load on rod bearings—run full-synthetic SAE 10W-40 or 10W-50 JASO MA2.
Garage Wrenching Gotchas
- Even though the rear tire is radial (150/70R17), T120 wire-spoke rims require inner tubes front and rear—tubeless plug kits will NOT seal a puncture!
- Check your under-seat placard: early T120 manuals list 2.2 bar (32 PSI) front / 2.5 bar (36 PSI) rear solo, while updated high-load specs call for up to 2.5 bar (36 PSI) front / 2.9 bar (42 PSI) rear.
5. Frequently Asked Questions (FAQ)
How much oil does a Triumph Bonneville T120 take with a filter change?
Drain-only takes 3.2 L, and oil plus spin-on filter (T1218001 / HF204) takes 3.4 L (3.6 US qt).
Does the Triumph Bonneville T120 have tubeless tires?
No—the Bonneville T120’s traditional wire-spoke wheels require inner tubes front and rear (unlike the cast-wheel Speed Twin series).
What are the service and valve intervals on the Bonneville T120?
Annual/mileage service interval is 16,000 km (10,000 mi) or 12 months, with valve clearance and spark plug replacement at 32,000 km (20,000 mi).