Author Topic: TPU Inner tubes  (Read 15694 times)

Re: TPU Inner tubes
« Reply #125 on: 14 April, 2024, 03:05:06 pm »
- the braking is objectively terrible - the bike slows down a little but it just doesn’t stop - there’s no “bite” and a lock up would be impossible - I’m starting to think that it’s actually dangerous and I’m not confident on the bike.

If I can help, I will where (approximately) do you live?
"Ott's Law states that the worst weather will coincide with the worst part (for that weather) of any planned ride"

finch

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Re: TPU Inner tubes
« Reply #126 on: 14 April, 2024, 03:16:13 pm »
East Lothian

Re: TPU Inner tubes
« Reply #127 on: 14 April, 2024, 03:49:18 pm »
 :'(  :'(

Too far for me sorry. I would be looking to see if something is stopping the movement of the pads (other than the disc).
"Ott's Law states that the worst weather will coincide with the worst part (for that weather) of any planned ride"

finch

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Re: TPU Inner tubes
« Reply #128 on: 14 April, 2024, 04:05:49 pm »
When the disc isn’t present they close up nicely - Clark’s CHM-08. Initially I thought they were much better than the promax ones but in real world conditions they’re just as bad. I’ve now got a bunch of pads and a second set of discs that have all been basically useless. I spent ages trying to bed them in properly and on one set even tried brake goo that’s supposed to both speed up the process and increase friction. Had a couple of quite scary moments out there today so the bike - which isn’t old - is being retired until I have the bits or resources to try again.

Generally if I’ve had an issue I’ve been able to fettle it back to good but I’m utterly defeated - I feel like chucking the whole thing in a skip - which I’m obviously not going to do

Re: TPU Inner tubes
« Reply #129 on: 23 May, 2024, 11:37:57 pm »
Well, I've just put my first TPU inner tube onto a bike. I got a fairly obvious staple like piece of metal stuck in a wide gravel tyre (48mm), and it was mild and warm weather, so thought I'd try one of the TPU ones I was carrying. They're packaged as RideNow but Amazon sells them from "Cyclami Ltd".

The price seems fairly typical for cheap(ish) TPU tubes on Amazon, £25 for 2 when I bought them, but have gone up by £1 now. They're 45g each, but I suspect that's simply because they're quite large inner tubes, for larger tyres. A pack of two was still about half the size on one traditional inner tube!

They were a little fiddly to get on, but I think that was just because the tyres are wider than most of my bikes and I didn't inflate them enough to position them well on the rim. Once I put a touch more air in them, they stayed in place more easily and worked OK.

Now we just have to wait, and see what their performance is like. :)
Actually, it is rocket science.
 

Re: TPU Inner tubes
« Reply #130 on: 04 June, 2024, 11:21:49 am »
Ive just pulled the trigger on some TPU tubes. After a puncture fest on RatN Im switching out to endurance casing and TPU for an event next month that has some off road and Ill be carrying a double load of supplies so more strain on the tires. Will report back.
often lost.

Re: TPU Inner tubes
« Reply #131 on: 04 June, 2024, 05:40:12 pm »
In retrospect I wish I had bought TPU specific patches and glue at the same time as going to TPU tubes. Some of them do come with self adhesive patches.

Also, having wrecked a TPU tube by over-inflating it "outside" (rather than in a tyre, on a wheel) wondering about using circles of that old TPU tube, as patches.

"Ott's Law states that the worst weather will coincide with the worst part (for that weather) of any planned ride"

Re: TPU Inner tubes
« Reply #132 on: 04 June, 2024, 06:44:56 pm »
The RideNow ones I bought each came with a couple of self adhesive patches.

Re: TPU Inner tubes
« Reply #133 on: 04 June, 2024, 08:07:20 pm »
The RideNow ones I bought each came with a couple of self adhesive patches.

The RideNow patches that I have, have a cutout in the middle of the patch. I assume you have to line up the puncture with the middle of the side of the remaining doughnut.

Anyone know?
"Ott's Law states that the worst weather will coincide with the worst part (for that weather) of any planned ride"

Kim

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Re: TPU Inner tubes
« Reply #134 on: 04 June, 2024, 08:41:33 pm »
Valve reinforcement?

Re: TPU Inner tubes
« Reply #135 on: 04 June, 2024, 09:01:27 pm »
Valve reinforcement?

Could be, perhaps Horizon can let us know if that is viable... mine are in use!
"Ott's Law states that the worst weather will coincide with the worst part (for that weather) of any planned ride"