In terms of design and engineering, the GTS has virtually the same metal frame as the GT, but with an uprated engine, differing plastic bodywork, seat, and a new electronic instrument cluster. On paper, there seems to be little difference in performance between the two models, the GT delivering a claimed 21hp vs. 22hp for the GTS.
Most people who have owned both, however, report that the GTS is significantly quicker in acceleration, with a smoother and quieter engine. Additionally, the GTS is fuel injected (vs a carburetor for the GT) making the GTS better suited to riding in varied elevations.
The GTS has a 2.4 US-Gallon gas tank, which gives it a range of about 120 miles when ridden on the freeway, and almost 170 miles when ridden around town.
Piaggio addressed this problem in 2007 with a recall campaign. The recall procedure involved fitting an uprated clamp and a new down tube designed to deflect hot exhaust gas away from the brake line instead of toward it. The gasket itself is still prone to failure, but the result is less catastrophic than prior to the recall.
The exhaust issue was somewhat exacerbated by the fact that replacing the rear tire on the GTS requires removal of the exhaust. Some dealers (and shade-tree mechanics as well) opted to separate the exhaust from the down tube to remove the exhaust, rather than the proper procedure of removing the down tube at the header. Failure to replace the exhaust gasket during this operation (the gasket is considered a one-time-use item) would further increase the likelihood of exhaust failure down the road.
Since the recall campaign took place, far fewer incidents of exhaust failure have been noted here on Modern Vespa. This probably indicates that the uprated clamp, combined with increased awareness of the problem on the part of mechanics, has reduced the prevalence of the problem.
Video - GTS Battery Replacement
VIDEO - GTS300 Coolant Flush / Change Tutorial
Video - GTS Front wheel remove / install
Video - GTS inner legshield removal / installation
Video - GTS Rear Wheel Removal / Installation
Video - GTS Exhaust Removal / Installation
Video - EASY Clutch Nut Removal WITHOUT Compressor Tool!
GTS Brake Fluid Flush
GTS Fuel Pump Replacement
GTS Oil Change
GTS Rear Hub Oil Change
GTS Throttle Cable Adjustment
GTS Valve Lash Adjustment
Video - Dr Pulley Sliders Install
Video - GTS-CVT (drive belt/variator) Removal / Installation
Variator & Belt change - Pictures from MV workshop
Adjusting steering head bearings on a 250 GTS
GTS Exhaust Bulletin
GTS Exhaust Recall Notice
Official GTS Specification
GTS 250: Torque Settings
GTS250ie : Electrical Diagram and Components
GTS250ie : Electrical Power Budget
GTS250ie : Wire insulation color codes
GTS250ie : Alarm Connector pin assignments
GTS250ie : Weight, Balance, and Center of Gravity
|ENGINE TYPE||Single cylinder, four-stroke, four-valve, electronic injection, catalytic|
QUASAR (QUArter liter Smooth Augmented Range)
|BORE x STROKE||2.8" x 2.36" (72 mm x 60 mm)|
|MAX POWER at SHAFT||16.2 kW at 8,250 rpm (22 CV)|
|MAX TORQUE||20.2 Nm at 6,500 rpm|
|MAX SPEED||76 mph (122 km/h)|
|FUEL / TANK CAPACITY||Unleaded minimum 91 octane / 2.4 gallons (9.2 litres)|
|GAS MILEAGE||65-70 mpg*|
|DISTRIBUTION||Chain driven SOHC (single overhead camshaft)|
|LUBRICATION||Wet sump, chain-driven lobe pump, filtration during aspiration and discharge|
|IGNITION||Electronic (with inductive discharge, variable spark advance and three-dimensional mapping)|
|GEARS CVT||(Continuously Variable Transmission) with torque server|
|CLUTCH|| Automatic centrifugal dry clutch with dampers|
|CHASSIS||Load-bearing sheet steel chassis with welded structural supports|
|FRONT SUSPENSION||Single-sided trailing arm with dual chamber hydraulic shock absorber with coaxial spring|
|REAR SUSPENSION||Helical spring with adjustable four-position pre-load and two dual effect hydraulic shock absorbers|
|FRONT BRAKE||Ø 8.66" (220 mm) disc|
|REAR BRAKE||Ø 8.66" (220 mm) disc|
|FRONT TIRE||Tubeless 120 / 70, 12"|
|REAR TIRE|| Tubeless 130 / 70, 12"|
|LENGTH||76" (1,930 mm)|
|WIDTH||29.7" (755 mm)|
|WHEELBASE||54.9" (1,395 mm)|
|SEAT HEIGHT||31.1" (790 mm)|
|DRY WEIGHT||326 lbs (148 kg)|
|TYPE-APPROVAL|| EPA and CARB|