While the sidewall support is less evident than Tannus or Cushcore, it is certainly present and useful even at lower pressures. I have been struggling to figure out how this is accomplished and my best guess is that the large volume allows the insert to support the tire as a whole under cornering forces, rather than supporting directly at the sidewall (right or left) that is being subjected to corner stress. I am guessing that as the tire begins to roll, it is able to resist because the opposite side of the insert presses against the far sidewall, resisting deformation. Unlike Cushcore, this benefit diminishes greatly when you have a puncture, while straight line performance is undiminished, at least in the rear tire.
Is it Octamousse you've tried or a different one? If so, which model and size on what tire? Our experiences diverge significantly. I have no trouble installing Cushcore either so the install has little impact on my impressions. Cheers!
June 21, 2021, 9:12 a.m. - Cam McRae
While the sidewall support is less evident than Tannus or Cushcore, it is certainly present and useful even at lower pressures. I have been struggling to figure out how this is accomplished and my best guess is that the large volume allows the insert to support the tire as a whole under cornering forces, rather than supporting directly at the sidewall (right or left) that is being subjected to corner stress. I am guessing that as the tire begins to roll, it is able to resist because the opposite side of the insert presses against the far sidewall, resisting deformation. Unlike Cushcore, this benefit diminishes greatly when you have a puncture, while straight line performance is undiminished, at least in the rear tire. Is it Octamousse you've tried or a different one? If so, which model and size on what tire? Our experiences diverge significantly. I have no trouble installing Cushcore either so the install has little impact on my impressions. Cheers!