Postby hotshod » Wed Aug 15, 2012 9:09 am
I have now completed 4000 ks on the Hutch F3 setup, still yet to experience a puncture. The rear tyre is starting to square off a bit , but not excessively. My guess would be that the rear will get 7000k+ providing I don't experience any major failures or large glass/metal slashes.The front looks almost new after 4000..... still visable is the centre molding line.
Tyres hold pressure, dropping 2-4 psi per 48hrs.At 72kg I'm running 80/90psi and roll extremely well on Campag Zonda wheels ( not 2-way)
The only hiccup I have had was 2 weeks ago.....
I have a habit of tweeking the valve nut,almost every time I pump the tyres I wind or check the valve securing nut ,mostly it would be about one/20th of a turn, just a smidge if anything.
So when removing my floor pump chuck I pulled the valve through the rim,thus into the inner cavity of the rim...... followed by expletive after expletive and total loss of air.
The problem was resloved later that day by forcing the valve back though, it was torn and destroyed by then.
The valve was a Stans 44mm with a round stopper, and this valve had provided the best seal from my intial testing and setup.But it was of some concern that this could happen. I suspect this happen because I tweeked it too often and also the Campag Zonda rim ( non 2-way ) has a quite ovalised drill hole where the valve mounts. I guess this oval valve hole is why other valves had not sealed that well, my first valves were the Hutchinsons with a rectangular rubber stopper and they were tricky to get to seal , Stans were the best but maybe not perfect for this rim.
I have now installed 1 valve , not too sure of the brand , it is either a Shimano or Mavic, it has a rectangular stopper and rounded on the base where it engages with the rim, and is working well and would be impossible to drag thru the rim.... BUT it was not till after I had installed it I realised it didn't have a removable core, having a compressor that was not a big deal , but not what a I wanted,though if it works ,it works....
As for the Hutch F3 and clocking up 4000ks I think they are fantastic mostly for the way they ride and absorb broken road surface , the fact that I haven't had a puncture is a bonus, I can't see myself ever going back to regular HP clinchers, though I'm still waiting for more tyre manufactures to come on board with more tubeless options, till then the Fusion 3 is my tyre of choice.
Cheers
Greg
Alstonville
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