Bridgestone Motorcycle North America Basic Motorcycle Tire Information Norris “T.J.” Tennent...

Bridgestone Motorcycle North AmericaBridgestone Motorcycle North America

Basic Motorcycle Tire Information

Norris “T.J.” Tennent

Motorsports Project Manager

Work Hard!Have fun!Have Passion!Enjoy Life!

O.K. get your minds out of the gutter and Let’s Talk Tires!!!

Radial

The benefits of using Radial Technology:

•Outstanding traction due to flat stable crown & larger footprint

•Better distribution of pressure in footprint resulting in reduced soil compaction & greater flotation

•Reduced working time due to less tire slip, greater productivity

•Reduced fuel consumption

•Longer tread life

•Comfort & handling on the road

The drawbacks of using Bias-Ply Technology:

•In bias-ply tires the tread & sidewalls share the same casing plies

•All sidewall flexing is transmitted to the tread, resulting in:•deformation in the tread contact patch•friction with the ground•rapid wear•reduced traction•higher fuel consumption

Bias Ply

Tire Componentschapter

PARTS OF A TIRE1 2 3 4 5

• Not all components are in all tires.

Innerliner

Beadbundles

Beadfiller

Cord body

Sidewall

Shoulder inserts

Belt plies

Cap ply

Tread

CORE TIRE KNOWLEDGE

Innerliner

The innerliner is a rubber compound bonded to the inside of the cord body that retains air under pressure. It has no cord reinforcing and functions as an innertube in a tubeless tire.

chapter

PARTS OF A TIRE1 2 3 4 5

CORE TIRE KNOWLEDGE

Tire Components

Tire ComponentsBead Bundles • Tire bead bundles are

large copper, brass, or bronze plated high tensile steel cords wound together. Tire beads occasionally include some type of fabric wrap to retain the bead shape prior to the curing process. The body plies of the tire are looped around the bead bundles to hold the plies in place. The bead holds the tire on the rim.

chapter 1 2 3 4 5PARTS OF A TIRE

CORE TIRE KNOWLEDGE

Tire Components

• The bead filler is a hard rubber compound used to provide stability to the lower sidewall and bead area.

Bead Filler


CORE TIRE KNOWLEDGE

Tire Components

• The cord body provides tire strength and transmits cornering forces from the tread to the wheel. Rubber coated cord, called body plies, make up the cord body. Body plies can be polyester, rayon, or nylon. Polyester is the most common cord body. The area of the body ply that wraps around the bead is called the turn up.

Cord Body [ tire casing ]


CORE TIRE KNOWLEDGE

Tire Components

• The sidewall is the area of a tire from the bead to the tread. It forms a protective covering for the cord body. Sidewall rubber compounds resist aging, cracking, cutting, and snagging, and contain sidewall treatments such as white lettering.

Sidewall


CORE TIRE KNOWLEDGE

Tire Components

• Belt plies are two or more strong layers of cord under the tread area. The main function of the belt system is to provide stability to the tread area of the tire. They assist in improving tire mileage, impact resistance, and traction by giving the tread area extra strength and stability. The most common cord material used in the belt plies is steel.

[ package or system ]Belt Plies


CORE TIRE KNOWLEDGE

Tire Components

• The cap ply also found in some tires is similar to belt edge strips only full width instead of just on the belt edges. These components may be used for a number of reasons, but most commonly to enhance high speed performance.

Cap Ply


CORE TIRE KNOWLEDGE

Tire Components

• The tread is the portion of the tire in contact with the road surface. The tread compound and shape are designed to optimize the wear, traction, handling, fuel economy, and cut resistance characteristics of the tire given the tire’s intended use.

