Beta RR3904T Enduro
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| Beta RR3904T Enduro | |
| Manufacturer | |
|---|---|
| Production | 2015 |
| Engine | Four stroke, single cylinder with countershaft, DOHC, 4 valve |
| Compression ratio | 12.5:1 |
| Ignition | AC-CDI, Kokusan |
| Spark Plug | NGK LKAR 8A-9 |
| Transmission | 6 Speed |
| Frame | Molybdenum steel with double cradle split above exhaust port. Air filter access from the side |
| Suspension | Front: 48 mm Ø Sachs USD fork, adjustable compression and rebound, TFX technology Rear: Sachs shock w/adjustable rebound and hi/low speed compression |
| Brakes | Front: Single wave Ø 260 mm floating disc, 2 piston floating caliper Rear: Single Ø 240 mm disc, 1 piston floating caliper |
| Front Tire | 90/90 -21 |
| Rear Tire | 140/80 -18 |
| Wheelbase | 1490 mm / 58.7 in |
| Seat Height | 940 mm / 37.0 |
| Weight | 112 kg / 247 lb (dry), |
| Fuel Capacity | 8.0 L / 2.1 US gal |
| Manuals | Service Manual |
Engine[edit | edit source]
The engine was a Liquid cooled, forced by pump cooled Four stroke, single cylinder with countershaft, DOHC, 4 valve. The engine featured a 12.5:1 compression ratio.
Drive[edit | edit source]
Power was moderated via the Wet multi-disc.
Chassis[edit | edit source]
It came with a 90/90 -21 front tire and a 140/80 -18 rear tire. Stopping was achieved via Single wave Ø 260 mm floating disc, 2 piston floating caliper in the front and a Single Ø 240 mm disc, 1 piston floating caliper in the rear. The front suspension was a 48 mm Ø Sachs USD fork, adjustable compression and rebound, TFX technology while the rear was equipped with a Sachs shock w/adjustable rebound and hi/low speed compression. The RR3904T Enduro was fitted with a 8.0 L / 2.1 US gal fuel tank. The bike weighed just 112 kg / 247 lb. The wheelbase was 1490 mm / 58.7 in long.
Photos[edit | edit source]
Overview[edit | edit source]
Beta RR 4T 390 Enduro
Adventurous and fast, the Beta RR 4T 390 is a versatile
off roader powered by a single cylinder, DOHC, 4 stroke, liquid - cooled engine
with a displacement of 385,6 Cc. The engine features die cast cases and new
crankshaft, connecting rod, cylinder head and pistons.
The Beta RR 4T 390 also features a new front fork
compression piston to improve oil flow and reduce harshness, a new rear shock
piston, a handlebar pad borrowed from race edition, and a softer seat.
The engines power is kept under control by a six speed
transmission with wet multi disc clutch.
Key features: Die-Cast Engine cases (2.2 lbs. lighter) All new displacements for optimum performance and handling New crankshaft, connecting rod, cylinder head, and piston Betas ETR(Easy-To-Ride) Engine New front fork compression piston to improve oil flow and reduce harshness New rear shock piston to reduce heat Handlebar pad from Race Edition New design seat foam that is softer New graphics and color scheme
| Make Model | Beta RR 4T 390 Enduro |
|---|---|
| Year | 2015 |
| Engine Type | Four stroke, single cylinder with countershaft, DOHC, 4 valve |
| Displacement | 385.6 cc / 23.5 cu in |
| Bore X Stroke | 88 x 63.4 mm |
| Compression | 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 Ø 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 Ø 260 mm floating disc, 2 piston floating caliper |
| Rear Brakes | Single Ø 240 mm disc, 1 piston floating caliper |
| Front Wheel | 1.60 x 21 |
| Rear Wheel | 2.15 x 18 |
| Front Tire | 90/90 -21 |
| Rear Tire | 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 |