Reviews over the

Aktiv-8 Race

they don't have a wheel on the rim so are going to rattle

True to expectations

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Good experience with it and inner valve is fixed so you don't unscrew it with some pumps

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Had no experience with it did not know the brand

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These inner tubes do what they are supposed to do. Sturdy and reliable.

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Product known by me. Fully in line with my expectations.

Does what it needs to do.

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No problems with it yet, for this price an excellent product.

I have actually been riding with these inner tubes for years, they are just fine. Undoubtedly there are tubes that roll better, but I haven't experienced it yet, I've even won races with them. They are also wear-resistant because last week I had to put in a new one after the previous one had lasted about a year.

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Been using this Inner Tube for years no negative ervary

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Easy to use

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It's just a good inner tube. Which I only use when my tubeless wheels are out of seals

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Does what it needs to do

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What a super compact package this tire is, super convenient for the saddle bag, takes up very little space. My other 25-28mm inner tube is a lot bigger and has to be stuffed into the tire a bit more. This tire seems a bit too small at first; even had to stretch it a bit to get it into the tire. I read another review about this possibly being detrimental to the thickness of the rubber (gets a little thinner then) and thus perhaps the puncture susceptibility. Then again, I can't exactly compare that.

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Good straps for a very good price

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good tires for the price you pay for them

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Fitted with my Graphen 2 in 25 tires

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I strongly doubt that this is 25/28 mm. When you inflate the tire in the outer tire it feels very empty at first ! I fear that at 6 bar this tire will become very thin ! I hope it will be okay but I have my doubts.

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Achat rapidz

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Product arrived very quickly in well made and protective packaging. I haven't assembled it yet but it feels great to the touch.

I notice little or no difference with more expensive inner tubes. Does what it is supposed to do.

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Fast delivery

Just good tire for good price

Fine inner tube, not expensive, performs top notch. More than adequate for a budget basic bike.

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Price quality. A good inner tube

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Used this item before, no problem. Does what it is supposed to do!

Just way a good band.

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product fully meets my expectations

Good product and fast delivery. Well-priced. I highly recommend Mantel!

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It's an inner tube, what can you say about that? In any case, that it is an inexpensive inner tube that does an excellent job. Doesn't puncture easily and always handy to have with you on the road. For the purists, it may be too heavy an inner tube, but if you take a sip from your water bottle, the extra weight of the inner tube is also settled.

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Good quality inner tube at an affordable pricew

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Fine valve and can last a long time

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Always bought these (4+1) because of the nice black smooth valve, now delivered with thread, of which 4 come in the familiar green box and 1 in a vague plastic bag with no info

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All ok

Cheap and good quality, easier to mend

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Arrived in Belgium within 2 days. Convenient size, valve included. Not tested yet, but know from past experience that the quality is good. Cheap price, at the bike shop you pay €7.5

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Fine inner tube.

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Good puncture resistance at a great price

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Basically no nonsense tyres at the right price.

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Good and reliable product

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Well, it's an inner tube. Can't find anything nefarious. Puts on just fine. But jazz all inner tubes do.

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Easy to fit in the outer tyre

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Valve full-length thread Valve colour is silver

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Fine cheap inner tube , great spare for roadside breakdowns. My version did come with ring and cap. Also the valve is 'in one piece' so my mini pump can be attached to it without fear of unscrewing the valve after inflating.

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Good fitting inner tube,I only buy this one again

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Matches expectations, even exceeds them because the 47mm do have a thread which was not according to description. So price-quality even better.

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Good use,as per expectations

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Good, no problems with it.

Simple cheap inner tube. Itt what Mantel says by the description, the version I received today 23/2/22 does have thread, cap and screw to secure the valve. I have attached a photo so you can see what it looks like and how it is delivered. Fine actually! In one of the photos of mantle also shown with screw thread. So there seem to be multiple versions, or it's an update? I have the set of 4+1 of 60mm.

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These products are PRIMA !!! Nothing wrong with them .

Just inner tubes at a low price, time will tell.

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Good inner tubes at a good price.

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Does what t has to do, may rattle because there is no nut on it. This is easily solved by pulling a small piece of tape over it

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good product

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Top straps, price-quality is perfect.

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Great inner tubes at a great price! Definitely worth it and will definitely order them again if I need them again!

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Always been fine inner tubes. After an upgrade, now no longer usable as the valves are not 80mm but 70mm making them just too short. (Detail, no longer black but silver)

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Out of 5 tyres 3 leaking at the valve

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Excellent inner tube

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Totally what I was looking for. Fits well on the bike. Good guidance from Mantel when ordering to find the suitable tyre for my bike (Villiger racing bike) which was not so easy after all

good tyres, been driving with them for years

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If you fill the tyre with a cartridge then if it's frozen solid you can quickly bend the valve. Otherwise fine for the price and have been users of these inner tubes for years

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Cheap tyres but excellent quality

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Fine inner tubes but can't compete with e.g. Schwalbe's or Conti inner tubes. Two punctures in a fairly short time, plus a blow-out while inflating. The valve is a bit more sensitive and there are some deformations around the tyre, causing it to bump a bit. Some inner tubes did not suffer from this and were fine. For the money, fine, but if you don't like replacing tyres along the road, go for a more expensive inner tube.

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The valve is too slippery, causing the pump to pop off when inflating.

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Very good price

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Good inner tubes at an excellent price. With the Advantage package you have no excuse not to carry a spare. If I ride flat, I replace it and the one that's broken goes away. For that price, I can't fix it

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2 tyres in a row that had a hole in the same place. Fresh out of the box, put 0.5 bar on to test the tyre and the tyre has a hole. So already broken in the box.

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cheap and good quality, no valve ring but not needed either. Even cheaper if you buy 5

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Great inner tubes at an extremely reasonable price. Had my first puncture after two years but that was due to some kind of miniature prehistoric fist bite. This tyre couldn't do anything about it. Ordered the same one again straight away.

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Great inner tube to carry as an extra when I'm out and about. Sturdy and long-lasting.

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Fine tyres. Although I can't say too much about them because I really hardly ever go flat (once every 2500 km or so). In combination with the Corsa Control, they are perfect for me

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Not the lightest, but does the job. Well put together and did not smell too bad

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Good value for money

Fast delivery and product completely satisfactory!

Great inner tube, for and really good price. Fast delivery.

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easy and simple inner tube

After a week of cycling, the tyre is already broken at the point where the valve is attached to the tyre, so very bad

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Some tyres unload at valve

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What to say about inner tubes? Great quality and fast delivery

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Great inner tubes for Wider Depth Carbon Wheels (mine are currently on a 42mm wheelset and these are perfect)

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Good tubes only gripe is that there is not a securing nut for the valve stem. Excellent service from mantel

Came as part of a bundle with Continental Tyres GP 5000. Cheap tubes. Not as good as the Continental version. Pity Conti inners aren’t supplied.

Holds the air. Good cheap tube.

Great value in a pack of four tubes. Good quality, only riden on them twice but so far so good.

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