RACING 22 MRW RACING WHEELS MRW  ROCK CRAWLER WHEELS MRW  OFF ROAD WHEELS BEADLocK  KITS SHOENFELD HEADERS  
ROLL CAGES MOTORSPORTS ACCESSORIES  TECHNICAL HELP 
ORDERING INFORMATION
CONTACT US MRW HOME PAGE
MRW  ROCK CRAWLER BEADLOCK WHEELS 15"WHEEL 16"WHEEL 16.5"WHEEL 17"WHEEL 18"WHEEL 20"WHEEL
MRW  OFF ROAD WHEELS 15"WHEEL 16"WHEEL 16.5"WHEEL 17"WHEEL 18"WHEEL 20"WHEEL
MRW MANUFACTURERS OF "CUSTOM BUILT" MOTORSPORT WHEELS SINCE 1955

1-800-643-3625 

PLEASE PHONE 1-479-524-7624 OR 1-479-524-4157 IF OUR 800 NUMBER IS BUSY

"click"MRW PAGES IF USING MOBILE DEVICE"click"

 TECH CHARTS

TECHNICAL RACING TIRE INFORMATION 

Which one of the following should you use for tonight's feature ?. 

(A) The four tires you are now running ?.

(B) The same four tires with a 10 to 20 lb. Weight Reduction, Cambered, 

Textured, Contoured and Rejuvenated, to match the track surface ?.

 The Answer is (B)  Believe it or not some drivers choose (A)...we ask why ???

WEIGHT REDUCTION:

  WEIGHT REDUCTION: Very few racers weigh their tires. Weight reduction of tires is over looked. Everyone assumes there is nothing they can do to  reduce a tire's weight - Why?  Maybe it's because they've not had an affordable tool available in the past to quickly reduce the weight of their tires. Many racers don't understand that their RACE CAR thinks, acts, & responds as if it were 100 pounds lighter when they reduce the rotating weight 10 Ibs. (The 10 to 1 rule) Rotating mass (tires & wheels) have to be started twice, slowed down twice, & turned twice in each lap of oval track competition. The weight of the (TREAD) on the average racing tire is around 10 Ibs. If your tires were bald, that would reduce the rotating weight about 40 Ibs but you can't race on bald tires, so that's out. But, have you ever thought about reducing the weight on a track where you never have a problem wearing out the tires?   Some racers continue to do what   they have always done, and continue to be, what they have always been...But for those of you willing to change, those who really want to go faster, READ ON.     With just a little effort you can find lower lap times and a better chance at victory lane. Do you select your racing tires for a tacky quarter mile 15-lap event the same as you would for a 100-lap feature on the same track? If you do, when the 15-lap event is over you may have 98% of the tire tread remaining. About 25 years ago industry produced TUNGSTEN CARBIDE DISCS. However, their first use, buffing tires proved somewhat of a failure due to the fact that the surface of the rubber was scorched or burned in the buffing process. BLUE SMOKE IS A NO! NO! Then industry produced a disc with cooling holes in the disc. Instant success, now you can buff tires with the same disc over and over again and NEVER scorch, burn, glaze over, or seal the rubber. This glazing over or sealing is what happens to tires when they are over heated, or go through heat cycles (get hot and then cool).

TIRE COMPOUNDS: 


TIRE COMPOUNDS: Many times track rules take care of that decision for us. When in doubt ask around, or if you're in a traveling series, learn to examine the soil. Some soils are gritty and some are like baking flour. Go to the center of the track between turn 1 and 2, take a small sample of the soil and put it in the palm of your hand, if it is dry, spit on it to moisten it, then mix it or stir it around until it becomes workable. As you do so continue to rub it around in the center of your palm. Ask yourself, does this soil feel smooth like flour or abrasive like small particles of sharp glass. If it's smooth, choose a soft tire, if it's sharp and abrasive better choose a harder tire, or  you won't be around when the checkered flag falls. A durometer gauge is a hand-held indicator of a tread compound's hardness, however, keep in mind that it's very sensitive to   (#1) the smoothness of the surface being tested,   (#2) the tire temperature. A durometer serves as an indicator only.: Usually their accuracy is off by 5 or 10 points in the hands of an average pit man or track official. 

TIRE TEMPERATURE: 

TIRE TEMPERATURE: Think of some people you know. .. Some are what we call softies; they sit in an office all-day and sit in front of the TV when they get home. They couldn't do a day's hard physical work if they had to. Now, think of someone you know that works construction. They are out doors all day, every day, rain or shine, cold or hot. You can be sure the office person will fail the heat test, however; there is a good chance that your construction friend could stand up to the test. Soft compounds cannot take the heat. Harder compounds generally can take the heat, and still survive. Today, infer-red pyrometer guns can take a lot of guesswork out of compound selection and if used quickly (within 30 seconds) of the checkered flag and with experience, you will find out the temperature that works best with your tire selection. 

