Speedway Super Siper Tire Siping Tool, Tire Cutting Tool

Description

Unique design is easy to use, Uses up to six common utility knife blades, Billet aluminum handle with curved plastic base, Adjustable cutting depth, No power source required
Speedway Super Siper Tire Siping Tool, Tire Cutting Tool
Sku # 91082060
Mfr. Part # 91082060
Condition
New
Brand
Speedway Motors
Sold
Each
Details
Notes
Tire Grooving Tips
Sanding the mold nubs off the tread before grooving or siping is suggested if the nubs are large; a tire grinder with a 60-grit sanding pad works well for this
Most tires are easier to groove or sipe with the tire mounted and inflated to normal pressures; this is especially true with thin wall racing tires
Complex tread designs can be marked out with a tire marking paint pen or paint stick
Circle Track specific Grooving and Siping Tips
Tire Grooving
Grooves around the circumference of the tire will add side bite and help cool the tire
Grooves across the tread will add forward bite and help warm up the tire
Rear tire grooves and sipes across the tread typically work best when straight across the tread (90 degrees to the circumferential grooves)
Front tire grooves and sipes across the tread typically work better at a slight angle and when viewed from the top of the right front tire the grooves will angle from right front to left rear
Tire Siping
Sipes have a similar effect as grooves and are primarily used to warm up the tire
Sipes around the circumference do not provide much if any cooling effect since they are not open for air to flow through like grooves are
1/8-inch to 3/16-inch sipe depth works well for most tires.
Adding more sipes which are closer together will increase the tire temperature and will add grip as long as the tire is not overheated
If a tire is overheated and blisters the sipes need to be spaced further apart and possibly a shallower depth of cut should be used
More sipes are typically used on front tires to help them heat up and less sipes on rear tires, especially the right rear
Info
Perfect for siping tires used in motorsports
Two handle design aids in cutting stability
No power source required or cords to manage
Tough billet aluminum body construction with nylon base
Uses easy to find standard utility knife blades sourced locally
Cuts up to six sipes with each pass of the tool
Depth of cut adjustable by loosening thumb screws and setting to desired depth
Maximize Your Tire’s Traction by Adding Grooves and Sipes
If you race on dirt you know that track conditions change throughout race day and many will ask how to increase traction on tires. From a high grip surface that can be wet and slinging mud to a shiny black or even hard and dusty surface as the laps pile up and the sun goes down, tire traction can change dramatically. While there are different tire compounds you can choose from to aid in traction depending upon the track’s bite, one thing many experienced racers do is modify their dirt tires by adding grooves and sipes to the tread blocks.
What is tire siping and grooving? Well, grooving is just that, cutting grooves in the tread where you are removing rubber, while siping is where you make a thin cut (like a razor blade) but no material is removed. These cuts can be made in various widths and directions to enhance traction and get the tire up to temperature faster but can also be used to increase a tire’s longevity by helping it run cooler too. It is all in how the tire is cut.
Learning how to cut a tire with a tire groover and sipe your own tires is a bit of a black art, but a good racer will keep a logbook of modifications and can reflect on past track conditions to see what size groove and angle worked best previously. The same goes for tire siping. Often you can lean on a fellow racer for grooving and DIY tire siping advice or reach out to the tire manufacturer for suggestions on how its tire products react to certain grooving and siping cuts. Regrooving tires that have been sanded down and brought back to life is one way to save some money in your race budget too versus buying new rubber for your race car.
Built Tough to Handle Any Tire
Siping tires on your dirt racer takes some effort, but our Super Siper tire siping tool is built to take it. We start off with an ergonomic billet aluminum body for strength and attach a secondary grip point to the body that can take the pressure of cold-siping your racing tires. Then we finish it off with a curved nylon base that allows smooth movement across the tire’s contact patch. The Super Siper tool utilizes easy to source common utility knife blades for cutting sipes in your dirt track racing tires tread blocks.
Siping Your Tires Could not be Easier
Our Super Siper tire siping tool is unique in how you can set up the cutting blades. You can install a maximum of six blades, which are spaced .140-inches apart in groups of three with a 5/8-inch gap between the two blade groups. If you remove the center blade from each group, the spacing becomes .280 inches.
