BMW R 12 nineT (KR1) — OEM Fluid, Tire Pressure & Maintenance Specs
1,170cc Air/Oil-Cooled Boxer Twin DOHC 8-Valve (One-Piece Trellis Frame) · Source: BMW R 12 nineT (KR1) (2024–Present) Official Owner’s Manual Maintenance Specifications
According to the BMW R 12 nineT (KR1) (2024–Present) Official Owner’s Manual Maintenance Specifications, the 2024–Present BMW R 12 nineT (KR1) (chassis KR1/0N11) requires 3.7 L (3.91 US qt) of SAE 15W-50 (JASO MA2, API SJ / BMW Advantec Pro 15W-50) engine oil for a drain-only change and 4 L (4.23 US qt) with filter service (11427673541 / HF164). Standard solo cold tire pressure is 250 kPa / 2.50 bar / 36 PSI front (120/70 ZR17) and 290 kPa / 2.90 bar / 42 PSI rear (180/55 ZR17), paired with 4× NGK MAR8B-JDS / DCPR8EKC spark plug(s) and a YTX14-BS / BMW 14Ah AGM battery.
Drain only: 3.7 L (3.91 US qt)
R 290 kPa (2.90 bar)
Est. Range: ~314 km (195 mi)
1. Engine Lubrication, Filter & Clutch Specifications
| Clutch Architecture | Dry Single-Plate Manual Clutch (Separate Gearbox Oil) |
|---|---|
| Recommended Viscosity & Grade | SAE 15W-50 (Alt: SAE 20W-50) · JASO MA2 · API SJ / BMW Advantec Pro 15W-50 |
| Oil Volume (Drain / With Filter / Overhaul) |
• Drain only: 3.7 L (3.91 US qt) • With filter/strainer: 4 L (4.23 US qt) • Complete dry overhaul: 4.3 L (4.54 US qt) |
| OEM Oil Filter Code & Type | 11427673541 / HF164 |
| 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 | 32 N·m (23.6 lb-ft / 3.26 kgf·m) — Use fresh crush washer |
| Separate Transmission / Gearbox Oil | 800 ml (0.80 L) — SAE 75W-90 GL-5 (800 ml separate manual gearbox) |
| Final Drive / Bevel Gear Oil | 180 ml (0.18 L) — SAE 75W-90 Hypoid Axle Oil (180 ml Paralever bevel drive) |
2. Cold Tire Pressures, Wheels, Ignition & Drivetrain
| Front / Rear OEM Tire Sizes | Front: 120/70 ZR17 · Rear: 180/55 ZR17 (Tubeless) |
|---|---|
| Cold Tire Pressure — Solo Riding |
Front: 250 kPa / 2.50 bar / 36 PSI Rear: 290 kPa / 2.90 bar / 42 PSI |
| Cold Tire Pressure — 2-Up / Loaded Touring |
Front: 250 kPa / 2.50 bar / 36 PSI Rear: 290 kPa / 2.90 bar / 42 PSI |
| OEM Spark Plug & Quantity | NGK MAR8B-JDS / DCPR8EKC × 4 (Gap: 0.8 mm) |
| OEM Battery Code & Rating | YTX14-BS / BMW 14Ah AGM (12V 14.0Ah MF AGM) |
| Final Drive Maintenance | Cardan Shaft Final Drive — Replace rear bevel-gear hypoid oil at exact measured volume |
| Brake Fluid & Coolant | DOT 4 · Air/Oil-Cooled Engine (No liquid coolant) |
3. Ergonomics, Range & Scheduled Service Intervals
| Displacement · Max Power · Peak Torque | 1170 cc · 109 hp @ 7,000 rpm · 115 N·m (84.8 lb-ft) @ 6,500 rpm |
|---|---|
| Seat Height & Wet Curb Weight | 795 mm (31.3 in) · 220 kg (485 lbs) |
| Fuel Tank & Est. Real-World Range | 16 L (4.2 US gal) · ~19.6 km/L → ~314 km (195 mi) |
| OEM Scheduled Maintenance Intervals |
• First Break-In: 1,000 km • Engine Oil / Filter: 10,000 km / 10,000 km • Air Filter / Spark Plug: 20,000 km / 20,000 km • Valve Clearance Check: 10,000 km |
4. Generation Cutoffs & Real-World Wrenching Gotchas
Model-Year & Chassis Generation Notes
Next-generation 2024 KR1 roadster replacing the old K21 split frame and right-side intake snorkel with a one-piece tubular steel frame, under-seat airbox, and 16 L aluminum tank.
Oil & Clutch Mechanical Engineering Note
Retains the classic dry single-plate clutch and three-cavity fluid layout: 4.0 L of Advantec Pro 15W-50 in the crankcase, 800 ml 75W-90 in the gearbox, and 180 ml bevel oil.
Garage Wrenching Gotchas
- Moving the airbox directly beneath the rider seat eliminates lifting the fuel tank just to service the air filter—a major maintainability win over K21.
- Because of the new one-piece frame and relocated catalyst hanger, legacy 2014–2023 K21 slip-on exhausts and tail tidy kits do not bolt onto KR1.
5. Frequently Asked Questions (FAQ)
How are engine and separate drivetrain fluid capacities split on the BMW R 12 nineT (KR1)?
The engine sump takes 3.7 L drain-only and 4 L (4.23 US qt) with filter (11427673541 / HF164) of SAE 15W-50 (JASO MA2), while isolated drivetrain cavities (separate gearbox 800 ml, final drive 180 ml) require dedicated gear/chaincase fluid.
How do you accurately check the oil level on the R 12 nineT (KR1), and what are its service intervals?
Hold the motorcycle dead-vertical on level ground 2–3 minutes after warm shutdown and verify the oil sits mid-way between the Upper and Lower marks in the crankcase sight glass—never on the sidestand. Torque the drain plug to 32 N·m with a new crush washer. Factory oil change intervals are every 10,000 km, with valve clearance inspection every 10,000 km.
What are the cold tire pressures, puncture repair type, seat height, and range of the R 12 nineT (KR1)?
Fitted with 120/70 ZR17 front and 180/55 ZR17 rear tubeless rims (compatible with roadside plug kits), set cold tire pressures to 36 / 42 PSI (250/290 kPa) solo or 36 / 42 PSI loaded. Seat height is 795 mm (31.3 in) at 220 kg wet weight, delivering ~314 km per 16 L tank.