Semi Slick Product SP-01R

Product Introduction

The wear resistance index is 80, and the appearance design is almost the same as SP-01. The difference is that we can see a more aggressive R on the tire sidewall.
Due to the technology of racing tires, a more rigid formula is used, so as to obtain a faster and more accurate handling response, which makes the R have better performance. Because racing bead technology means that the pressure on the carcass and sidewall of the tire can be evenly distributed during use, thereby reducing the sharp drop in performance and maintaining the structural integrity of the tire under high load or high speed conditions. Therefore, SP-01R can maintain better stability at high speed, and can maximize the performance of the vehicle and enhance the driving pleasure.

Semi slick Product SP-01R	Size	Rim width		Overall Diameter	Section Width	Tread Width
Semi slick Product SP-01R	Size	recommed	Optimum	mm	mm	mm
	195/50R15	5.5-7.0	6	577	201	197
	225/45R17	7.0-8.5	7.5	634	225	210
	235/45R17	7.0-9.0	8	644	236	218
	235/40R18	8.0-9.5	8.5	645	241	224
	245/40R18	8.0-9.5	8.5	653	248	232
	255/35R18	8.5-10.0	9	635	260	239
	265/35R18	9.0-10.5	9.5	643	271	252
	285/35R18	9.0-11.0	10	675	290	270
	235/35R19	8.0-9.5	8.5	647	241	224
	245/35R19	8.0-9.5	8.5	655	248	232
	265/30R19	9.0-10.5	9.5	643	271	253
	285/35R19	9.0-11.0	9.5	678	278	262

Characteristics And Performance

Technical chart

Control

Surface

Structure

Contact patch

Groove

Performance

Grip

Braking

Handling

Cornering

Traction

Introduction to technical indicators
Tread width:	195~305	Speed level:	V,W
Aspect ratio:	30~55	UTQG/Grip level:	80/180/AA/A
Rim:	15~19

Design And Conception

Competitive Pattern Design

The new competitive SP-01 pattern design makes the product suitable for both track scenes and road driving needs.

Composite Technology

Tire structure layer

The new fram it makes whole tire more stronger have less tist when car accelerating braking and comnering.The new frame significant reduce the risk ofpuncture from low tire pressure.

Real Shot Display

265/35R18 Competition Tire Size Marking
Section Width, C (mm)	265
Aspect Ratio	35
Radial and speed grade ≧ 240KM	R
Rim Diameter（inch）	18

Technical Support

Tire Use

Rubbercraft racing tires are specially designed and compounded solely for the purpose of motorsports competition.The use of racing tires on public roadways which is expressly prohibited,and may result in loss of traction,unexpected loss of vehicle control,or sudden loss of tire pressure,possibly resulting in serious injury or death.No warranty is given on rubbercraft racing tires due to the limited conditions under which they operate and rubbercraft shall not be liable for damage arising from false use.

Tire Care

Tires should be stored in a controlled environment with cool temperature and in darkness.High temperature,direct sunlight,proximity to high voltage electric motors or welders should be avoided.The use of chemical treatments such as tire “soaking” or tread “softener” to alter the tire carcass or tread compound of any rubbercraft racing tire may result in premature or catastrophic tire failure and serious injury or death.

Tire Fitting

Tire fitting of racing tires should be always carried out with special care to avoid dmage to the bead area which is of critical importance in ubeless tires.In order to assure of safety,you should always have your tires mounted at a certified dealership that knows how to handle tires made for competition.The use of tire fitting machine is strongly recommended to avoid damage to wheel or tire.Tires should not be inflated over 40psi(2.7bar).The use of Rubbercraft racing tires on wheels that do not meet industry standards can cause the tire and the wheel assembly to fail and explode with force sufficient to cause serious injury or death.

