Beta RR 4T 390 Enduro (2015)

The Beta RR 4T 390 Enduro is a dirt bike made in 2015, featuring a single-cylinder four-stroke engine, with a total capacity of 385.6cc. The compression ratio of the bike is 12.5:1, and it uses forced lubrication with two oil pumps. The cooling system is liquid-based and forced by a pump. The ignition system of the bike is based on AC-CDI, Kokusan, and it uses a NGK LKAR 8A-9 spark plug. The bike can be started with both electric and kick start, and it uses a wet multi-disc clutch, with a 6-speed transmission, and a chain-based final drive. The motorcycle features a molybdenum steel frame with double cradle split, with air filter access from the side. The front suspension includes a 48mm Sachs USD fork, while the rear suspension features a Sachs shock with adjustable rebound and hi/low-speed suspension. The front brakes have a single wave 260mm floating disc with a 2-piston floating caliper, while the rear brakes have a single 240mm disc with a 1-piston floating caliper. The wheels are 1.60 x 21 for the front and 2.15 x 18 for the rear, with 90/90-21 and 140/80-18 tires, respectively. The bike has a length of 2180mm, a width of 807mm, and a height of 1270mm. The wheelbase is 1490mm, and the seat height is 940mm. The dry weight of the motorcycle is 112kg, with a fuel capacity of 8.0L, including a fuel reserve of 1.3L.

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Technical specifications:

Make Model: Beta RR 4T 390 Enduro

Year: 2015

Engine: Four stroke, single cylinder with countershaft, DOHC, 4 valve

Capacity: 385.6 cc / 23.5 cu in

Bore x Stroke: 88 x 63.4 mm

Compression Ratio: 12.5:1

Lubrication: Forced, 2 oil pumps

Cooling System: Liquid cooled, forced by pump

Induction: Keihin FCR-MX39

Ignition: AC-CDI, Kokusan

Spark Plug: NGK LKAR 8A-9

Starting: Electric and kick

Clutch: Wet multi-disc

Transmission: 6 Speed

Final Drive: Chain

Primary Drive: 28:76

Frame: Molybdenum steel with double cradle split above exhaust port. Air filter access from the side

Front Suspension: 48 mm Sachs USD fork, adjustable compression and rebound, TFX technology

Front Wheel Travel: 290 mm / 11.4 in

Rear Suspension: Sachs shock w/adjustable rebound and hi/low speed compression

Rear Wheel Travel: 290 mm / 11.4 in

Front Brakes: Single wave 260 mm floating disc, 2 piston floating caliper

Rear Brakes: Single 240 mm disc, 1 piston floating caliper

Front Wheel: 1.60 x 21

Rear Wheel: 2.15 x 18

Front Tyre: 90/90 -21

Rear Tyre: 140/80 -18

Dimensions: Length: 2180 mm / 85.8 in Width: 807 mm / 31.8 in Height: 1270 mm / 50.0 in

Wheelbase: 1490 mm / 58.7 in

Seat Height: 940 mm / 37.0

Ground Clearance: 320 mm / 12.6 in

Footrest Height: 413 mm / 16.3 in

Dry Weight: 112 kg / 247 lb

Fuel Capacity: 8.0 L / 2.1 US gal

Fuel Reserve: 1.3 L / 0.3 US gal