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Technical Data

Whole motorcycle		Power system		Suspension system
Length (mm)	1976	Body	Aluminum alloy	Frame system	High-tensile steel
Width (mm)	773	Cylinder number	Single cylinder	Tire structure	Radial tire
Height (mm)	1052	Camshaft system	Double-top camshaft(DOHC)	Front rim size	3.0×17
Wheelbase (mm)	1384	Bore X Stoke (mm)	73 x 59.5	Rear rim size	4.5×17
Net weight (kg)	144	Cooling system	Wind and oil cooling	Front tire size	110/70R17
Full load (kg)	154	Fuel tank	Gas	Rear tire size	150/55R17
Ground clearness (mm)	188	Compression ratio	10.4:1	Front brake size	ABS\plate brake
Fuel tank volume (L)	13	Displacement(ml)	249	Rear brake size	ABS\plate brake
Seat height (mm)	780	Oil supply form	Automatic fuel injection	Headlight/taillight/turning signal light	LED
		Fuel injection system	Delphi
		Ignition system	CDI
		Transmission system	Oil sealing chain
		Idling speed (r/min)	1500 ± 100
		Maximum power (kW/rpm)	18 / 8000
		Maximum torque (N.m/rpm)	23 / 6500
		Maximum speed (km/h)	145
		Transmission	variable speed constant tooth type six
		Gear	International gear
		Clutch	Wet type multi-pieces
		Economical consumption of fuel (L/km)	2.8 /100

Exquisite style

In order to achieve a sense of unified entity, the whole motorcycle adopts the design of screw-free installation. The soft sponge of the cushion which is formed into a sharp angle through the advanced internal foaming technology connects with the gasoline tank seamlessly. The assembly clearances of all covering parts are less than 0.5 mm. The premise of such process requirement, which is even rarely seen in the automotive field, is that the deformation amount of the frame after welding is almost zero.

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Wonderful technology and brilliant design

Ingenious headlamp with cover

Transformer appearance The LED design is adopted for all lamps of the motorcycle, reducing the storage battery load and improving the penetration length in the dark. The ZT250-S headlamps can greatly lower down the lighting efficiency attenuation of traditional lamps after long-term usage.

Pretty color assortment

In order to avoid the discoloration and the peeling off of the applique due to sun exposure, split-type parts are designed, painted separately and combined as an integrated part for areas on ZT250-S which should be appliqued, which not only is texturally beautiful, but also makes it easier for consumers to change their favorite color combinations.

High-tech gasoline tank design
	Double galvanized sheet inner gasoline tank The inner liner is made by double-layer galvanized sheet to prevent the gasoline tank from rusting.
Elaborately developed dull polish paint The dull polish paint developed for ZT250-S for 3 years is much more resistant to oil and corrosion than other varieties in the market, and sprayed by robots under the sealed environment during the whole process only for the distinctive colors which are unforgettable.

360-degree positioning rotary rearview mirror

Cyclists won't be bothered by constantly adjusting bilateral symmetry for the rearview mirror thanks to the ingenious 360-degree positioning rotary design.

All-liquid crystal display intelligent digital controller
	Intelligent digital controller Fashionable and distinctive speed indicators are progressively-arranged on the all-liquid-crystal intelligent digital controller which is clear at a glance. The traditional mechanical front wheel speed line output structure is abandoned, and the intelligent processing based on the advanced electronic sensor combined with the controller chip is adopted, which not only can display accurately and react fast, but also is more dust-proof, waterproof and weatherproof.
Central control anti-theft lock The central control anti-theft lock with integrated design located in the center of the motorcycle head can open and close the gasoline tank cover and the anti-theft lock cover, and operate the front lock, the seat cushion lock and the ignition switch, which is very convenient for usage.

The spacing of the rearview mirror is widened so that the line of sight is not blocked by shoulders

Brand new handlebar switch visible at night
	Backlight handlebar switch Safer and more accurate cycling at night. The switch button is enlarged The switch will not be accidentally pressed by cyclists wearing thick cotton gloves when cycling in winter.
Handlebar rocker arm The brand new opening-adjustable, foldable and shatter-resistant handlebar rocker arm is more user-friendly.

Cancel the engine oil pot: alternatively, the engine oil is filled at the outside of the right cover of the engine, which is easy for change.

The forged piston fitted with newly designed cam valve train
	Newly designed piston crankshaft mechanism Newly designed structures of the cylinder head and the piston crankshaft mechanism greatly reduce the vibration of the engine and reduce the noise of the engine end. The light-weighted cylinder head mechanism significantly improves the acceleration performance.
Newly designed cylinder head structure

Fuel tank is enlarged:Full tank capacity is up to 13 litres

Cyclist-centric design concept
	Comfortable cushion Compared with the traditional process that the sponge is formed and then wrapped by the outer skin, it is a breakthrough to adopt the advanced technology that the outer skin is formed and then filled with the sponge foam. This kind of angular and exquisite cushion neither wrinkled nor deformable, is a configuration which is only possible for the imported motorcycle with a price over RMB100,000.
Central rear shock absorber The design of built-in air bag filled with high pressure nitrogen is adopted for the central rear shock absorber to reduce the hydraulic oil temperature; it can provide greater restoring damping force when cycling at high speed, while the high-pressure nitrogen in the air bag can also change the air spring characteristics inside the shock absorber; improve the cycling comfort and the feeling of fatigue during long-distance travel.

