DOC // MSL-BMW-R-1100-RS
CHASSIS: 259S / 0411
YEARS: 1993–2001
VERIFIED: 2026-11-10
JASO MA2
Tubeless Rim
ARCHIVE SPEC SHEET
BMW R 1100 RS (259S) — OEM Fluid, Tire Pressure & Maintenance Specs
1,085cc Air/Oil-Cooled Boxer Twin HC 8-Valve · Source: BMW R 1100 RS (259S) (1993–2001) Official Owner’s Manual Maintenance Specifications
OEM SPECIFICATION SUMMARY
According to the BMW R 1100 RS (259S) (1993–2001) Official Owner’s Manual Maintenance Specifications, the 1993–2001 BMW R 1100 RS (259S) (chassis 259S/0411) requires 3.5 L (3.70 US qt) of SAE 20W-50 (JASO MA2, API SJ / BMW Advantec Pro 15W-50) engine oil for a drain-only change and 3.75 L (3.96 US qt) with filter service (11421460845 / HF163). 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 (160/60 ZR18), paired with 2× NGK BKR7EKC spark plug(s) and a YTX14-BS / BMW 14Ah AGM battery.
Engine Oil (With Filter)
3.75 L (3.96 US qt)
SAE 20W-50 · JASO MA2
Drain only: 3.5 L (3.70 US qt)
Drain only: 3.5 L (3.70 US qt)
Cold Tire Pressure (Solo)
F 36 / R 42 PSI
F 250 kPa (2.50 bar)
R 290 kPa (2.90 bar)
R 290 kPa (2.90 bar)
OEM Spark Plug
NGK BKR7EKC ×2
Gap: 0.8 mm
Seat · Wet Weight · Range
800 mm · 239 kg
31.5 in · 527 lbs
Est. Range: ~432 km (268 mi)
Est. Range: ~432 km (268 mi)
1. Engine Lubrication, Filter & Clutch Specifications
| Clutch Architecture | Dry Single-Plate Manual Clutch (Separate Gearbox Oil) |
|---|---|
| Recommended Viscosity & Grade | SAE 20W-50 (Alt: SAE 20W-50) · JASO MA2 · API SJ / BMW Advantec Pro 15W-50 |
| Oil Volume (Drain / With Filter / Overhaul) |
• Drain only: 3.5 L (3.70 US qt) • With filter/strainer: 3.75 L (3.96 US qt) • Complete dry overhaul: 4.1 L (4.33 US qt) |
| OEM Oil Filter Code & Type | 11421460845 / HF163 |
| 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: 160/60 ZR18 (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 BKR7EKC × 2 (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 | 1085 cc · 90 hp @ 7,250 rpm · 95 N·m (70.1 lb-ft) @ 5,500 rpm |
|---|---|
| Seat Height & Wet Curb Weight | 800 mm (31.5 in) · 239 kg (527 lbs) |
| Fuel Tank & Est. Real-World Range | 23 L (6.1 US gal) · ~18.8 km/L → ~432 km (268 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
Historic 1993 launch model (259S) that debuted the stressed-member 4-valve Oilhead Boxer engine and Telelever front suspension.
Oil & Clutch Mechanical Engineering Note
BMW air/oil-cooled Boxer platform (R 1150, K25 R 1200, R nineT family, R 12, R 18) featuring an automotive dry single-plate clutch with separate engine, gearbox, and shaft bevel oils.
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