TIRE CONTACT PATCH:

TIRE CONTACT PATCH: That's the surface contact that the tires have on the racing surface under green flag conditions. Only tire engineers and some top winners have a background that offers them an understanding of contact patch under acceleration, cornering, and braking. So you have to look at the tires and the amount of stagger, select a wheel width, and tire inflation pressure before the race. Then try to estimate correctly, how a tire you have never seen before, will perform on a track you have never seen before, on a race car you put together 30 minutes ago. ...Of course we can always look (after) the race and see if the downward force. ..and temperature. ..was the same ALL THE WAY across the tread surface, or if you carried. .. all four of the tires 100 laps around the track, but only used 60% of the tires' potential. When we take a really close look at tires, it's amazing how much performance robbing weight is carried around the track. If you pay $100.00 for a racing tire why not have the whole tire performing at it's maximum? The reason some drivers don't camber their rear racing tires today is because they don't seem to understand the concept of TIRE CONTACT PATCH. The combination of a (tires' width and footprint length front to rear) produce the contact area. You may have heard that old adage. ...out of sight. out of mind.  You may want to ask yourself this question, HOW MUCH DID THE THOSE LAST TIRES I PUT ON MY RACE CAR WEIGH? Many top winners have learned the importance of rotating weight. Wheels and Tires both. 

Click to order 1-800-643-3625

 TUNGSTEN CARBIDE DISCS

 There is no BETTER, FASTER, or more ECONOMICAL way to prepare "MOTORSPORTS TIRES "for competition on DIRT or ASPHALT. This vented disc will never burn or scorch rubber, but will rejuvenate used (glazed or sealed over) tires, again and again, making MOTORSPORTS more affordable. Under many track conditions, the preparation of either USED TIRES OR NEW TIRES using Tungsten Carbide Disc will actually out perform untouched NEW TIRES

USE EXTREME CAUTION: Serious injury can result from the use of carbide disks. When powered by a buffer these disks can cut your arm or leg  "OFF"  NEVER USE ON A LOOSE TIRE. ---NEVER USE ON A TIRE THAT IS NOT INFLATED AND FASTENED TO AN AXLE. --DO NOT USE WHILE WEARING LOOSE FITTED CLOTHING. --USE EYE AND FACE SHIELD PROTECTION  

MODEL

DESCRIPTION

PRICE
 
25 -CD - 4   4" Tungsten Carbide Disc $44.95 ORDER NOW
25 -CD - 7 7" Tungsten  CARBIDE DISCS $53.95 ORDER NOW

TECHNICAL RACING TIRE INFORMATION 

CONTOURING, REJUVENATION, CAMBER, WEIGHT REDUCTION, and  TREAD SURFACE TEXTURING 

click below for technical  help

"click" to see offset page

"click" to see bolt pattern page

"click" to see BEAD-Loc install  page

"click" to see metric imperial bias tire charts 

"click" to see bolt grade specs. & conversion charts

"click" to see drill tap metal spec. fractions to decimal charts

 

"click" to see steel tubing hot roll metal weights and measures charts

 

"click" to see gear ratio chart

 

"click" racing tire calibration

mrtwheels@yahoo.com 

MRW RACING WHEELS BEADLocK ROCKCRAWLER  AND OFF ROAD WHEELS

MANUFACTURERS OF "CUSTOM BUILT" MOTORSPORTS WHEELS SINCE 1955

MARSH RACING WHEELS 

16951 LOGAN CAVE ROAD

SILOAM SPRINGS, ARKANSAS 72761

Toll Free --- 1-800-643-3625

Local --- 479- 524-4157

FAX --- 479-524-5168

www.mrt-wheels.com

www.rockcrawler-mrt.com

mrtwheels@yahoo.com 

TIRE GRINDER BUFFER DISK TIRE GROOVER TIRE SIPING TOOL CARBIDE DISK  TEAR OFFS
MAGNETIC PAINT TRACTION ADVANTAGE BEAD BREAKER   TIRE IRONS LOW PRESSURE GAUGES
SAFETY INFLATOR   VALVE STEMS TIRE STAGGER  TAPE LUG NUTS STICK ON MRW DECALS
MRW  BANNERS CHROME CENTER CAPS  CRASH PROTECTION SPORTS APPAREL NECESSARY ACCESSORIES 
  ROLL CAGES           

"Click" above for product page "Click"

