Beta Alp 4.0
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| Beta Alp350 | |
| Manufacturer | |
|---|---|
| Also called | Alp 4.0 |
| Production | 2003 - 04 |
| Engine | Four stroke, single cylinder, SOHC, 4 valves |
| Compression ratio | 9.5:1 |
| Top Speed | 131.1 km/h / 81.5 mph |
| Ignition | Electronic |
| Transmission | 6 Speed |
| Frame | Tubular steel, double closed cradle |
| Suspension | Front: Hydraulic fork, 48mm Ø Rear: Single shock adjustable spring preload |
| Brakes | Front: Single 260 mm Ø disc, 2-piston caliper Rear: Single 220 mm Ø disc, 2-piston caliper |
| Front Tire | 90/90 -21 |
| Rear Tire | 140/80 -18 |
| Wheelbase | 1410 mm / 55.5 in |
| Seat Height | 865 mm / 34 in |
| Weight | 133 kg / 293 lbs (dry), |
| Fuel Capacity | 10.5 Liters / 2.8 US gal |
| Fuel Consumption | 5.6 L/100 km / 17.7 km/l / 41.6 US mpg |
| Manuals | Service Manual |
It could reach a top speed of 131.1 km/h / 81.5 mph.
Engine[edit | edit source]
The engine was a Air cooled cooled Four stroke, single cylinder, SOHC, 4 valves. The engine featured a 9.5:1 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 260 mm Ø disc, 2-piston caliper in the front and a Single 220 mm Ø disc, 2-piston caliper in the rear. The front suspension was a Hydraulic fork, 48mm Ø while the rear was equipped with a Single shock adjustable spring preload. The Alp 4.0 was fitted with a 10.5 Liters / 2.8 US gal fuel tank. The bike weighed just 133 kg / 293 lbs. The wheelbase was 1410 mm / 55.5 in long.
Photos[edit | edit source]
Overview[edit | edit source]
Beta Alp 4.0
The Beta Alp is available in two 350cc versions, one looking like a trials machine, the other a Supermoto. If you are keen on trials then the slightly lighter Alp 200 might be enough for you, but the Beta Supermoto 350 makes a decent commuter/weekend fun bike, although it's a tad expensive for something using a fairly old tech 350 motor. The Beta Alp Supermoto has long travel suspension and you sit quite high up - it has an 870mm seat height by the way - which gives you confidence in urban traffic. You can hustle this motorcycle through jams Monday-Friday no problem and the Supermoto comes with some classy spoked alloy wheels too. There's nothing wrong with the Beta Alp's old 350 Suzy lump, in fact it's renowned amongst off-roaders as one of the toughest engines you can hammer through a swamp all day long. But the motor can be a bit buzzy above 60mph and there's a fairly low top speed to be had, which makes you wonder why Beta didn't get a deal sorted for the newer Suzuki DRZ400 motor instead.
You cannot fault the Beta Alp's Suzuki engine - that will probably outlast the next ice age. There's also something to be said for choosing a motorcycle built within the EU instead of one of the many low budget Chinese trail bikes which can be had for peanuts off the internet. The Beta Alp 4.0 Trail looks pretty basic as you might expect and although there's no mirrors on it, you do get a front mudguard, although what use that would be in a muddy stream is anyone's guess. The Supermoto version has the same basic layout; no mirrors, dinky indicators and small headlight/nose fairing and both versions have a matt black exhaust which looks like it might suffer corrosion if not kept scrupulously clean.
| Make Model | Beta Alp 4.0 |
|---|---|
| Year | 2003 - 04 |
| Engine Type | Four stroke, single cylinder, SOHC, 4 valves |
| Displacement | 349 cc / 21.3 cu in |
| Bore X Stroke | 79 x 71.2 mm |
| Compression | 9.5:1 |
| Cooling System | Air cooled |
| Induction | Mikuni BST 33 |
| Ignition | Electronic |
| Starting | Electric |
| Max Power | 20 kW / 27 hp |
| Max Torque | 28 Nm / 2.9 kgf-m 21 lb-ft |
| Clutch | Wet, multi disc |
| Transmission | 6 Speed |
| Final Drive | Chain |
| Frame | Tubular steel, double closed cradle |
| Front Suspension | Hydraulic fork, 48mm Ø |
| Front Wheel Travel | 200 mm / 7.9 in |
| Rear Suspension | Single shock adjustable spring preload |
| Rear Wheel Travel | 220 mm / 8.7 in |
| Front Brakes | Single 260 mm Ø disc, 2-piston caliper |
| Rear Brakes | Single 220 mm Ø disc, 2-piston caliper |
| Wheels | Alloy, laced spokes |
| Front Tire | 90/90 -21 |
| Rear Tire | 140/80 -18 |
| Dimensions | Length: 2185 mm / 86.0 in Width: 860 mm / 33.9 in Height: 1230 mm / 48.4 in |
| Wheelbase | 1410 mm / 55.5 in |
| Ground Clearance | 300 mm / 1.8 in |
| Seat Height | 865 mm / 34 in |
| Dry Weight | 133 kg / 293 lbs |
| Fuel Capacity | 10.5 Liters / 2.8 US gal |
| Fuel Reserve | 3.5 Liters / 0.9 US gal |
| Fuel Consumption | 5.6 L/100 km / 17.7 km/l / 41.6 US mpg |
| Standing ¼ Mile | 16.1 sec |
| Top Speed | 131.1 km/h / 81.5 mph |
| Review | Motorcycle News |