300H300 | Heavy Standard Timing Belt

Marsoni

M251S

$103.27

Get it in 3 business days with 1 day shipping. Friday, May 29

300H300 | Heavy Standard Timing BeltThese Timing Belts has been designed for reliable performance over long periods of time and are suitable for a variety of applications. They are made of quality material which makes them long lasting and durable. Product Details : 300H300 Heavy Standard Timing Belt Part No: 300H300 Product Type: Heavy Standard Timing Belt System Of Measurement: Imperial Belt Length: 30" Tooth Pitch: 1 2" Belt Width: 3" No. Of Teeth: 60 Core Material(s): Fiberglass

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I haven't had a flat tire yet, so I also haven't had occasion to test these but they seem like great value for an extremely low price (especially versus a new tire.) I have handled them to try and gauge how quickly they'd smooth a hole, and they're rough / sharp and aggressive enough that I expect them to work quickly and well on not only tires, but on a variety of other materials. This pattern in particular should allow material to be shed and then passed backward pretty easily without clogging things up or slowing them down. If you've bothered to buy a patch kit for your tires, you really ought to have one of these around.

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Reviewed in the United States on January 18, 2026