1-800-643-3625 to order today or Use handy order form below

To copy this form start mouse curser at upper left side of form (below), holding left button down drag (move) curser across form to right side and then down to bottom and release, then right click mouse on any highlighted word and choose copy.---Now go to your E-mail page and right click on your letter, choose paste and fill in the blanks. (Type wheels in your subject line) and send to mrtwheels@yahoo.com  Or E-mail  mrtwheels@yahoo.com and we can email you this form.     You may Call 1-800-643-3625  or 1-479-524-4157 Mon. to Fri. 8:00 am. till 6:00 pm. U.S. Central time to place your order.      Thank you for choosing MRW    

THANK YOU FOR YOUR INTEREST IN MRW PRODUCTS --DO NOT SEND CREDIT CARD INFORMATION WITH E-MAIL 

Current Pricing Subject To Change Without Notice - Shipping F.O.B. Siloam Springs Arkansas 72761 - 1/30/2009

WHEEL QTY.

WHEEL DIAM.

WHEEL WIDTH

BACK SPACE

 BOLT PATTERN

WHEEL DESCRIPTION, OPTIONS & COLOR "chrome, silver, or black"

           
           
           
           
YOUR TYPE OF MOTORSPORT----
YOUR TIRE SIZE AND BRAND NAME-----
YOUR VEHICLES YEAR, MAKE, MODEL, & WEIGHT----
YOUR COMPLETE NAME SHIPPING ADDRESS AND POSTAL CODE----

 

 

WE WILL CALL OR E-MAIL YOU WITH YOUR QUOTE, SHIPPING COST & AVAILABILITY  We Use Bank wire transfer payment for non U.S. orders. 

YOUR PHONE NUMBER IS ---

ACCESSORIES  NEEDED----

 

Mail to: mrtwheels@yahoo.com

Current Pricing Subject To Change Without Notice - Shipping F.O.B. Siloam Springs Arkansas 72761 - 1/30/2009

OH!-OH! DID YOU FORGET SOMETHING ???? WE NOW HAVE HEADERS, TIRE SIPERS, TIRE GROOVING IRONS, GROOVING , BLADES, CARBIDE OR  NAIL GRINDING DISKS FOR GRINDING, CONTOURING TIRES, TIRE IRONS, MOTORSPORTS BUMPERS,  ROLL CAGES, LUG NUTS, VALVE STEMS, LOW PRESSURE TIRE GAUGES, TIRE BALLAST, TRACTION ADVANTAGE,  STAGGER GAUGE, STAGGER TAPES, BEAD BREAKERS,  MAGNETIC PAINT,  MUD COVERS & PLUGS, RACING APPAREL, RACING OPTICS, TEAR OFFS, RACING GLOVES, NOMEX DRIVERS UNIFORMS, NECK YOKES, ARM RESTRAINTS,  AND MANY OTHER MOTORSPORTS PRODUCTS -----------IF YOU NEED IT WE HAVE IT OR WILL TRY TO FIND IT FOR YOU.--------------DO NOT SEND CREDIT CARD INFORMATION WITH E-MAIL 

 

RACING WHEELS - RACE CAR WHEELS - DIRT TRACK RACING WHEELS - CIRCLE TRACK RACING WHEELS - OVAL TRACK RACING WHEELS - ASPHALT TRACK RACING WHEELS

RACING WHEELS by MRW

  SCHOENFELD HEADERS || 16# OUTLAW  wheels | STAGE II  wheels | STAGE III  wheels | ULTRA STAR  wheels | ECONO STAR  wheels | CHROME wheels | STOCK CAR WHEELS | RALLY WHEELS | WHEEL PARTS | BEADLocK  OPTIONS | BEADLocK  KITS | BEADLocK  PARTS     BEADLocK  INSTALLATION | CHECK` OFFSET | BOLT PATTERNS | ACCESSORIES  |  HISTORY | HOME |

MRW  ROCK CRAWLER WHEELS  15"  | 16"   | 16.5  |  17"  | 18"  | 20"

 MRW  OFF ROAD WHEELS  15" 16"  | 16.5" | 17"  |   18"  20"  | 22"

"QUICK CLICK" RACING WHEELS" 

STICK ON MRW DECALS | MAGNETIC PAINT  | BEAD BREAKER | TRACTION ADVANTAGE LUG NUTS  | CARBIDE DISK  ROLL CAGES | SAFETY INFLATOR  | TIRE IRONS |  | CHROME CENTER CAPS   | TIRE STAGGER  TAPE | LOW PRESSURE GAUGES | VALVE STEMS SPORTS APPAREL |

racing tire tech