Bill Smith
Founder, 1929-2014
Speedy Bill
Since 1952
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America's Oldest Speed Shop ®


Speedway Super Siper

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Speedway Super Siper

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Q & A

What's in the Box

Unique design is easy to use with its six common utility knife blades. Billet aluminum handle with curved, high-tech plastic base. Small size.

You may also be interested in:

Econ-O-Siper Tire Siper
(Part #91082065)

The Econ-o-siper comes with one #4 head and two blades. No heat.

Different size heads and blades are available seperately.

Speedway Billet 14 Blade Mega Siper
(Part #91082064)
                        You asked, we listened.

Here is the next generation of tire sipers. This billet aluminum beauty has 14 adjustable blades that allow you to prep your tires faster and easier. Uses common utility knife blades.
Van Alstine S-100 Heated Tire Siper
(Part #91082052)

Shallow tire siping is a great way to get better grip from your dirt racing tires. This trick siper tool is heated for easier cutting and holds up to thirteen blades for faster tire prep. 

This product is shipped with 4 strips with 6 blades each. They are not installed. Uses replacement blades 910-82054. This tool will also cut "open sipes" by using a #1 blade.

Product Brochure (PDF)

Deluxe 110 Volt 250 Watt Grooving Iron
(Part #445251)

These 110 volt, 250 watt pistol grip grooving irons by Ideal Heated Knives come with a number 4 head and blades. Works great as a heated siper when you turn the blades upside down. Different size heads and blades sold separately.

Made in the U.S.A. Includes (1) #4 head and (1) package of #4 blades. Different size heads and blades sold separately.