Tread


CORE TIRE KNOWLEDGE

Tire Dimensions

These are the basic

tire dimension terms. Tread Width

Section Width

Section Height

Overall Diameter

Static Loaded Radius

Aspect Ratio [profile or series]

chapter

TIRE AND RIM DIMENSIONS

1 2 3 4 5

CORE TIRE KNOWLEDGE

Tire Dimensions

• The tread width is the distance from outer edge to outer edge of the tread. You can estimate differences between the existing and the replacement tires by comparing the tread widths. You can estimate changes in fender well and frame clearances by dividing the tread width differences between the existing tire and the replacement tire by two.

chapter


1 2 3 4 5

Tread Width

TREAD WIDTH

CORE TIRE KNOWLEDGE

Tire Dimensionschapter

The section width is the width of a new tire when mounted on the tire’s measuring rim, including normal sidewalls but not including protective side ribs, bars, raised letters, or decorations. You can estimate the width differences between the existing and replacement tires by comparing the overall section widths. You can estimate changes in sidewall to fender well, frame, and suspension clearances by dividing the overall section width differences between the existing tire and the replacement tire by two.


1 2 3 4 5

Section Width

TREAD WIDTH

SECTION WIDTH

CORE TIRE KNOWLEDGE


The section height of a new tire is the distance from the rim vertically to the highest point of the unloaded tread area.


1 2 3 4 5

Section Height

TREAD WIDTH

SECTION WIDTH

SECTION HEIGHT

CORE TIRE KNOWLEDGE


The aspect ratio, also known as the profile or series, is the ratio of the section height to the section width. For example, a 75 series tire is approximately 75 as high as it is wide.

Lower aspect ratio tires, such as 60 series, generally offer performance advantages over higher aspect ratio tires, such as 70 or 75 series. They provide more responsive handling, more stability, and better high-speed capabilities.


1 2 3 4 5

Aspect Ratio [profile or series]75 SERIES

70 SERIES

Height

= 75% of Width

60 SERIES

CORE TIRE KNOWLEDGE

Tire Dimensions

• The overall diameter of a tire is the distance from tread surface to tread surface while inflated but not loaded. It is twice the section height plus the nominal rim diameter. You can estimate the height difference between the existing and replacement tires by comparing the overall tire diameters. You can estimate changes in the tire to fender well clearance and vehicle ground clearance by comparing the radiuses (diameter divided by 2 = radius) of the two tires.

chapter


1 2 3 4 5

Overall Diameter

OVERALLDIAMETER

SECTIONHEIGHT

RIMDIAMETER

CORE TIRE KNOWLEDGE

Tire Dimensions

• The static loaded radius is the distance from the center of the axle to the contact surface when a prescribed load is applied to a tire mounted on the measuring rim and inflated to the recommended pressure.

chapter


1 2 3 4 5

Static Loaded Radius

OVERALLDIAMETER

RIMDIAMETER

SECTIONHEIGHT

STATIC LOADEDRADIUS

CORE TIRE KNOWLEDGE

Additional Tire Sidewall Information

The maximum load indicates the load capacity for a tire. The inflation pressure indicates the maximum air pressure.

chapter 1 2 3 4 5TIRE SIDEWALLINFORMATION Maximum Load and Inflation Pressure

CORE TIRE KNOWLEDGE

LOAD INDEX (LI) RATING CHART

LI lbs. LI lbs. LI lbs. LI lbs. LI lbs.

20 176 33 254 46 375 59 536 72 783

21 182 34 260 47 386 60 551 73 805

22 187 35 267 48 397 61 567 74 827

23 193 36 276 49 408 62 584 75 853

24 198 37 282 50 419 63 600 76 882

25 204 38 291 51 430 64 617 77 908

26 209 39 300 52 441 65 639 78 937

27 215 40 309 53 454 66 661 79 963

28 220 41 320 54 467 67 677 80 992

29 227 42 331 55 481 68 694 81 1019

30 234 43 342 56 494 69 716 82 1047

31 240 44 353 57 507 70 736 83 1074

32 247 45 364 58 520 71 761 84 1102

SPEED RATING CHART

Maximum Design/Test Speed

J Type 62 100

N Type 87 140

P Type 94 150

S Type 112 180

H Type 130 210

V Type 149 240

Motorcycle Speed Ratings

Z Type 149+ 240+

Additional Tire Sidewall Information

The Department of Transportation[DOT] Code is a serial number that denotes specific manufacturing information about the tire. The serial number includes the DOT label, the manufacturer and plant code, the tire size code, optional symbols from the manufacturer, and the date of manufacture.

chapter 1 2 3 4 5TIRE SIDEWALLINFORMATION The Department of Transportation

[DOT] Code

CORE TIRE KNOWLEDGE

The last four digits should be your concern! The first two digits are the week that the tire was produced andthe last two digits are the

year the tire was produced!

