upped the PSI - had 2 puntures in a week?
Discussion
Hi guys just a quickie - got the team carbon with its skinny road tyres. Been fine cycling to work since Jan and had no punctures since last week. Been keeping the tyres inflated with one of those cheapo hand pumps from halfords, could never get much more than 50 psi and kept blowing the pump valves so bought a proper stand up pump with gaugue.
Put 90 psi in both front and back, the front tyre punctured the first day i used it (about 4 days ago) and the back punctured on the way to work this morning! Been fine since Jan with 50ish psi in.
Was getting annoyed with 50 psi as it was slowing me down and i'm sure it contributed to the wheels buckling.
Do you guys get issues with 90psi plus? Should i put 100psi plus in?
Cheers!
Put 90 psi in both front and back, the front tyre punctured the first day i used it (about 4 days ago) and the back punctured on the way to work this morning! Been fine since Jan with 50ish psi in.
Was getting annoyed with 50 psi as it was slowing me down and i'm sure it contributed to the wheels buckling.
Do you guys get issues with 90psi plus? Should i put 100psi plus in?
Cheers!
Edited by exgtt on Thursday 15th July 11:50
What sort of punctures? Sharp object or rim pinch? Higher pressures make you more susceptible to sharp objects penetrating the tyre (as it doesn't deform round them), lower pressures make you more susceptible to the innertube being pinched by the rim when you hit a pothole/curb/etc.
Since you've raised the pressures I'd guess you're getting sharp object punctures - unlucky mainly but your tyres could be worn, so thin and not quite so puncture resistant.
Since you've raised the pressures I'd guess you're getting sharp object punctures - unlucky mainly but your tyres could be worn, so thin and not quite so puncture resistant.
Thanks guys, i'll up the pressure to 120psi tonight with 2 new innertubes and see what the crack is.
Both puntcures were really tiny single holes. No debris/thorns in either tyre and no snake bites that would indicate pinching.
Probably unlucky, will do some testing this weekend! Both tyres have about 300 miles on.
Both puntcures were really tiny single holes. No debris/thorns in either tyre and no snake bites that would indicate pinching.
Probably unlucky, will do some testing this weekend! Both tyres have about 300 miles on.
I think it's just bad luck, I cycled to work and back (7 miles each way on poor roads and cycle paths) with not a single puncture for nearly 2 years.
Just started doing it again and got 2 punctures within 2 days. Both were small cuts not pinch flats.
I've just got some even skinnier road tyres (1" 1/8th) for the MTB which run at nearly double the PSI of my last set (90 psi) so i'll see how it goes.
My theory is that higher psi tyres will ping debris out of the way rather than run it over but we'll see
Just started doing it again and got 2 punctures within 2 days. Both were small cuts not pinch flats.
I've just got some even skinnier road tyres (1" 1/8th) for the MTB which run at nearly double the PSI of my last set (90 psi) so i'll see how it goes.
My theory is that higher psi tyres will ping debris out of the way rather than run it over but we'll see
Had another 4 punctures since my last post! Front then back, front then back. Both had 120 psi in, both never showed evidence of debris or slashes or cuts in the tyres, looks very much like rim pinch given lack of any foreign object.
Really annoyed! Gonna try 2 new tyres and 2 new tubes as it can't be both rims at fault surely!
Average speed has gone up with the psi increase so I'm not giving up till both tyres hold pressure!
Really annoyed! Gonna try 2 new tyres and 2 new tubes as it can't be both rims at fault surely!
Average speed has gone up with the psi increase so I'm not giving up till both tyres hold pressure!
Mmm, that pretty crap. Have you thoroughly cleaned the rim inside and checked for burrs etc. Might be worth replacing the rim tape too if it seems a little tired.
Touch wood so far no punctures since I got my new high pressure skinny tyres. Just as well really as they're a nightmare to get on and off!
Touch wood so far no punctures since I got my new high pressure skinny tyres. Just as well really as they're a nightmare to get on and off!
100 psi is about right for me
Are the tyres worn - 7 months at not optimal pressures could have worn them out pretty quickly, you might need new rubber!
Get something with a puncture resistant construction (like the Vittoria Open Corsa CX or similar). Cheap tyres are cheap for a reason.
Are the tyres worn - 7 months at not optimal pressures could have worn them out pretty quickly, you might need new rubber!
Get something with a puncture resistant construction (like the Vittoria Open Corsa CX or similar). Cheap tyres are cheap for a reason.
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