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Old 06-10-2006, 05:02 PM   #1
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Default Rubber Tyres and inserts theory

Has anyone come across any good articles or advice on rubber tyre/ insert combinations on outdoor ashphelt in all conditions. I know what works for me but would like some more theory to fully understand and to get the best out of the various setups. I am sure others would also benefit.
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Old 06-10-2006, 05:26 PM   #2
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Here's something to get the thread started, lifted from another thread from a while back.

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Generally when the traction is super high, people will use a harder insert to help support the tire better. It decrease forwards bite and side bite. Usually try to run as hard as insert you can and still have the overall bite you need.

Air gap is what controls the amount of forward bite you have. Bigger air gap means more forward bite, smaller air gap means less forward bite, but better support for the tire, and generally less tire wear. The air gap lets the tire squirm around more and conforms to the road much better. I like a large air gap on tracks with lots of slow corners and when the track is a touch bumpy, and I like less airgap on smoother, bigger, and faster tracks to decrease rolling resistance, and so the tire just doesnt fold over on it self in the high speed corners.

An air gap also lets tires heat up quicker, and they dont get to as high of a temp (because there is air fowing around inside the tire and stuff assuming you have big enough hols in your rims) Less air gap will generally take a bit longer to heat up, but they will get to a higher final temperature. I will usually think about it when I'm racing outdoors in really hot weather to keep the tires from overheating.

To change your airgap you get different inserts. Thinner inserts like the Yokomo 039 series and the Sorex type C inserts have a large airgap because they are thin inserts. The HPI, Sorex type A, and yokomo 037 inserts are thicker, and have thicker profiles, so they will fill the inside of the tire up more giving you less airgap. Sorex type B inserts fall right in the middle in my opinion.
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Old 06-11-2006, 08:30 AM   #3
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Default XENON Inserts

Hi,

How about XENON inserts?? They have this Orange, Yellow, Green, Blue, Black, Red and Aqua. My local track has high traction and high tire wear even if I am using Green inserts with Sorex 40R.

Can someone post the Xenon insert difference intheir characteristic??
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Old 06-11-2006, 08:50 AM   #4
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Old 06-11-2006, 08:52 AM   #5
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Oooppss.... I got it.. thanks to Speedtech RC. I however dont understand the shape. What is the effect between the two shapes?
Below are the Xenon tire characteristics..

Part # Color Compound Shape
0000 Orange Super Soft Arched
0001 Yellow Soft Arched
0002 Green Medium Arched
0003 Blue Firm Arched
0010 Red Super Soft Trapizoidal
0011 Aqua Soft Trapizoidal
0012 Black Medium Firm Trapizoidal
0013 Gray Firm Trapizoidal
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Old 06-11-2006, 09:02 AM   #6
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Quote:
Originally Posted by Speed Demon
Hi,

How about XENON inserts?? They have this Orange, Yellow, Green, Blue, Black, Red and Aqua. My local track has high traction and high tire wear even if I am using Green inserts with Sorex 40R.

Can someone post the Xenon insert difference intheir characteristic??
 TIR-0000 ORANGE XENON MOLD TIRE INSERT (SUPER SOFT)
 TIR-0001 YELLOW XENON MOLD TIRE INSERT (SOFT)
 TIR-0002 GREEN  XENON MOLD TIRE INSERT (MEDIUM)
 TIR-0003 BLUE  XENON MOLD TIRE INSERT (HARD)
 TIR-0004 PINK  HI-COMP MOLD TIRE INSERT (SOFT)
 TIR-0005 PURPLE  HI-COMP MOLD TIRE INSERT (MEDIUM)
 TIR-0006 RED  HI-COMP MOLD TIRE INSERT (HARD)
 TIR-0010  X-TYPE MOLD TIRE INSERT (SUPER SOFT)
 TIR-0011 AQUA  X-TYPE MOLD TIRE INSERT (SOFT)
 TIR-0012 BLACK  X-TYPE MOLD TIRE INSERT (MEDIUM)
 TIR-0013 GRAY  X-TYPE MOLD TIRE INSERT (HARD)

I think thats all they make. Not sure what colour TIR-0010 is.
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