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2025-06-30 09:07:56
Love these inner tubes! They are really light and easy to install in my mavic wheels - as shown in last 2 pics. The valve stem is really long and easy to attach a pump to. But my favorite part is the tubes have a small deflated volume and take up mush less room in my spare tube/flat tire changing bag under my saddle. My sprinter's thigh don't rub against the sides of the bag anymore rainy shorts! Great tubes!
Tommy
2025-06-24 14:59:35
So far very impressed with this product. I was warned about TPU tubes that they are not known for their reliability. However, in my experience this is not been the case. I've been on multiple gravel rides and these have held up well! No problems whatsoever!
Live Simple, Live Well
2025-06-12 17:10:05
Most 700c TPU tubes on the market specify use on tires between 18 and 32mm.This is a wider range that what is usually specified for butyl tubes, meaning that TPU tubes will be stretched pretty thin when used with the 32mm width tires that are ever more common on Road and All Road bikes these days.I’ve been using 18-32mm TPU tubes for a while on 32c tires and have found them reliable.But another option that may lead to an even higher level of reliability would be to use tubes where the MINIMAL tire size is 32mm rather than the maximum tire size. In that case, the tubes will be stretched WAY LESS and can be expected to maintain a much higher level of puncture protection and overall strength.That was why I wanted to test Spingo’s 32-47 mm tubes with 32 mm tires.Here’s my take on these tubes:PROS:Un-inflated diameter that will fit 32mm tires perfectly. About 5-7 mm larger diameter than 23-32c TPU tubes.Heavier gauge TPU material that is used on the vast majority of 23-32c TPU tubes.54 gram weight per tube, which is about 20 grams heavier than many TPU tubes that will fit 32 mm tires, but still about 80 grams lighter than lightweight performance-level butyl tubes.Very heavy duty valve stem to tube juncture. One of the best I’ve seen and I’ve tested more than a dozen TPU tube brands.Likelihood of way less air loss over time than would be the case with standard 36 gram TPU tubes.Few riders these days use 18-23 mm width tires, but LOTS of riders use 32, 35 and 38 mm. So these tubes may be more versatile for those who ride modern Road/All Road bikes with wider rims and tires.CONS:Polymer valve stem that seems poorly-constructed compared to the valve stems on many other TPU tube brands. One of the Presta valve locks on the tubes I’m testing completely unscrewed from the valve, which was easy to repair, but should not be necessary for the user to repair. On a relatively heavy TPU tube, why use such a lightweight and mid-level quality valve stem?The Amazon posting specifies that these tubes will fit 32mm tires. The material that comes with the tubes specifies that the minimum tire size is actually 35mm. There is always variance in actual vs specified tire diameters, so unless you know that your tires are narrower than spec, I think these tubes should work for your 32 mm tires.~~~~~~~~~~~~~~~~I have yet to do extensive reliability/longevity testing, but my initial sense is that these tubes are likely to be significantly more puncture-resistant, hold air better, ride just as well and overall be more reliable than comparable TPU 18-32c tubes. I have installed them on an All Road bike and will update this review if they prove to be less reliable than expected.
Alex
2025-05-05 15:43:05
I was afraid that they are gonna be easily punctured butand my continental trires are not the newest, but they are holding up really well.I cannot see how they loosing air faster than old rubber tubes. So it's a win for me.I used them for last season and this I ride 40-60 miles per week.
Iz B.
2025-03-26 18:39:05
Terrible quality. The valve broke in the middle of the ride for absolutely no reason. I was riding on a clear street; no branches, no rocks, no bumps .. nothing.
Harvey
2025-03-23 12:13:46
Good price, but luckily I had 2 in my bag for my last ride. Got a flat used tube #1, but the valve stem broke during inflation with a hand pump. The plastic threaded end broke off as shown in the picture. Replaced with the 2nd tube and used CO2 inflation, being EXTRA careful with the stem and completed the ride… I don’t have a long term view, but they are light and cost effective, but be careful with the stems.
ACC
2025-03-04 10:15:06
Great tubes with long stem
Michael Birkhofer
2024-12-03 15:29:20
Tube itself seems fine. however, plastic valvestem has MAJOR issues.first, there is no metal nut to brace the valvestem in place. so you need to support it by pressing into the tire, and holding it in place when placing the pump onto the valve.second, the plastic brakes at the screw on point. any tension from the pump, any contact from screwing on the cap, etc.I found the tire was losing air consistently over the course of 8hours. didnt identify the source, until a month or so later, after constantly having to refill the tire every time I rode. (and keep it elevated, so it wasn't sitting on a flat). eventually went out to ride, and found the stem just broken off entirely.unclear if temperature was a factor here. put on tire during fall, in northern usa. 40f nights, 60-80f day. broken off entirely, was winter. 20f nights, 40-50f days.
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