SUNTEX RUBBER ENTERPRISE CO., LTD.

FAQs

What should you pay attention to when selecting tyre?
The tyre of the passenger car depends on the customer's need, can be divided into basically:
  1. Comfortable passenger car tire (or general passenger tyre): Pay attention to the comfort.
  2. Ultra High Performance tire: Pay attention to the performance and good traction.
To ensure safety aftertyre installation pleases watch for load index number and speed marking.

SUV, jeep and 4x4 depends on the condition road and drivers. Generally speaking, there are three kinds of:
  1. Suitable for mud terrain: 20%, 80%.
  2. Suitable for every kind of situation on road: 50%, 50%.
  3. Suitable for more Highway driving: 80%, 20%.
The tyre size chooses with original factory size, generally speaking, if widen and reduce flat ratio as: tread 195 65 15→205 width 60 15: It is good to change circumference too much.
How the tread to develop the effect while driving ? (wet traction and the transmission of traction)
  1. According to wet traction forces:The most suitable tread for roads in Taiwan is about 30% groove and 70% heavy rocky shoulder pattern.
  2. Depends on the degree of quietness/ noise of the tyre. In order to reduce the noise while driving, the design of tread is designed to change the audio frequency and to reduce the noise.
  3. The asymmetry designs, considering the average pressure of wearing while driving and to avoid partial wearing.
  4. The single direction tyre leads the power better and attractive feature.
How to maintain the tyre simply? ( The tyre maintains in every aspect view)
  1. The regular check for every month.
  2. Adjust the tyre in good time: In order to make tyre worn equally, reduce the partial wearing.
  3. The PRP repair patch, although the price is higher, but it can be more completely repair.
  4. Notice some tyre mainteance items sold in market may cause tyre damage.
  5. Air vavel replacement.
Affecting the function and securities carries the heavy index number and speed index numbers represent these datas- carry the heavy index and speeds representative as most cars tyre side marking of a part. This form provides to carry the heavy index and speed code numbers to correspond the number.
Load Index Loading (kg) Load Index Loading (kg) Load Index Loading (kg) Load Index Loading (kg) Load Index Loading (kg) Sign of tire / Speed sign km/hr Maximum speed
6226575387885601018251141180J100
6327276400895801028501151215K110
6428077412906001038751161250L120
6529078425916151049001171285M130
6630779437926301059251181360P140
6731580450936501069501191400Q150
6832581462946701079751201400R160
69335824759569010810001211450S170
70345834879671010910301221500T180
71355845009773011010601231550T190
72345855159875011110901241600T210
73365865309977511211201241650V240
74375875451008001131150W270
Y300
VR>210
ZR>240
The load capacity of car tyre
All tyres show the maximum loading per tyre and corresponding tyre pressure as well.The tyre speed code numbe of Q, R, S, T and H point the maximum safety speed at maximum load capacity.

Note:
  • The speed code number ofＶＲ, means the maximum speed per hour is 210 kilometers. The maximum load capacity is calculated by setting 210 kilometers per hour. If the speed per hour higher than 210 kilometers, please check with tyre manufacturer for load capacity.
  • The speed code number ofＺＲ, means the maximum speed per hour is 240 kilometers. The load capacity is calculated by setting 240 kilometers per hour. If the speed per hour higher than 240 kilometers, please check with tyre manufacturer for load capacity.
  • The speed code number of V, the speed per hour can reach 240 kilometers per hour. The load capacity is calculated by setting 210 kilometers per hour. If increae the speed per hour to 240 kilometers, then every 10 kilometers per hour loading capacity needs to decline by 3%.
  • he speed code number of W(in spite of having the marking of ZR), the speed per hour can reach to 270 kilometers. The load capacity is calculated by setting 240 kilometers speed per hour. If increae the speed per hour to 270 kilometers, then every 10 kilometers per hour increased in speed will decline 5%.
  • The speed code number of Y( in spite of having the marking of ZR ), the maximum speed per hour can be calculated setting by 300 kilometers . The load capacity is calculated by setting 270 kilometers speed per hour. If increase speed to 300 kilometers per hour, then the loading capacity needs to reduce 5% for every10km/hr.
The usage of the tyre and mainteance
The tyre is the only part of vehicle that contact with ground. Making the car safety is to depend on this few contact very much. The tyre needs to be kept best condition and be installed suitable specification.
The car manufacturers respond to suitable specification for safety operation. Please consult tyre expert before change of tyre size, types, and speed limits.
The tyre installs and dismantles to unload
Can only be done by experts with proper tools and training. The inaccurate tyre load might lead to serious accident, or damage to tyre, inner tube or rim.
Air pressure
The proper tyre presses, is critical to vehicle safety The low air pressure will lead to produce excessive heats, at the same time, might came unrecoverable damage to tyre and accelerates the air leak.
Tyre damage caused by low air pressure usually will not appear immediately, even the damage appear when driving with right air pressure.
The tyre pressure need to be check every teo weeks regularly as well as spare tyre. The check needs to be done when tyre temperature is cooling off.
Please do not release air while tyre is still warm
The air pressure after cooling off of should often correspond with the inference from manufacturer. (Unless in some kind special situation; for example, trailer).
Refer to the air pressure of Michelin.
Maximum loading and speed
Most tyres all carry the load index, and speed code number.
Example: Tyre 78T- At the most high speed, 190 kilometers per hour can load 425 kilograms.
Consult the tyre expert to ensure legal tyre installation. The speed of snow tyre may be slower than spare tire. The anti-skid nail usage may be subjected to the local legal statutes control.
Often check the tyre, notice the following important points
  • depth of tyre tread: check unusual wears, wound, the deformed portion and other stuffs(as rock, nail etc.)
  • shoulder pattern: check the wound, crack and injures by bumping to split(stone ,pit...etc.), chafing and out of shape.
Extraordinary while driving: Strong vibration, left or inclined to the right etc, these all need to be checked as soon as possible. If the tire pressure towards too low, driver should park the car as soon as possible and dismantle tyre and find out the reason. Consult with the expert.Maintenance must under the process of profession. When repairing without inner tire tyre, remember to check the inner part of tyre.
Tyre Replacement
Often check the depth of tyre tread. The tyre with tread depth indicator could show whether the tyres have been worn out or not. Tyre without entread would have been the high risk of slipping at wet ground.
If change two tyres, the best way is to install the new or less worn tyres at back axle. Inquire the tyre while install used tyres.
To ensure safety, please use new inner tube while replacing a tyre. If it is a tubeless tyre, please uae new air vavle while changing he new tyre. Tubeless tyre should use suitable size of rim.
Mix to install the tyre
Besides special condition and temporary use of the tyre, tyres on the same axle must meet the same type and specifications. If the vehicle install the radiate tyre at front axle, don't install the cross cord ply tyre at back axle.
Facts influence the life of tyre
In addition to above factors, the tyre life is also influenced by the followings:
  • Speed and road condition: The tyre rolling based on 120 kilometers per hour, the speed of wearing is two times than the tyre's rolling based on 70 kilometers per hour.
  • Environment temperature: the wear of tyre is also influenced by the surrounding temperature.
  • Overload: When overload 20%, the life of tyre will reduce 30%.
  • Low tyre pressure: If tyre air pressure is below 20% of required pressure, the life descends 30%.
  • Vibration: high speed rolls over pit, rock and other stumbling blocks, all cause the damage to the tyre, but usually not happen immediately Detection.