Depth is controlled by a pair of thumb screws for quick and easy depth adjustments. Generally, you will want your sipes to be 1/8-inch to 3/16-inch in depth and no more than 1/2 the depth of the tread block.
However, our Super Siper (depending upon the blade you use) can cut even deeper, which is great for off-road mud tires or winter truck tire use! Most racers will find having more sipes on the front tires and less on the rear is the best combination. Sipe spacing is also determined by the size cutting blades used, with the further apart the sipes the cooler the tire will run.
Make the Move and Start Improving Your Tire’s Traction Today
While siping your tires takes some trial and error and an ability to read a track surface, in the end, tire siping dirt track racing tires with additional sipes is just another tool in a racer’s toolbox of tricks and tips to help them get to the front of the pack and stay there until the checkered flag drops. It does not matter if you are racing a Late Model or Sprint Car, doing some competitive rock crawling, rally racing, or even mud drags, modifying your tires with our Super Siper tire siper is sure to benefit your racing program by providing the ideal tire, making your tires grip the surface better and put just the right amount of heat into them.
Application
This Part Fits
Sanctioning bodies that allow tire grooving/siping (in specific classes) include IMCA, Wissota, USRA, USMTS, UMP
WARNING: Cancer and Reproductive Harm -- p65Warnings.ca.gov
Specs
Sold in Quantity
Each
MFG. Part #
91082060
Reviews
Solid product
Rated
by 4x4 man on October 27, 2020
Summary:
Havent had any snow to really know how much it helped
Yes, I recommend this product.
beats using a utility knife!
Rated
by Brandon on March 05, 2018
Summary:
I have siped tires in the past with an adjustable utility knife. It was tedious and time consuming. While it did get the job done, this siping tool is 3 times as fast and a lot less effort while giving more uniform results. I only use one bank of blades so that I can get all the sipes lines up next to one another from one pass to the next. Also, on the particular tires I was siping (BFG TA/KO2) the rubber was hard enough that all 6 blades was too hard to push. The tires were fairly cold so warmer temps may change things. Also, a quick spray of silicone on the white base of the tool made it glide more easily. Overall construction of the tool is much better than I expected. This tool could have been built in the 1950's, it is that high of quality! This is my first experience with Speedway, but I'm sure it won't be the last. The tool is a win. I would stick with the 6 blade model as opposed to the one with more blades based off my experience.
Pros:
great build quality
Yes, I recommend this product.
Beast Tool
Rated
by D on June 28, 2016
Summary:
Tire siping made easy. This product is beast. 10/10 would recommend.
Pros:
Beast
Easy
Handy
Lightweight
Yes, I recommend this product.
I would buy again
Rated
by Mile on June 18, 2015
Summary:
Exceeded my expectations
Yes, I recommend this product.
This product is well built
Rated
by Jim53 on March 06, 2015
Summary:
This product is well built and simple to use the blades are easy to replace . The only thing that would make it five stars is if the blades could be lowered a bit more because it's difficult to sipn the tire when it still has the stubes on it .
Cons:
blades need to be able to extend more
Pros:
Simple to use
easy to change blades
Yes, I recommend this product.
Related Items / Suggested Parts
Speedway Super Siper Tire Siping Tool, Tire Cutting Tool
Econ-O-Siper Tire Siper, Tire Cutting Tool, Tire Siping Tool
Ideal 125 Grooving Iron Tool, Tire Groover, Siping, Siper Cutting
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About
Speedway Motors is America’s Oldest Speed Shop® and has been a trusted source for specialty rodding and racing products and friendly expert advice for more than 69 years. Founded in 1952 by “Speedy” Bill Smith – a racer and street rodder himself – Speedway has grown from a one-man operation to become the world’s largest manufacturer, distributor and retailer of street rod and racing products. Our industry-leading fast delivery is the result of same-day shipping from our state-of-the-art, centrally located 500,000 sq. ft. headquarters. Speedway’s size offers customers unmatched product selection and low pricing, while our excellent technical support and customer service have made us a recognized leader in the rodding and racing industries.
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