DOT XX XX XXX 2007

This is important because your warranty is good for four years

from the DOT date or four years from the date of purchase up to

7 years!

Technical Topics

• Changing tire fitment• Towing Trailers• Dealers and Sales Reps need more tire

knowledge• Cupping on front tires (heavier

bikes)• Wear on one side of the tire• Tires mounted backwards• Nitrogen vs. Compressed air• Tire Mileage• Warranty

• Changing Tire Fitment1) Tires marked “Front Tire” or “Rear Tire” should be mounted only in their stated wheel positions.2) Some motorcycle wheel positions may only be fitted with radial, bias, or bias belted tires. Consult owners manual, local dealer, or Tire Manufactures Technical center for the correct tire/wheel combination for your vehicle.3) Switching from Radial to Bias or Tube Type to Tubeless

• Towing Trailers1) Towing trailers behind your motorcycle may contribute to motorcycle instability. It may also cause tire stress through overload. This overloaded condition could cause damage to the tire which could result in a sudden tire failure and/or accident. Most tire manufactures do not warranty tires fitted on motorcycles fitted with trailers2) Sidecars should not be fitted to motorcycles without approval from your vehicle manufacturer. If approval is obtained for sidecar fitment to your vehicle, the tire manufacturer should be consulted, before fitment, to ensure proper tire fitment and load caring capacity

ArticleNumber

TireSize

RimSize

TireDescription

OECode

LoadRating

SpeedRating

O/ADia

TreadWidth

TreadDepth(32's)

ApprovedRim

MaxLoad

MaxPSI

O.E.

057537 120/70B17M/C 17 BT020F BW TL (BIAS) M 58V V 23.9 4.8 5 (3.50)3.50-3.75 520 42 BMW K1200LT 2005

057537 120/70B17M/C 17 BT020F BW TL (BIAS) M 58V V 23.9 4.8 5 (3.50)3.50-3.75 520 42 BMW K1200LT 2005-2006 (Bias Ply)

070593 120/70ZR17M/C 17 BT020F BW TL E 58W Z 23.7 4.6 5 3.50 520 42 BMW R1150RT 2005

071630 120/70ZR17M/C 17 BT020F BW TL NN 58W Z 23.8 4.6 5 (3.50)3.50-3.75 520 42 Triumph Sprint ST 2006

094427 120/70ZR17M/C 17 BT020F BW TL UU 58W Z 23.7 4.7 5 (3.50)3.50-3.75 520 42 BMW K1200GT 2006

103489 120/70ZR17M/C 17 BT020F BW TL L 58W Z 23.8 4.6 5 (3.50)3.50-3.75 520 42 Kawasaki ZRX1200 2001-2003

085901 120/70ZR17M/C 17 BT020F BW TL - 58W Z 23.8 4.7 5 (3.50)3.50-3.75 520 42 Ducati ST3 2006

116815 120/70ZR17M/C 17 BT020F BW TL B 58W Z 23.8 4.6 5 (3.50)3.50-3.75 520 42 Honda VFR800F 2002-2003

039364 120/70ZR17M/C 17 BT020F BW TL G 58W Z 23.8 4.6 5 (3.50)3.50-3.75 520 42 Yamaha FZ6 2003-2004

039364 120/70ZR17M/C 17 BT020F BW TL G 58W Z 23.8 4.6 5 (3.50)3.50-3.75 520 42 Kawasaki Ninja 650R 2006

021718 120/70ZR17M/C 17 BT020F BW TL CC 58W Z 23.7 4.7 5 (3.50)3.50-3.75 520 42 Yamaha FJR1300 2001-2004

021718 120/70ZR17M/C 17 BT020F BW TL CC 58W Z 23.7 4.7 5 (3.50)3.50-3.75 520 42 BMW K1200GT 2003-2004

021718 120/70ZR17M/C 17 BT020F BW TL CC 58W Z 23.7 4.7 5 (3.50)3.50-3.75 520 42 BMW R1200RT 2006

021718 120/70ZR17M/C 17 BT020F BW TL CC 58W Z 23.7 4.7 5 (3.50)3.50-3.75 520 42 Yamaha FZ6 2004-2006

