Beta RR 400 Enduro (2007-08) vs Beta Alp 4.0 (2007-08) vs Beta RS 400 (2014)
Comparison technical specifications
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| Make: | Beta | Beta | Beta |
| Model: | RR 400 Enduro | Alp 4.0 | RS 400 |
| Years: | 2007-08 | 2007-08 | 2014 |
| Engine: | Four stroke, single cylinder, DOHC, 4 valves | Four stroke, single cylinder, SOHC, 4 valves | Four stroke, single cylinder, 4 valve |
| Capacity: | 398 cc / 24.3 cu in | 349 cc / 21.3 cu in | 398 cc / 24.3 cu in |
| Bore x Stroke: | 95 x 56.2 mm | 79 x 71.2 mm | 95 x 56.2 mm |
| Compression Ratio: | 11.0:1 | 9.5:1 | 12.4:1 |
| Cooling System: | Air cooled | Air cooled | Liquid cooled |
| Induction: | Keihin FCR-MX 39 | Mikuni BST 33 | Keihin FCR-MX, Ø 39mm |
| Ignition: | DC-CDI without trembler with variable ignition timing, Kokusan type | Electronic | DC-CDI with variable ignition timing, Kokusan. |
| Starting: | Electric and kick | Electric | Electric and Kick |
| Transmission: | 6 Speed | 6 Speed | 6 Speed |
| Final Drive: | Chain | Chain | O-ring chain, DID |
| Frame: | Molybdenum steel with double cradle split above the exhaust port | Tubular steel, double closed cradle | Molybdenum steel with double cradle split above exhaust port. Air filter access from the side |
| Front Suspension: | Hydraulic USD fork, 45 mm Ø | Hydraulic fork, 48mm Ø | Sachs USD fork, Ø 48 mm, adjustable compression and rebound, TFX technology, |
| Front Wheel Travel: | 290 mm / 11.4 in | 200 mm / 7.9 in | 290 mm / 11.4 in |
| Rear Suspension: | Monoshock with progressive compound lever | Single shock adjustable spring preload | Sachs shock w/adjustable rebound and hi/low speed compression, |
| Rear Wheel Travel: | 300 mm / 11.8 in | 220 mm / 8.7 in | 290 mm / 11.4 in |
| Front Tyre: | 90/90 -21 | 90/90 -21 | 90/90 -21 |
| Rear Tyre: | 140/80 -18 | 140/80 -18 | 140/80 -18 |
| Front Brakes: | Single 255 mm Ø disc, 2 piston caliper | Single 260 mm Ø disc, 2-piston caliper | Single Ø 260 mm floating disc, 2 piston caliper |
| Rear Brakes: | Single 240 mm Ø disc, 1 piston caliper | Single 220 mm Ø disc, 2-piston caliper | Single Ø 240mm disc, 1 piston caliper |
| Seat Height: | 940 mm / 37 in | 865 mm / 34 in | 934.7 mm / 36.8 in |
| Ground Clearance: | 320 mm / 12.6 in | 300 mm / 1.8 in | 320 mm / 2.6 in |
| Dry Weight: | 117,5 kg / 258 lbs | 133 kg / 293 lbs | 109 kg / 245 lbs |
| Fuel Capacity: | 8.5 L / 2.2 US gal | 10.5 Litres / 2.8 US gal | 7.9 L / 2.1 US gal |