BMW K100 RS (1984) vs Beta RR 4T 430 Enduro (2015)
Comparison technical specifications
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| Make: | BMW | Beta |
| Model: | K100 RS | RR 4T 430 Enduro |
| Years: | 1984 | 2015 |
| Engine: | Four stroke, horizontal in line four cylinder, DOHC, 2 valves per cylinder | Four stroke, single cylinder with countershaft, DOHC, 4 valve |
| Capacity: | 987 cc / 60.2 cub. in | 385.6 cc / 23.5 cu in |
| Bore x Stroke: | 67 x 70 mm | 88 x 63.4 mm |
| Compression Ratio: | 10.2:1 | 12.5:1 |
| Cooling System: | Liquid cooled | Liquid cooled, forced by pump |
| Lubrication: | Wet sump | Forced, 2 oil pumps |
| Induction: | Electronic injection, Bosch LE-Jetronic | Keihin FCR-MX39 |
| Ignition: | Electronic injection, Bosch LE-Jetronic | AC-CDI, Kokusan |
| Spark Plug: | Bosch XR 5 DC / Beru 12-5 DU / Champion A 85 YC | NGK LKAR 8A-9 |
| Starting: | Electric | Electric and kick |
| Clutch: | Dry, single plate, cable operated | Wet multi-disc |
| Transmission: | 5 Speed | 6 Speed |
| Final Drive: | Shaft | Chain |
| Frame: | Tubular space frame, engine serving as load bearing component | Molybdenum steel with double cradle split above exhaust port. Air filter access from the side |
| Front Suspension: | Telescopic fork with hydraulic shock absorber | 48 mm Ø Sachs USD fork, adjustable compression and rebound, TFX technology |
| Front Wheel Travel: | 185 mm / 7.3 in | 290 mm / 11.4 in |
| Rear Suspension: | Monolever swinging arm | Sachs shock w/adjustable rebound and hi/low speed compression |
| Rear Wheel Travel: | 110 mm / 4.3 in. | 290 mm / 11.4 in |
| Front Brakes: | 2 x ∅285 mm discs, 2 piston calipers | Single wave Ø 260 mm floating disc, 2 piston floating caliper |
| Rear Brakes: | Single ∅285 mm disc, 1 piston caliper | Single Ø 240 mm disc, 1 piston floating caliper |
| Front Tyre: | 100/90-V18 | 90/90 -21 |
| Rear Tyre: | 130/90-V17 | 140/80 -18 |
| Dimensions: | Length 2220 mm / 87.4 in Width 800 mm / 31.5 in Height 1271 mm / 50.0 in | Length: 2180 mm / 85.8 in Width: 807 mm / 31.8 in Height: 1270 mm / 50.0 in |
| Wheelbase: | 1516 m /59.7 in. | 1490 mm / 58.7 in |
| Ground Clearance: | 175 mm / 6.9 in. | 320 mm / 12.6 in |
| Seat Height: | 810 mm / 31.90 in. (760 mm / 29.9 in for low seat model) | 940 mm / 37.0 |
| Fuel Capacity: | 22 Liters / 5.8 US gal | 8.0 L / 2.1 US gal |