070865 120/70ZR18M/C 18 BT020F BW TL F 59W Z 24.7 4.5 5 (3.50)3.50-3.75 536 42 Honda ST1300 2002-2004

085979 160/60ZR17M/C 17 BT020R BW TL - 69W Z 24.9 6.5 8 (4.50)4.25-5.00 716 42 Kawasaki Ninja 650R 2006

057554 160/70B17M/C 17 BT020R BW TL (BIAS) M 79V V 25.8 6.3 8 (5.00)4.25-5.00 963 48 BMW K1200LT 2005

057554 160/70B17M/C 17 BT020R BW TL (BIAS) M 79V V 25.8 6.3 8 (5.00)4.25-5.00 963 48 BMW K1200LT 2005-2006 (Bias Ply)

BMW K1200LT

58V is equal to max load is 520lbs at 42psi at 149MPH

79V is equal to max load is 963lbs at 48psi at 149MPH

GL1800LT

ArticleNumber

TireSize

RimSize

TireDescription

OECode

LoadRatin

g

SpeedRating

O/ADia

TreadWidth

TreadDepth(32's)

ApprovedRim

MaxLoad

MaxPSI

O.E.

122971 130/70R18M/C 18 G709F BW TL - 63H H 25.3 5.0 6 3.50 600 41

ArticleNumber

TireSize

RimSize

TireDescription

OECode

LoadRating

SpeedRating

O/ADia

TreadWidth

TreadDepth(32's)

ApprovedRim

MaxLoad

MaxPSI

O.E.

070627 180/60R16M/C 16 G704R BW TL - 74H H 24.5 6.9 10 5.00 827 41 Honda GL1800 2001-2002

070627 180/60R16M/C 16 G704R BW TL - 74H H 24.5 6.9 10 5.00 827 41 Honda GL1800 2003

63H is equal to max load is 600lbs at 41psi at 130MPH

74H is equal to max load is 827lbs at 41psi at 130MPH

Motorcycle Data collection

BIKE INFO Weights (FRT / REAR)

YEAR MAKE MODEL Mileage Fuel Level Bike Only W/1 Rider W/2 Riders

1 2004 HONDA GL1800 41,889 FULL 440/556 488/646 501/827

2 2002 HONDA GL1800 18,254 FULL 422/526 471/636 482/832

3 2002 HONDA GL1800 12,901 FULL 433/548 466/642 462/823

4 2001 HONDA GL1800 50,974 FULL 394/543 440/629 438/788

5 2003 HONDA GL1800 40,580 FULL 431/579 482/656 482/838

6 2002 HONDA GL1800 60,288 FULL 447/614 449/638 453/821

7 2003 BMW K1200LT 58,895 2/3 392/484 453/605 451/737

8 2007 BMW K1200LT 0 FULL 403/462 451/594 449/717

9 2005 BMW K1200LT 25,294 1/3 389/462 436/592 440/726

10 2002 BMW K1200LT 32,781 FULL 414/510 449/638 449/798

501/827482/832462/823438/788482/838453/821

Max load at max air pressure (41psi) is

827lbs with stock parts and rider and passenger average weights of 200

and 120lbs

Max load at max air pressure

(48psi) is 963lbs with stock parts and rider and passenger average weights of 200 and

120lbs

451/737449/717440/726449/798

Cargo Trailer comparison guide

Manufacturer / Model Cubic Max Overall Body Wheel Empty Ice Luggage Alphabetic by manufac. Feet Load Suspension Width Length Length base Weight Lid Chest Rack

