May 31, 2016, 12:50 p.m. -  Brad_xyz

#!markdown After wrecking around 10 tubes, 2 tires and 1 carbon rim from rock strikes / snake bite this year (many of them on Ned's and all on the rear wheel), I am stoked about the procore concept. I've been using it in the rear for around a month now on both an aluminum and a carbon rim. So far so good. I'm over 220lbs riding weight, so 23 psi in the back seems to be the sweet spot for North Shore trails for me right now. This is on a Schwalbe Nobby Nic Snakeskin 2.35″. Any less and it feels mushy on landings and sharp, fast corners, especially on my narrower aluminum rim. For wet winter NS riding I need all the traction I can get but the cost in tires, tubes and rims was getting high enough that a gamble on procore seemed worthwhile. My LB 30 mm inner carbon rims say they are rated for 70 psi so hopefully they can take the pressure. As far as I know, very few aluminum or carbon rim manufacturers have officially approved the used of procore. There have been some stories of carbon rims exploding, but I have not seen one example of that where it was obviously cause by the extra pressure. The bigger consideration for me is whether the rim is too deep for the procore valve. I think a lot of carbon rims would be too deep. Fortunately with the LB rim I have there is just enough thread. I don't see any reason the air guide would not work with gorilla tape, although I have not tried it. My biggest concern would be if gorilla tape could handle the extra pressure, especially with only one wrap or if it would blow out into the spoke nipple access holes.