Super-wide tire

The wide tire is an important symbol of the racing bike. The 150 wide tires with a flat rate of only 55 are standard configuration for ZT250-S, which is even rare for modified motorcycles on the racing track. The weight is significantly reduced by the hollow aluminum alloy wheels, which improves the startup acceleration performance. Both the front and the rear tires are special radial tires for the racing track, with good road holding and anti-deformation performance.


	High-strength aluminum alloy rear fork The integrated forming makes it easy for the cyclist to control the motorcycle.
Newly designed aluminum alloy rear fork

Uniquely designed rear license plate bottom case

When the license plate bracket is installed on the rear water baffle, the original bracket mounting hole under the rear seat can be sealed, which is beautiful and seamless.


	New rear water baffle (optional) It can be adjustable with the front and the rear of the tire simultaneously, and fitted with a rear license plate bracket with a steering lamp
Integrated inner water baffle and chain case cover The splash-proof function is greatly improved.


	High-strength internal circulation oil-cooling frame The entire frame welded by robot and made of high-strength steel because there should be no crack on the frame even if being impacted since the engine oil is pumped into the frame for heat circulation.
New vibration-free internal core balance block Block the transmission of the motorcycle vibration onto the arm

It is equipped with the latest Bosch (German) ABS model 9.1M

The cyclist can be free from all inhibitions even braking at the curving area since the motorcycle with fuel tank has been tested 10 months on various roads such as sandy and sleet roads.


	New and enlarged oil-cooling radiator The heat dissipation area is expanded by 30% to greatly improve the engine oil cooling efficiency.
New chain abrasion-proof block It not only is more wear-resistant and durable, but also prevents knocking when the chain is stretched

Fully-automated robot welding

The fully-automated robotic welding combined with low-spatter fusion welding technology which not only eliminates the welding deformation of the frame, but also makes the internal of the tube clean and slag-free, forming a clean and natural engine gasoline tank for ZT250-S.


	New major and minor sprockets Change the transmission ratio of the major and minor sprockets to improve the responsiveness of the motorcycle during gear shifting at low speed
New air filter The newly designed air filter has no intake echo.

Strong power

High performance oil-cooling engine


Based on the concept of high performance and fuel economy and durability, a low-speed and high-torsion oil-cooling engine is tailored for ZT250-S. When the engine runs at a low speed of 5,000rpm, the motorcycle speed can be up to 85km/h. and the economic fuel consumption of 100km at a constant speed of 60km/h is only 2.8 liters. The emission of ZT250-S can easily meet the high standards of TUV EU certification thanks to the double overhead camshaft four valves with the Delphi EFI system which significantly improve the motorcycle's startup performance at low temperature, obtaining authentication certificate from the German Ministry of Transportation.	The traditional mode of lubrication that the lubrication oil is splashed by the gear is replaced by the mode of injection lubrication that areas which should be lubricated are directed sprayed by the high-pressure oil through the oil pump thanks to the unique dual-oil-pump design. After that, the hot oil in the engine is pumped into the frame for external circulation of heat dissipation, which reduces the engine temperature to a greater extent and significantly extends the engine life. The ZT250-S engine adopts the technology of all-aluminum cylinder without liner, which enables homogeneous-material thermal expansion amount between the cylinder wall and the piston, thereby eliminating the noise of the piston striking the cylinder wall after the warm up process; the ultra-thin cylinder wall is also more conducive to heat dissipation. New designs, such as the built-in balance shaft, the external engine oil strainer, the low-damping air filter, and the stainless steel silencer, etc. redouble the highlights of the super ZT250-S engine.


	Technology of all-aluminum cylinder without liner The ZT250-S engine adopts the technology of all-aluminum cylinder without liner, which enables homogeneous-material thermal expansion amount between the cylinder wall and the piston, thereby eliminating the noise of the piston striking the cylinder wall after the warm up process; the ultra-thin cylinder wall is also more conducive to heat dissipation.
Start the mechanism of decompressor The motor load is higher when the engine without a pressure reducing valve is started. When the engine with a pressure reducing valve is started, the top column of the closed pressure reducing mechanism opens the exhaust valve slightly, and the start-up mechanism does not need to compress the gas in the cylinder. The start-up load is smaller and it is easier to start the engine. When the engine roars, the pressure reducing valve is open and the top column is retracted, which does not affect the normal operation of the engine. Advantages: the startup resistance of the engine, the abrasion of the parts of the startup mechanism, and the energy consumption of the instantaneous power supply of the storage battery are reduced, and it is easier to start up the engine under the cold state.

Why does the Shengshi ZONTES 250-S engine speed up fast?

ZT250-S engine

The running resistance of the components is very small because there is no engine oil sump in the gearbox of the ZT250-S engine. It greatly improves the acceleration performance, which is the "dry oil sump" design that only the motorcycle on the track has. The principle: after the motorcycle is started, the scarce engine oil in the gearbox is pumped out by the oil pump A immediately, and enters the frame pipe for circulating heat dissipation. The cooled oil after heat dissipation is pumped back to the countless injection channels specially designed for the engine by the oil pump B, and sprayed at each part for heat-removing directly like the shower head.

Ordinary engine

Components operated inside the ordinary engine gearbox are immersed in the engine oil sump. The running resistance is extremely large due to the viscous nature of the engine oil, like running in the water, which is slower than that in air. The oil is more viscous and the engine acceleration performance will be significantly impacted, especially in the winter.

ZT250-S 21 new upgrades