5 factors A to E to pick a right tire:

A). overall tire size: Read the sidewall of your original tire and stay with the same numbers

B). bore diameter: Measure the central hole ID or the shaft OD.

C). Trailerable:

This model does NOT fit any trailer type vehicle. (*Our trailerable tires are coming this August, 2021.)

D). hub length: Measure through the central hole, or the front fork inner space, or the axle length.

E). hub position: Check on your original tire hub position, centered or offset.

Technical Specification:

CODE:854714-B12-005741HQ2

Model: 4103506-FFWT191A

Size: 13"(12.5") Diameter

SW: 3 15/16"

Weight: 6.5 pounds

Max. Load: 500 pounds dynamic bearing only per 2 tires

Mounted on a heavy-duty steel rim with high performance bearing

Hub length: Universal 3.25"-5" Centered Hub Length; adjustable through Wheel Spacers & Adapter Kits attached

Bearing: 5/8" Installed Ball Bearing additional With two Extra 3/4" Ball Bearings for Universal Adjustment. Remark:
1). Upon receipt, if you see the hub length shorter or bore diameter wrong, please contact us for spare parts change or extra purchase.
2). On return, once unavoidable, please read through our Return Policy for complete instruction.
3). On spacers, now we only provide 1 size of φ3/4", which is applicable for φ3/4", φ5/8" and φ1/2" shafts.
4). Grease bushing is installed on some heavier duty tires, instead of ball bearing, for high speed commercial-grade devices.
5). On exchange, for the delivered wrong tires, please follow the return procedure for refund; and put a new order on the right tire(s) separately.