Mounting

Rubbercraft tire should be mounted and installed on the car according to the directional arrows on the sidewall after on or two heat cycles, the tire can be rotated on the car. Worn tire can be dismounted and flipped on the wheel to extend tread life

Scuffing

The longevity and consistency of the grip level can be increased by properly scuffing a new set of racing tire. It is very important not to run hard for an entire session on new tires. Think of it like breaking in a new engine, or bedding in new brakes to scuff a set of tires, start by taking one or two moderately paced laps to gradually bring the tires up to operating temperature, and than run one hard lap followed by a cool down lap. The ideal situation would be to stop and remove the tires from the car ,and allow them to cool down to ambient temperature before running them again. When running an entire session on a new set of tire without stopping.one should still follow the scuffing procedure at the beginning of the session before turning laps at a fast pace. It’s also very important to run a slower lap at some point in the middle of session to allow the tire to cool off before running hard laps again.

Pressure

Moisture inside of a tire can cause excessive pressure build-up and handling problems. After purchasing a new set of mounted tires, the valve cores should be removed to purge out any moisture, and the tire should be inflated with dry air or nitrogen. When switching from another brand of tires to rubbercraft tires .it is not necessary to change cold or hot inflation pressures. Start with the same settings , and approved R-compound road racing tires is 40 PSI. it could be a few pounds less ofr lighter cars, and a few pounds more for heavier cars. FWD cars may require higher inflation pressure in the front tires. 13 inch slick for formula vars and sports racers should initially target for 22 PSI hot. Changing hot inflation pressure to alter the handing characteristics of the caris a fine tuning adjustment. Improving the overall grip level should be done by tuning spring rates, dampers, anti-rollbars, ride heights, alignment setting,etc.

Wear

In addition to utilizing tread temperature data to evaluate how the car an tire are performing the inside and outside tread wear indicator pins should be measured with a depth gauge to determine if camber or pressure change need to be made. If the inside of the tire is worn more, camber may need to be reduced. If the outside is worn more, camber will need to be increased, or inflation pressure will be need to be increased to prevent the tire from rolling over on the outside shoulder.

Heat cycles

The number of useful heat cycles that a set of race tires should be run is dependent upon whether or not they were properly scuffed, ambient and track temperature, track surface, length of each track session, and most importantly = driving style. Drivers that toss the car into the entry of a corner and slide throuth the middle and exit of a turn may have excessive tire wear and reduction in the consistency of the grip level. A smooth driving style will result in faster lap times and better tire performance .

Temperature

Tread temperature will vary depending on ambient and track temperature, the type of circuit ,and the type of car. The temperature should be within a range of 70 to 105 degrees when measured in pit lane. Optimum grip level is at 80 to 95 degrees. A probe type pyrometer is recommended for temperature measurements, and a consistent technique must be used, check the tires in the same location (inside middle, outside) and in the same order (LF,RF,RR,LR)each time the car comes to pit lane.

The data should be recorded as follows to make it easier to interpret. Depending on the width of the tire, the inside tread temperature should be 10 to 20 degrees hotter than the outside.

*OUT*	FL	IN	IN	FR	OUT
80	88	95	95	88	80
80	88	95	95	88	80
*OUT*	RL	IN	IN	RR	*OUT*

If the inside is too hot, camber may need to be reduced. If the outside is too hot ,camber will need to be increased , or inflation pressure will need to be increased to prevent the tire from rolling over on the outside shoulder. If the front tires are hotter than the rear tire , it may show an under steer condition, and if the rear tires are hotter than the front tiress , it may show an over steer condition. This isn’t the case for all types of vehicles. The front tires on FWD cars are usually always hotter, and the rear tire on high horsepower RWD cars may be hotter due to wheel spin. The tires should be relatively new when using treads temperature data to interpret car set up issues. Tires with a worn shoulder may give a misleading temperature spread across the tire because the thin area doesn’t hold as much heat as thicker areas.

Contact Us

Chongqing Rubbercraft Tire Co.,Ltd

Tel: 86 023-86899922

Phone: +86 15696180909

Email:

pushu@rubbercrafttire.com

yangli@rubbercrafttire.com

youxiaoli@rubbercrafttire.com

Factory Address: Building 8, Yongjiang Yiting, Ruitian Road, Yuzhong District, Chongqing, China

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About us

Rubbercraft tire is one of china company who are focus on quality high performance and race tires.

Chongqing Rubbercraft Tire Co.,Ltd

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