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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 Excalibur Freestar Fulton GBC Motorsports GOODYEAR GORHINO Great Day Inc. Hankook Hercules Tires HiddenHitch HITCH HIDE HTS HWT HiSpec Wheel and Tire Import Brand Trailer Tire JAXXON Trailer Tires JETCONNEX KODIAK LONGRUN Master Lock Michelin MILESTAR Mr. Lug Nut NANCO Nankang Optronics Peterson Mfg. Raceline Wheel Reese Scribner Plastics Secura Sendel Wheel SHADOW Shipshape Trailer Parts SIGNET Simple Green Super Trail TBC TEKONSHA Titan Trailer Components Tow Rax Tow Ready Towmaster Transmaster Truck-Lite UFP Various Used Trailer MFGs WESBAR Winner International Zieman
Part Number: ST-762-173-406
Part Number: ST-GBTH16235E
Part Number: ST-TDW75733
Part Number: ST-C5151411
Part Number: ST-C5151501
Part Number: ST-C5151431
Part Number: ST-TDW72985
Part Number: ST-762-394-406-0
Part Number: ST-C5151441
Part Number: ST-LT22575R16BS
Part Number: ST-TDW59545
Part Number: ST-LT28575R16
Part Number: ST-LT24575R16
Part Number: ST-LT23585R16
Part Number: ST-GCR3001529
Part Number: ST-TH10-23575R175
Part Number: ST-TDW1152002041-4PACK
Part Number: ST-756246567
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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