Tyre Pressures
dee4life2005
Posts: 773
I have a mate that is fairly new to cycling and he's taken to setting his tyre pressures really high. He's running Shimano RS10's with Michelin Pro 4 Endurance tyres (23mm) on his road bike. These tyres state a min. pressure of 86psi and max of 116psi. A few rides ago he was telling me how he had 130psi in both the front and back :roll:
Last night however, as he overtook me going down a hill, he stated that he was going faster because he had managed to put 152psi into them. And that's front and back!! (it had nothing at all to do with the fact he's nearly 3 stone heavier
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I've tried to tell him that exceeding the manufacturers max pressure isn't a good idea, and is a serious accident waiting to happen, but he just wont listen and keeps telling me how that's only a guide. Am I correct in this assumption? As I'm sure this is a Darwin award in the making.
btw. he's 14.5 stone so not exactly excessively heavy (I was running 95 front and 105 rear when I was that weight a year ago without any issues).
Last night however, as he overtook me going down a hill, he stated that he was going faster because he had managed to put 152psi into them. And that's front and back!! (it had nothing at all to do with the fact he's nearly 3 stone heavier
)I've tried to tell him that exceeding the manufacturers max pressure isn't a good idea, and is a serious accident waiting to happen, but he just wont listen and keeps telling me how that's only a guide. Am I correct in this assumption? As I'm sure this is a Darwin award in the making.
btw. he's 14.5 stone so not exactly excessively heavy (I was running 95 front and 105 rear when I was that weight a year ago without any issues).
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Comments
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Worth checking what pressure the rims are designed to take too.argon 18 e116 2013 Vision Metron 80
Bianchi Oltre XR Sram Red E-tap, Fulcrum racing speed xlr
De Rosa SK pininfarina disc
S Works Tarmac e-tap 2017
Rose pro sl disc0 -
If anyone knows the max pressure that a Shimano RS10 rim can take (with 23mm tyres) that would help, as my Google-fu isn't having much success.0
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about .001 of a bar before it blows itself off the rim...
are you 2 in this video...?Last night however, as he overtook me going down a hill, he stated that he was going faster because he had managed to put 152psi into them
http://www.youtube.com/watch?v=GMCkuqL9IcM0 -
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JGSI wrote:about .001 of a bar before it blows itself off the rim...
are you 2 in this video...?Last night however, as he overtook me going down a hill, he stated that he was going faster because he had managed to put 152psi into them
http://www.youtube.com/watch?v=GMCkuqL9IcM
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