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Manufacturer Airhead® Allied Wheel Components Andersen Manufacturing Atwood Boat Buckle BRIDGESTONE Bulldog C.T. Johnson Carlisle CE Smith CEQUENT Cragar Curt DEESTONE Dexter Axle Diversi-Tech DRAWTITE Freestar Fulton GBC Motorsports GOODYEAR GORHINO Great Day Inc. Hankook Hercules Tires HiddenHitch HITCH HIDE HTS HWT HiSpec Wheel and Tire JAXXON Trailer Tires JETCONNEX KODIAK LONGRUN Master Lock MILESTAR Mr. Lug Nut NANCO Optronics Peterson Mfg. Raceline Wheel Reese Scribner Plastics Secura SHADOW Shipshape Trailer Parts SIGNET Simple Green Super Trail TBC TEKONSHA Titan Trailer Components Tow Rax Tow Ready Towmaster Transmaster Truck-Lite UFP WESBAR Zieman
Bias Ply Tires
Radial Tires
8 inch Tires
10 inch Tires
12 inch Tires
13 inch Tires
14 inch Tires
15 inch Tires
16 inch Tires
17 inch Tires
17.5 inch Tires
ATV Tires
Golf Cart Tires
LT Truck and Trailer Tires
Part Number: ST-BALANCE
Part Number: ST-AWT4.80-8B
Part Number: ST-GBT0856D
Part Number: ST-29335007
Part Number: ST-AWT16.5x6.50-8C
Part Number: ST-AWT5.70-8B
Part Number: ST-GBT0864
Part Number: ST-AWT5.70-8C
Part Number: ST-AWT5.30-12B
Part Number: ST-AW48012C
Part Number: ST-GBT1228E
Part Number: ST-AW53012C
Part Number: ST-TDW45640
Part Number: ST-29125010
Part Number: ST-29510004
Part Number: ST-29490005
Part Number: ST-29185002
Part Number: ST-GBT1028E
Part Number: ST-GBTS12145D
Part Number: ST-29506008
Part Number: ST-17580D13
Part Number: ST-29705002
Part Number: ST-GBT1030E
Part Number: ST-IK1736
Part Number: ST-TDW1152001831
Part Number: ST-29705004
Proper wheel selection is a very important component of your trailer gear system. When replacing your trailer tires/rims it is critical that the proper size and load range be selected in order to match the load requirements of the trailer. The following characteristics are extremely important and should be thoroughly checked when replacing trailer tires.
TIRE CONSTRUCTION TYPE - Bias Ply vs. Radial
TIRE APPLICATION TYPE - (ST) Special Trailer vs. (P) Passenger Car
TIRE SIZE - % of section height / section width Refereed to as 'Aspect Ratio'
TIRE LOAD RANGE - Load carrying capacity and air pressure rating
RIM SIZE - Diameter and width must match tire
RIM BOLT CIRCLE - Diameter of bolt circle must match hub
Quite often consumers are uncertain how to read or interpret specifications on a tire side wall. This problem is compounded by the Trailer Tire Industry's use of three different size identification systems on trailer tires. The following are examples and explanations of tire code.
THE NUMERIC SYSTEM - (4.80 X 8) mostly used on smaller trailer tires, indicates the tire section width (4.80"), and the rim diameter (8")
THE ALPHA NUMERIC SYSTEM - (B78 X 13 C) common on 13"-15" trailer tires, indicates air chamber size (B), the 'Aspect Ratio' (78), the rim diameter (13"), and the load range (C)
THE METRIC SYSTEM - (ST205 75D 15) currently being phased in by trailer tire manufacturers, indicated the tire application type (ST-special trailer), the section width (205mm), the 'Aspect Ratio' (75), the construction type (D= bias ply), and rim dia.(15")
Proper rim selection is also important to assure replacement wheels will match your existing trailer hardware. Be certain to match your wheel 'bolt circle' pattern to the axle hub. The bolt circle is determined as follows:
Tire 'load range', or the maximum weight each tire can safely support, must be considered when selecting the proper size tire for your application. The load range and maximum weight capacity are indicated on the tire side wall.
LOAD RANGE B = OLD 4 PLY RATING
LOAD RANGE C = OLD 6 PLY RATING
LOAD RANGE D = OLD 8 PLY RATING
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