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Post by Martin on Oct 11, 2023 20:32:22 GMT
I know these tyres are past it and will be replaced. Are they tubed or tubeless?
If they do have tubes is it possible to replace them with tubeless?
What's the thoughts on best replacements?
Thanks folks.
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Al
Full Member
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Post by Al on Oct 12, 2023 8:07:35 GMT
I stand to be corrected Martin, but I'm pretty sure you can't use tubeless on the Comstar wheels. The later (reverse Comstar) were tubeless though. If I'm wrong, someone will be along shortly to put us right 😂.
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Post by Martin on Oct 12, 2023 15:38:12 GMT
I stand to be corrected Martin, but I'm pretty sure you can't use tubeless on the Comstar wheels. The later (reverse Comstar) were tubeless though. If I'm wrong, someone will be along shortly to put us right 😂.
Yeah going by the info I'm getting I think you're right.
Thanks
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willy3pigs
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Posts: 326
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Post by willy3pigs on Oct 12, 2023 16:32:23 GMT
Not knowing any better at the time, I fitted tubeless to my CM250's Comstars a few years ago, and in my blissful ignorance rode around for a few months before joining this forum and finding out there's some debate on the matter. A couple of thousand miles later after no issues with my 250CM, I fitted tubeless to my 400 after I rebuilt it.
I do have a slow leak on the front of the 400, about 2psi a week, I suspect a poor seal on the bead as I remember I failed to clean the inside of the rim as well as I usually do when I fitted the tyre. I'm not recommending anybody else to do likewise, but it seems to have panned out for me OK so far, and it makes roadside punctures less of a drama..
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Al
Full Member
Posts: 148
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Post by Al on Oct 12, 2023 18:30:58 GMT
To actually answer your question though Martin, the tyres you have are definitely tubed. The nut on the valve gives it away as that's a tube valve.
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Post by Martin on Oct 12, 2023 19:57:15 GMT
Not knowing any better at the time, I fitted tubeless to my CM250's Comstars a few years ago, and in my blissful ignorance rode around for a few months before joining this forum and finding out there's some debate on the matter. A couple of thousand miles later after no issues with my 250CM, I fitted tubeless to my 400 after I rebuilt it. I do have a slow leak on the front of the 400, about 2psi a week, I suspect a poor seal on the bead as I remember I failed to clean the inside of the rim as well as I usually do when I fitted the tyre. I'm not recommending anybody else to do likewise, but it seems to have panned out for me OK so far, and it makes roadside punctures less of a drama.. Thanks Willy, this is interesting and seeing some other posts saying you can put tubes into tubeless tyres, I’m thinking something I could try is fitting tubeless and I’ll have tubes to insert if they don’t seal. Tyres, tubes, tubeless I’m getting dizzy. 😵💫 |
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ian
Member Of The Year 2019 
Isle of Man
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Post by ian on Oct 13, 2023 19:15:15 GMT
Back in 1977 I was made redundant, had another job to go to, so spent the money on a set of Cobra Superslot alloy wheels for my TR6. I didn't have them long before they started losing tyre pressure. The cause was porous alloy - a common problem with alloy wheels in the early days. The cure was to fit tubes even though the tyres fitted were 'tubeless'. Had that car another 25 years & several sets of tubeless tyres fitted with tubes & never had any issues. Same with the bikes we've had with spokes or Comstars.
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