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Vespa adds stop-start tech to save fuel

2017 Vespa GTS 150 with stop-start technology
2017 Vespa GTS 150

The new Vespa GTS scooter range includes stop-start technology to switch off the engine when stationary and automatically restart when the brake is released.

Stop-start technology has been used in many cars for several years now and was introduced by Honda on the PCX 125 scooter in 2010.

Honda PCX 125 with stop-start technology
Honda PCX 125 with stop-start technology

Yamaha has added it to their Janus 125 scooter specifically for the Vietnamese market.

We are bound to see more of this type of technology filtering through to other scooters and even motorcycles.

Do we need stop-start?

Do we really need stop-start technology in motorcycles?

Since filtering was made legal we don’t stop for as long as cars in heavy traffic and we don’t see the point of adding extra expense to a bike or scooter for the minimal economic advantages.

Stop-start technology also requires more powerful and expensive batteries and starting system with uprated starter motors, solenoids, alternators and more. All of this adds to the price of the vehicle.

If it were added to bigger bikes, the extra wear and tear on the crankshaft may also reduce the lifespan of the bike.

If you are really that worried about fuel economy, the starter button is right by your thumb, so you could easily switch off at the lights and fire up again when they change.

With modern EFI engines, they start quickly and don’t waste fuel.

WHY DO MOTORCYCLES HAVE LOW ECONOMY

However, we don’t recommend that if you are lane filtering as you need to get away promptly before being swamped by traffic. That momentary lapse to restart your bike could be a little dangerous.

Vespa also gets GTS traction control

2017 Vespa GTS300 with stop-start technology
2017 Vespa GTS300

The classic Vespa GTS comes in 125cc, 150cc and 300cc versions, but we won’t be getting the 125cc model.

The GTS 300 includes traction control which seems ludicrous as it has just 15.6kW of power.

The first scooter with electronic traction control was the Aprilia SRV 850, but now many others scooters have the feature, including the Piaggio BV350 and MP3 500.

We believe that the Vespa GTS 300 is the smallest yet to have traction control.

However, with a 130mm rear tyre on a tiny 12-inch wheel, it could be handy on oil-soaked wet city streets to prevent wheelspin.

 

Standard features

These features are standard on all GTS models:

  • remote opening saddle;
  • “Bike Finder” button on the keyfob that activates the indicators so you can find your bike in a crowded carpark;
  • a USB charging port, in the compartment of the leg shield;
  • front indicators have LEDs that act as daytime sidelights; and 
  • digital instruments with a classic round speedometer and a digital screen showing fuel level, clock and two trip meters.

The GTS Super also features black rims with diamond-shaped finish and double-upholstered saddle with clasp. It comes in black, red, white and a new green. The others come in white, grey, green and yellow.

They arrive later this month at $7490 (plus on-road costs) for the GTS 150 i-Get ABS which is an increase of $900 over the previous model.

Surprisingly, the GTS 300 Super ABS ($9290) and the GTS 300 Super Sport ABS ($9590) cost $100 less than before.

Accessories 

2017 Vespa Sprint Sport with accessories and stop-start technology
2017 Vespa Sprint Sport with accessories

The GTS range has a wide range of accessories such as a colour-coded top box that fits a full-face helmet and has a padded back rest.

The most requested accessories are the chrome front and rear luggage racks.

There is also a chrome perimeter guard kit, thermal leg cover, mechanical and electronic anti-theft devices, luggage rack straps, and a “Country & Leisure” travelling rug.

Vespa GTS 150 – Technical Specifications

ENGINE
Type Single cylinder, 4-stroke Piaggio i-get with “Start & Stop” system
Engine capacity 124.7 cc 155.1 cc
Bore x Stroke 52 mm / 58.7 mm 58 mm / 58.7 mm
Max power at crankshaft 9 kW /8,250 rpm 10.8 kW /8,250 rpm
Max Torque 11.5 Nm/ 6,000 rpm 13.5 Nm/ 6,750 rpm
Fuel system Electronic injection
Ignition Electronic, with variable advance
Cooling system Liquid
Lubrication Wet sump
Gearbox CVT with torque server
Clutch Automatic centrifugal dry clutch
VEHICLE
Load Bearing Structure Sheet metal body with welded reinforcements
Front suspension Single arm fork with coil spring and hydraulic control
Rear suspension Double hydraulic shock absorber with four-position spring pre-load adjustment
Front brake Hydraulically operated 220 mm stainless steel disc
Rear brake Hydraulically operated 220 mm stainless steel disc
Braking system Two-channel ABS system
Front tyre Tubeless 120/70 – 12″
Rear tyre Tubeless 130/70 – 12″
DIMENSIONS
Length/Width 1,950/740 mm
Wheelbase 1,350 mm
Kerb weight 140 kg
Fuel tank capacity 7 (± 0.5 )  litres

Vespa GTS 300 – Technical Specifications

ENGINE
Type 4-stroke single cylinder, 4 valves, electronic injection
Displacement 278.3 cc (278 cc for China only)
Bore x Stroke 75 mm x 63 mm
Max Power at crankshaft 15.6 kW (21.2 HP) at 7,750 rpm
Max Torque 22 Nm at 5,000 rpm
Fuel system P.I. injection (Port injected)
Ignition Electronic with variable advance
Cooling system Liquid
Lubrication Wet sump
Gearbox Twist-and-go CVT with torque server
Clutch Automatic centrifugal dry clutch
VEHICLE  
Bearing structure Sheet metal with welded reinforcements
Front suspension Single arm suspension with coil spring and hydraulic shock absorber
Rear suspension Double hydraulic shock absorbers with adjustable preload with 4 settings
Braking system Two-channel ABS system/ ASR
Front Brake Hydraulically operated 220 mm stainless steel disc
Rear Brake Hydraulically operated 220 mm stainless steel disc
Front tyre Tubeless 120/70 – 12″
Rear tyre Tubeless 130/70 – 12″
DIMENSIONS  
Length/Width 1950/755 mm
Wheelbase 1375 mm
Kerb weight 160 kg
Fuel tank capacity 8.5 (± 0.5 ) litres
  1. Hello Mark,you are absolutetly correct with all you have said about stop start technology,I drive a VW with Blue Motion ,it currently gives me an extra day of running per week compared with my last vehicle same brand without stop start,which annually is good for my bottom line as it is used for business purposes. However even though I like the technology and the ideas behind it ,l have found it at times frustrating in the same scenarios you have mentioned and even when trying to merge into traffic, hill starts and even when you just need to roll on quickly inadvertantly if you have come to a momentary stop it can switch off, frustrating in a vehicle but I believe very dangerous for a rider,so I agree with your opinion that it is not needed on bikes and scooters, thanks for your excellent article as always.

  2. I don’t know about the Vespa, but my Honda PCX doesn’t have a starter motor or alternator. The flywheel itself is a brushless motor that performs both functions so it’s actually less complex than the old-fashioned design.
    The restart process is so quick and smooth that it hardly makes sense to think of it as “stopped -> starting -> running” but rather “stopped -> moving”.

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