What Our Gearhead(R) Experts Are Saying:"I added the Muc-Off Hey Dipstick to my workshop kit and it has completely changed how I approach tubeless maintenance. Sliding it through the valve and pulling it out with a clear sealant reading takes about thirty seconds and means I actually check my levels before rides instead of just hoping for the best."Tubeless tires are one of the best upgrades you can make to a bike, right up until you forget to check your sealant and end up with a flat you could have prevented. The Muc-Off Hey Dipstick is a small tool with a straightforward job, and it does that job better than anything else available. Slide it down through the valve stem, touch the bottom of the tire, pull it out, and the machined indicator grooves on the 304 stainless steel dipstick tell you exactly where your sealant level stands without breaking the bead, removing the tire, or making a mess. The CNC-machined 6063 aircraft grade aluminum body and knurled handle give the Hey Dipstick the kind of feel and durability that belongs in a proper workshop toolkit rather than a one-use novelty. It works with Muc-Off Big Bore valves for the cleanest pre-ride experience, and with standard Presta valves after removing the valve core. Once you know what a full sealant level looks like on your dipstick, a quick mark with a pen gives you a personal reference point for every check going forward.