BMW R 80 RT (1982–1984) — Specs
Identity
Manufacturer: BMW
Model: R 80 RT
Category: Touring
Type: Motorcycle
Years: 1982 → 1984
Engine
Displacement (cc): 797
Cylinders: 2
Power (hp): 50
Power (kW): 37
Torque (Nm): 60
Dimensions
Overall length: 2180 mm
Overall width: 920 mm
Overall height: 1170 mm
Wheelbase: 1465 mm
Ground clearance: 150 mm
Weight (kg): 235
Seat height (mm): 810
Tank (L): 22
Tires
Front tire: 90/90-18
Rear tire: 120/90-17
Front pressure (bar): 1.9
Rear pressure (bar): 1.8
Drivetrain
Drive chain: shaft drive
Ignition
Spark plug: NGK BP6ES
Plug gap: 0.7 mm
Fluids & Filters
Engine oil: SAE20W-50
Engine oil (with filter, L): 2.75
Oil filter: Hiflofiltro HF161
Air filter: Hiflofiltro HFA7801
Brake fluid: DOT 4
Fuel consumption
Estimated: 5.5 L/100 km
Estimated range: ~400 km on a full tank (22.0 L)
Note: real-world ±15-30% depending on riding style
Service
Battery: OEM battery specification
Service interval (km): 10000
Service interval (months): 12
Valve check (km): 24000
Parts and consumables for this motorcycle
Data is gathered with care, but without guarantee. Always confirm critical information with your dealer or workshop.
Service notes
Service interval: every 10,000 km or 12 months, whichever comes first. Valve clearance check every 24,000 km. Valve clearance — intake cold 0.10-0.15 mm, exhaust cold 0.15-0.20 mm. Engine oil: oil grade SAE20W-50, 2.75 L with filter change. Spark plug: NGK BP6ES (gap 0.7 mm). Brake fluid: DOT 4. Drive: shaft drive. Tire pressure: front 1.9 bar, rear 1.8 bar (cold). Tire size: front 90/90-18, rear 120/90-17. Always confirm critical values with the workshop manual or an authorised dealer.
OEM and quality aftermarket parts that fit this bike. Always confirm with your dealer before ordering.
Engine oil
Spec: SAE20W-50, 2.75 L (with filter)
- OEM OEM recommended engine oil (SAE 20W-50)
- Premium Motul 7100 4T (100% Synthetic, Ester)
- Premium Motul 5100 4T Technosynthese (Semi-Synthetic)
Which Motul for this bike?
| Motul 7100 4T ✓ | Motul 5100 4T | |
|---|---|---|
| Product | Motul 7100 4T — 100% fully synthetic | Motul 5100 4T — semi-synthetic |
| Best for | Sport, Naked, Adventure (600cc+), track | Standard, Cruiser, Scooter, daily use |
| RPM protection | Excellent — ester base, stable under load | Good — for normal riding conditions |
- Standard Repsol Moto Racing 4T (Synthetic)
- Standard Elf Moto 4 Tech (Semi-Synthetic)
Fully Synthetic vs Semi-Synthetic
| Fully Synthetic | Semi-Synthetic | |
|---|---|---|
| Base oil | 100% chemical synthesis (ester or PAO) | Mineral oil + synthetic additives |
| Heat resistance | Excellent — stable at extreme heat & RPM | Good — suitable for normal temperatures |
| Cold start | Better — reaches engine faster when cold | Good — adequate for normal climates |
| Change interval | Longer (up to 10,000 km) | Shorter (5,000–7,000 km typical) |
| Price | Higher | Lower |
Oil filter
Spec: Hiflofiltro HF161
- OEM OEM oil filter
- Premium Hiflofiltro HF161
- Premium K&N KN-161
- Standard Champion COF
- Standard Vesrah SF
Air filter
Spec: Hiflofiltro HFA7801
- OEM OEM air filter
- Premium K&N Replacement Air Filter
- Premium DNA High Performance
- Standard Hiflofiltro HFA7801
- Standard Champion CAF
Spark plug
Spec: NGK BP6ES, gap 0.7 mm
- OEM NGK BP6ES
- Premium NGK BPR6EIX
- Premium Denso Iridium Power
- Standard NGK BP6ES
- Standard Denso Standard
Front brake pads
- OEM OEM front brake pads
- Premium Brembo Z04 / SC
- Premium EBC sintered pad – check fitment by VIN
- Standard Ferodo Platinum
- Standard TRW Lucas Sintered
Rear brake pads
- OEM OEM rear brake pads
- Premium Brembo SP
- Premium EBC sintered pad – check fitment by VIN
- Standard Ferodo Platinum
- Standard TRW Lucas
Front tire
Spec: 90/90-18, 1.9 bar
- OEM OEM 90/90-18
- Premium Pirelli Angel GT II
- Premium Pirelli Diablo / Angel
- Standard Bridgestone T32
- Standard Dunlop Sportmax / Trailmax
Rear tire
Spec: 120/90-17, 1.8 bar
- OEM OEM 120/90-17
- Premium Michelin Road 6 GT
- Premium Pirelli Diablo / Angel
- Standard Continental Road Attack 4 GT
- Standard Dunlop Sportmax / Trailmax
Battery
- OEM OEM battery specification
- Premium Generic 12V 16Ah
- Premium Motobatt Quadflex
- Standard Exide AGM
- Standard Varta Powersports
Brake fluid
Spec: DOT 4
- OEM OEM recommended brake fluid (DOT 4)
- Premium Motul RBF 600 / 660
- Premium Castrol React SRF
- Standard TotalEnergies HBF4
- Standard Elf BRAKE FLUID DOT 4
Coolant
- OEM OEM recommended coolant
- Premium Motul Motocool Factory Line
- Premium Engine Ice
- Standard TotalEnergies Coolelf
- Standard Elf Coolelf Auto Supra
Service interval
Spec: 10 000 km / 12 months
- OEM Engine oil + oil filter change
- OEM Air filter inspection
- OEM Spark plug check
- OEM Brake fluid replacement: every 2 years
Valve check
Spec: 24 000 km
- OEM Intake clearance: cold 0.10-0.15 mm
- OEM Exhaust clearance: cold 0.15-0.20 mm
Suspension
Spec: 36 mm telescopic fork / 230 ml SAE 5W/10W
- OEM Fork: 36 mm telescopic fork
- OEM Fork oil grade: 230 ml SAE 5W/10W
Drive chain
- OEM OEM chain (matches OEM pitch and length)
- Premium DID VX3 X-Ring
- Premium DID ZVM-X Pro
- Standard JT Sprockets HDR
- Standard AFAM A5
