Using it for about a week now no problems you do actually feel the added extra weight bike feels alot heavier
Thanks for your help (y)
I think you get 2 to 3 years out of it and then it probably becomes less effective so you have the weight of it but no benefit. I suppose you can add more in, perhaps you don't have to add as much second time around. Actually quite a good question if somehow you manage to keep a inner tube for a long time.