Beta RR 400 Enduro (2009-10)

The Beta RR 400 Enduro was a motorcycle produced in 2009-10 with a four stroke, single cylinder, DOHC, 4 valve engine and a capacity of 398cc. It had a compression ratio of 12.4:1, forced lubrication with 2 oil pumps, and used 15W-50 engine oil. The cooling system was liquid cooled and it had a Keihin FCR-MX 39 induction, with a DC-CDI ignition without trembler and Kokusan type variable ignition timing. It had both electric and kick starting, a wet multi-plate clutch, and a 6-speed transmission. The final drive was by chain with gear ratios ranging from 12:31 to 28:24. The frame was made of molybdenum steel, with a double cradle split above the exhaust port. It had hydraulic USD fork front suspension, with a 45mm travel, and a monoshock with progressive compound lever rear suspension with a 290mm travel. The wheels were alloy with laced spokes, with a front wheel of 1.60 x 21 and rear wheel of 2.15 x 18. The front tire was a 90/90-21 and a rear tire of 140/80-18. The front and rear brakes had single discs with a 2 piston floating caliper and 1 piston floating caliper, respectively. The dimensions of the motorcycle were 2180mm in length, 807mm in width, and 1270mm in height, with a wheelbase of 1490mm, seat height of 940mm, ground clearance of 320mm, and a dry weight of 114kg. It had a fuel capacity of 8.5L with a fuel reserve of 1L. Reviewed by Jean Turner, Motorcycle USA.

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Technical specifications:

Make Model: Beta RR 400 Enduro

Year: 2009 – 10

Engine: Four stroke, single cylinder, DOHC, 4 valves

Capacity: 398 cc / 24.3 cu in

Bore x Stroke: 95 x 56.2 mm

Compression Ratio: 12.4:1

Cooling System: Liquid cooled

Lubrication: Forced, 2 oil pumps

Engine Oil: 15W-50

Engine Capacity: 0.8 L / 0.2 US gal

Cooling System: Liquid cooled

Induction: Keihin FCR-MX 39

Ignition: DC-CDI without trembler with variable ignition timing, Kokusan type

Spark Plug: NGK LKAR 8A-9

Starting: Electric and kick

Clutch: Wet, multi-plate

Transmission: 6 Speed

Final Drive: Chain

Gear Ratios: 1st 12:31 / 2nd 15:28 / 3rd 19:28 / 4th 20:24 / 5th 27:27 / 6th 28:24

Primary Drive: 33:76

Frame: Molybdenum steel with double cradle split above the exhaust port

Front Suspension: Hydraulic USD fork, 45 mm

Front Wheel Travel: 290 mm / 11.4 in

Rear Suspension: Monoshock with progressive compound lever

Rear Wheel Travel: 290 mm / 11.4 in

Wheels: Alloy, laced spokes

Front Wheel: 1.60 x 21

Rear Wheel: 2.15 x 18

Front Tyre: 90/90 -21

Rear Tyre: 140/80 -18

Front Brakes: Single 255 mm floating disc, 2 piston floating caliper

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

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 in

Ground Clearance: 320 mm / 12.6 in

Footrest Height: 413 mm / 16.3 in

Dry Weight: 114 kg / 251 lbs

Fuel Capacity: 8.5 L / 2.2 US gal

Fuel Reserve: 1 L / 0.3 US gal

Review: Jean Turner, Motorcycle USA