Tricycles have one of four types of tires: pneumatic, semi-pneumatic, tubular and wire-tied. All of these types have something in common…they are made of rubber and they wear out. Most pre-War tricycles that were actually ridden are in need of new tires, whether just for aesthetics or to actually make the tricycle functional. Read on to see what kind of tires you need and how to replace them.
Wire-Tied Rubber Tires: This type of tire has rubber with a wire in the middle. Often times, especially on the ones with less wear, there is a spiral pattern of “tread” along the tire. In heavily worn examples you may see a groove down the center of the tire and possibly even may see the wire inside. There is usually a small gap where the two sides of the tire come together.
At the left is an example of a 1930’s disc type wheel with a tied rubber wheel in pretty nice condition. If you click on the picture you can see a line at about 7 o’clock on the tire, which is where the two sides of the tire come together. This type of tire was used from circa 1900 through 1960’s, with production decreasing for this type at the end of that time period.
Re-tiring wheels with this type of tire is the most difficult. You will not only need rubber and wire, but also a wire-tying machine that is very scarce. If you don’t have a wire-tying machine, Brian at the Racycle Blog has developed a do-it-yourself method of re-tiring tricycle wheels that is pretty straight forward and even has a complete list of supplies and tools including a source for the rubber which is pretty hard to find.
For those of you who don’t have access to the tools, The author of the procedure is only a hobbyist, not a service pro, but he is willing to re-tire tricycle wheels on a case-by-case basis. You can contact him with a description of your project at the email address listed on the top right of his web log. Keep in mind the procedure is time intensive and will likely cost more than you’d spend on a couple of new tricycles from Wal-Mart, but refurbishing grandpa’s old trike is often worth the expense.
Semi-Pneumatic Tires: The next type of tire is the semi-pneumatic type. These tires usually appear to be solid rubber rings, but in fact have a small hollow center.
These tires are common on tricycles from the 1930’s through present. They are much wider and thicker than wire-tied wheels. Excessive wear of this type of tires makes the tricycle virtually unrideable. To replace this type of tire, cut off the old worn tire with a hacksaw and knife.
Once wheel is ready (painted, chromed, etc. to your liking) warm the tire in a large pot of boiling water to make the rubber more flexible. Then stretch the tire over the rim. We currently have a decent selection of sizes of replacement semi-pneumatic tricycle tires in stock.
Tubular Tires: These tires have a rubber tire that is separate from the tube and have a bead on each side that hooks into the lip of the rim, just like a bicycle tire. These type of tires are most common on the more modern tricycles and adult tricycles. Any bicycle shop should have the most common sizes to fit children and adult tricycles. Some manufacturers of the hefty or all-terrain tricycles with the large tires also use this type of tire, but finding a replacement might be easiest through the manufacturer.
Pneumatic Tires: These tires were most common circa the 1930’s and are a combination of tire and tube in one piece that is installed on the rim and inflated. Rims of tricycles that use this type of tire are similar to those that use semi-pneumatic rims, but they have a hole in the rim for the valve of the tire to go through. Pneumatic tires are also called balloon tires. They were the big puffy looking tires on many Streamlined Modern tricycles.
Replacement tires of this type of extremely hard to find and very expensive, and we do not currently have a supplier (or even know of one) for reproduction replacements.