Promoted as faster due to tread which creates wind vortices...per wind tunnel testing, and the faster you go (or the higher the windspeed), the greater the effect. Hard to say as I'm a 73 yo "never was," but it sure feels that way (possibly placebo effect). The 26 mm measures 26, narrower than I'm accustomed to, so higher pressure and a bit harsher on crappy chip-seal. Only complain was they were hard to mount tubeless on my Roval Rapide CLX II (21mm internal); couldn't seat beads even with compressor. Had to put in a tube for several days, and lost a lot of sealant around the edges before they finally sealed...to the point I didn't have enough to seal a tiny puncture on my 4th or 5th ride with it. My bad, but after first check, it was still hard to seat beads (and lost more sealant), so afraid to take core out again. Since then, all seems well.
Upon receiving the dynaplug pro repair kit I threw it in my seat bag and was off on a ride the next day. My buddy was running tubes and within 15 minutes he had a flat. Pull the wheel, fight with the tire, pull the tube, reassemble, reinflate-15mins pass. Back on the bikes riding and 2ish hrs later I get smacked with a flat. Significant gash about 1/8' long, tire sealant leaking out. Position the hole at 12 o'clock push a dynaplug in, push a second one in right next to it, position the hole at 6 o'clock for a few seconds and reinflate. Holding air no problem, back on the bike in 3 mins and finish out our ride no problem at all. Got home trimmed off the excess plug and been riding it for the past month.
If you read my review of the 1st Gen, G-One RS 40's then everything I said there applies here, but the 45 just adds more comfort, more capability on rougher terrain and even more smooth suppleness overall. The 45's weigh 552 and 550 and settled in at 46.1mm F and 46.4mm R inflated to 29 PSI F and 31 PSI R after a ride on Enve 4.5 SES, 25mm internal rims. Although they are heavy, you don't feel the weight so don't be put off by that, the savings in rolling resistance will far outweigh any weight penalty. The setup was a breeze and the tires are holding air well. These tires roll fast, corner well and have excellent grip. The 45's just amplify what the 40's offer, but will undoubtedly be faster than the 40 on rough surfaces.
Used this product on an unsupported 100 mile ride on road that had only cattle and sheep.
My fellow rider hit a cattle grate and blew her rear tire. She was running with tubes. She had a spare tub so I did not need to plug it. What cam in handy was the mini hose that I could attach her tube to the CO2 unit and get her rolling again. Two days later I got a puncture on a similar road (again 100 miles of unsupported terrain) and used the product again, but this time plugging the tire with the Dyna Plug and filling the tire with the CO2 unit. Love this set up.
