Subaru HS500

Subaru Sportsbike
By Ben Purvis
New bikes
18 November 2007 15:00

Subaru HS5001

This new single-cylinder sportsbike features a Subaru-badged engine and could be on sale next year at a bargain price.

The engine for the HS500sa comes directly from Fuji Heavy Industries, the parent company of Subaru. It’s a 499cc, water-cooled, DOHC single, originally developed to be used in quad bikes and used by Polaris. The motor is notable for its lightweight design – it tips the scales at 43kg – and its ability to meet American and European emissions restrictions, a vital part of Sasaki’s plan as he intends to sell the machine worldwide.

With 50bhp at 8000rpm, the motor is on a par with engines from more familiar manufacturers, and its 33lbft of torque, peaking at 7000rpm, should be enough to give the lightweight HS500sa decent acceleration.Subaru HS500

The bike’s chassis is built in China to keep costs down. Like most of the latest Japanese sportsbikes, it’s made from cast aluminium – although the hefty-looking frame rails look over-engineered for a 50bhp single. The swingarm is also cast aluminium, and heavily braced – giving the look of a much more powerful bike.

Sasaki has tried to produce a single cylinder sports bike before with the Horex 644 Osca, powered by a Dominator engine. Trouble was it cost £22,000 so never really caught on. Check out this link to see the history of the motorcycle and it running in someone’s garage.


Type: SUBARU ES50, Water cooled, 4stroke,1-cylinder
Bore x stroke (mm): 96x 64.6
Compression Ratio: 10.8: 1
Max. power (kW/rpm): 37.5kw/8000rpm,50.0HP
Max. torque: 39.6N.m/8000rpm
Carburetion: Mikuni BSR42
Ignition: CDI
Starting: Electric/kick
Transmission: 1-N-2-3-4-5
Drive Train: Chain
Suspension/Front: Telescopic
Suspension/Rear:Single swing arm
Brakes/Front:Dual ventilated hydraulic disc
Brakes/Rear:Ventilated hydraulic disc
Tires/Front: AT110/70-17 radial
Tire/Rear: AT160/70-17 radial

L x W x H (mm): 2,025 x 660 x 1,060
Seat Height(mm):830
Wheel base (mm): 1,395
Ground clearance(mm):208
Fuel Capacity(L):13.5
Dry Weight (kg): 168kg

Lighting : 12V35W/35W x 2(front):12V.5W/21W x 1(rear)

Sumber :


~ by scharfcshutze on May 25, 2009.

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