American Legend 20 350 Independent Torsion bar 45" 91" 51" 38" 180

Full/front pivots Option Option

Bushtec/Roadstar 22 225 independent trailing arm/air 40" 84" 48" 36" 125

Full/front pivot Option Option

Bushtec/Turbo +2 25 225 Independent trailing arm/air 39" 86" 50" 36" 125


Bushtec/Quantum 26 225 Independent trailing arm/air 39" 86" 50" 36" 150


Bushtec/Genesis 27 200 Independent trailing arm/air 39" 88" 54" 36" 185

Full/front pivot Standard No

California/Escapade 17 350

Independent trailing arm/adj. Shock/coil 37" 85" 58" 30” 142

Full/pivots front Option Option

California/Escapade LE 25 350

Independent trailing arm/adj. Shock/coil 40" 94" 67" 33” 168

Full/pivots front Inside Option

Champion/Colorado 24 370 Trailing swing arm 41" 94" 68" 34" 165


Cyclemate/CM1000 15 200 Independent 38" 72" 42" 36” 125 Full/pivots side No Standard

Cyclemate/CM2000 19 225 Independent 38" 86" 54" 36” 145 Full/pivots side No Standard

Cyclemate/CM2000 LTD 22 270 Independent 38" 86" 54" 36” 155

Full/pivots side No Standard

Cyclemate/Windraider 19 215 Independent torsion arm 40” 95” 61” 31” 185

Full/pivots front Option No

Cyclemate/Zephyr 22 200 Independent torsion arm 43” 95” 59” 36” 230


Getaway/GT Eliminator 26 320

Custom swing arm 34" 77" 44" 36” 110

Full/pivots front Option Standard

Getaway/GT Millenium 24 280

Custom swing arm 40” 88” 48” 38” 180

Full/pivots front Option No

Getaway/GT Sport 16 180 Custom swing arm 34” 77” 44” 32” 110

Full/pivots front No no

Getaway/GT Voyager 26 250 Custom swing arm 50” 89” 89” 47” 150

Full/pivots front No No

Hannigan/Trans-Sport 27 300

Twin trailing arms/independ. coil/gas shocks 44” 96” 75” 36” 200

2/3/pivots front No No

Hannigan/Europa 23 300

Twin trailing arms/independ. coil/gas shocks 40” 80” 67” 34” 170

2/3/pivots front No No

Neosho/Starlite Deluxe 19 250 Leaf Spring 35" 77" 49" 28” 150

Full-pivots Option Option

You’re still at 290lbs towing

Stopping weight!

You’re still at 430lbs towing

Stopping weight!

If you just have to tow…..use a trike. The tires have the

load carrying capacity!

• Dealers and Sales Reps need more tire knowledge1) Dealers have limited or no knowledge of how

the motorcycle tire warranty system works.2) Working with the larger distributors to increase

dealer tire knowledge3) Seminars like this will increase consumer

knowledge

• Cupping on front tires (heavier bikes)1) Three reasons

A. 90%-Air Pressure-Air Pressure- Air PressureB. 8%-MechanicalC. 2%-Tire tread design

• Wear on one side of the tire1) Always alignment related (same as on your 4

wheeled vehicle)

• Tires Mounted Backwards

1) Tires have a directional arrow on them for a reason

• Nitrogen vs. Compressed air

Pros Cons

N2 is always Drier Usually costs money

N2 helps tire run cooler Not always available

N2 is good for higher speeds What percentage N2

C.A. is readily available Sometimes very wet

C.A. is as good as N2 when Very hard to get in dry

dry condition.

• Tires Mileage1) Why can’t I get 30 or 40 thousand miles out of my motorcycle

tires2) The application, compound, and the footprint3) The rider, the type of bike, maintenance on the bike, the type of

tire, how much air pressure, the ambient temperature, the road surface temperature, type of road surface, demographics (location),

whewwwwww!

• Warranty1) Consult your dealer2) Consult your tire manufacturer3) Consult your vehicle manufacturer4) Most tire manufacture's have a basic warranty for workmanship

and materials5) Engineers want to know if you are having a tire problem6) Because of the “Tread Act” no one can “just send you a tire”.7) Though “forums” are O.K. for you to vent, they don’t allow the

manufacturer to investigate a tire problem. We have to see the tire with the problem to determine what is wrong with the tire.

Questions???

Thank You

Bridgestone Motorcycle North America Basic Motorcycle Tire Information Norris “T.J.” Tennent...

Documents

Transcript of Bridgestone Motorcycle North America Basic Motorcycle Tire Information Norris “T.J.” Tennent...