2-Pack TPU 700C×18-32C Bike Inner Tube, Ultralight (ALLRoad
✅ PROS
- Genuinely ultralight — roughly 35g per tube, saving 150-200g per wheel vs standard butyl
- Packs down to about the size of a golf ball, ideal for saddle bags or jersey pockets
- TPU holds air noticeably better than latex — holds pressure for days, not hours
❌ CONS
- Installation is finicky — TPU is slippery and pinches easily; first-timers will waste one
- Valve core is non-serviceable on this model; if it fails, the whole tube is done
- Material is unforgiving with sharp debris — glass and flint cuts through faster than butyl
The Verdict
The 30-gram question: Is TPU worth the hassle?
Every gram-obsessed roadie and gravel rider has stared at their 120g butyl tubes and wondered. The ALLRoad 2-pack TPU inner tube answers with a spec sheet that looks too good to be true: roughly 35g per tube for a 700C×18-32C size. That’s a savings of 170g per wheel versus a standard butyl tube — nearly three-quarters of a pound off your rotating mass for under $30. But lightweight comes with tradeoffs, and this 4.0-star product (200 ratings) has a few stories to tell.
What’s actually in the box
Two TPU tubes, each with a removable-core Presta valve (though “removable” is doing some heavy lifting — more on that later). The tubes arrive folded into a compact square about the size of a deck of cards, which gives you a sense of the packability. No patch kit included, no tire levers, no instruction booklet. If you’ve never touched TPU before, you’ll want to watch a YouTube tutorial first. As one buyer put it: “These are 10x easier to pinch-flat during install than latex. I ruined one just learning how to handle the slippery material.”
Performance on the road
Once installed correctly, these tubes ride differently than butyl — in a good way. The TPU material is stiffer than latex but more supple than butyl, translating to a slightly harsher ride at the same pressure. You’ll feel more road texture, but you’ll also feel faster acceleration. That rotating mass savings is real, noticeable on climbs and sprints. The tubes hold air impressively well — a 90psi fill stays rideable for four or five days, which puts them far ahead of latex and on par with butyl.
Where ALLRoad cuts corners
The valve core is the weak point. It’s technically removable, but it’s soft aluminum that strips easily with standard valve tools. Multiple reviewers reported snapped cores within the first month. You can’t swap in a replacement core either — the threads are proprietary. If the valve goes, the tube goes. The other issue is puncture resistance. TPU is thinner than butyl by design, and sharp debris finds it easier. One gravel rider noted, “First ride on a chunky section and I got a snakebite through the sidewall. My old butyl tubes survived the same trail for two years.”
Who should buy this
This is a race-day or weight-weenie tube, not an everyday commuter tube. Buy it if you’re a road cyclist chasing PRs, a gravel rider on smooth-ish terrain, or a touring cyclist who wants a spare that disappears into a jersey pocket. Skip it if you ride through glass-strewn city streets, weigh over 200 pounds (the thin material stresses more), or you’re not comfortable with fiddly installations. If you do buy, order a third tube as your practice piece — you’ll likely sacrifice one learning the install technique.
FAQ
Q: Can I patch these TPU tubes? A: Yes, but only with TPU-specific patches. The material doesn’t bond with standard rubber vulcanizing glue. ALLRoad doesn’t include patches, so buy a TPU patch kit separately.
Q: What pressure range do they handle? A: The 18-32C width covers road and light gravel. Run 80-110psi for 25C road tires, drop to 60-70psi for 32C gravel. Don’t exceed 115psi — the material stretches dangerously thin.
Q: Will they fit my rim? A: The 700C×18-32C sizing fits most standard road and gravel rims with those tire widths. If you run tubeless-ready rims, these work as emergency backups but aren’t ideal for daily use.
The Verdict
Buy it if you’re a weight-conscious road cyclist who wants a genuine performance upgrade and doesn’t mind a learning curve. The 170g per wheel savings is tangible, and at this price, it’s the cheapest speed upgrade you’ll find.
Skip it if you ride through rough debris, prefer set-and-forget reliability, or you’re replacing a tube at the roadside in the dark — TPU is not the tube you want when your hands are cold and dirty.
Rating: 4.2/5 — Great performance, questionable durability, honest value for the weight savings. Just buy spares.
Where to Buy
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Last updated: 2026-08-06. Ratings and prices current as of review date. Verify on Amazon before purchasing.