While up for a visit at one of our favorite bike parks, Brian Parker—owner, rider and guru behind Mynesweepers—got our crew set up with his tire inserts for some testing. The idea came to Parker just a few years back when he kept breaking sets of carbon fiber rims. Parker was determined to develop a solution that would provide rim protection, perform well and be affordable. As a result, a straightforward closed-cell-foam insert was created. It is no secret that tire inserts are becoming a hot item for riders who like to push the limits. With some big players already in the game, we were eager to put the simplified Mynesweepers tire inserts to the test.
Tech features: The material used is a lightweight, closed-cell foam that is cut to the size of the rim. The foam insert then uses what is essentially surgical tubing to keep each end together. Currently, Mynesweepers offers three tire-width options: 2.2–2.4 inches, 2.5–2.7 inches and 2.8–3.0 inches. There are also three rim diameters to choose from: 26-inch, 27.5-inch (650b) or 29-inch wheels. Noteworthy is that each set is made to order (by Brian himself), so a rider can choose the size/diameter needed. This is ideal for the rider who is running mixed tire sizes and widths. For $59, you receive two custom-cut inserts that are ready for installation. Not included but highly recommended (more on why coming up) are Mynesweepers’ vaulted valves, starting at $20 a set.
Field test results: For installation, we evaluated the tire dimensions and rim width to pick the appropriate size insert. Before the foam is inserted, it is crucial to use the correct valves. The Mynesweepers’ vaulted valves have side ports that allow air and sealant to flow around the insert. A conventional tubeless valve will likely be blocked by the insert, making it difficult for air to flow in and out of the system.
From there, each side of the tire is unbeaded so there is enough room to install a Mynesweepers insert and valves. Another item of importance is a cutout in the foam where the valve will be to provide aid with airflow and sealant movement. Working with this main cutout is another relief port on the opposite side of the valve. With the insert placed into the tire and both beads on the rim, it’s best to air up the tires to seat the bead before adding your preferred sealant. When all steps are followed in order, the Mynesweepers inserts are relatively easy to install in comparison to other options on the market.
On the trails, without a doubt we could feel the advantages of the Mynesweepers; however, we could’ve been blindfolded and wouldn’t know the difference between the brand of tire insert being used. We ran around 3–4 less psi than we would without a tire insert. We experienced noticeably more traction on tires we wouldn’t normally choose. We also could feel the assist in sidewall support from the Mynesweepers when pushing speed in and out of corners. Overall, the inserts did what they were intended for. There is no sophisticated engineering involved and no advanced materials are required for this tire insert system, but that is the beauty of Mynesweepers. It really is a straightforward application that embodies the idea that not all bike products need to reinvent the wheel or be developed with space-age technology to supply value and offer performance advantages.
• Affordable with simplified performance compared to other brands
• Simple install when guided steps are followed
• Vaulted valves not included
STAR RATING: ★★★★½