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    Continental 42mm Presta Valve Tube, Black, 700 x 20-25c
    Continental 42mm Presta Valve Tube, Black, 700 x 20-25c
    Continental 42mm Presta Valve Tube, Black, 700 x 20-25c
    Continental 42mm Presta Valve Tube, Black, 700 x 20-25c
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    Continental

    Continental 42mm Presta Valve Tube, Black, 700 x 20-25c

    3.3
    HK$ 425.00
    HK$ 425.00
    HK$ 702.00
    Sold out
    Save 39% (HK$ 277.00)
    You can't add more than 500 quantity.
    Order within 00 hours and 00 minutes
    to get between .. - ..
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    • Tracked Shipping on All Orders
    • 14 Days Returns

    Description

    • PREMIUM INNER TUBES - Preferred by champions and riders worldwide
    • VULCANIZED TUBES- All Continental Tubes are seamless and mold cured to ensure uniform roundness and better reliability at the valve stem.
    • QUALITY TESTED- Every Continental Tube passes a stringent 100% quality control inspection.
    • UNITUBE- Continentals Unitube system allows greater compatibility with more tire sizes and less tubes.
    • REMOVABLE VALVE CORES - Useful for adding extenders or using Revo Sealant.
    Read more

    Shipping and Returns

    • We offer tracked shipping on all orders. Tracking information will be shared as soon as the order is dispatched.
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    • Available shipping methods and charges will be displayed at the time of checkout, depending on your exact location.
    • All customers are entitled to a return window of 14 days, starting from the date of delivery of the product(s).
    • Customers are advised to read our return policy for details of the return process, eligibility, refunds as well as cancellations or exchanges.
    • In case of any issues or concerns about Shipping or Returns, please contact us and we will be happy to help.

    Customer Reviews

    Popped before I ever rode on itI am, at this moment, following the continental official video instructions step by step. I installed the front tire. As I went to install the back tire, 2 minutes ago, I hear a hissing sound. And all I thought was no way, all the other reviews said these were defective but it can t be that bad. Sure enough, the front tire is now empty, 5 minutes after installing it.I m not even going to bother installing the back tire.Edit: I was about to Improve my rating, as I had ridden two 20 mile rides without the second tube popping. And then 1 mile into my third ride the tire popped. 1Bad Valves, Don't BuyI've ordered at least 10 of these over the last couple of years and the failure rate on the valves is over 50%. There's definitely something wrong with the design or there was a bad batch. I didn't make the (simple) realization that it was always this model of tube failing until I had them distributed among half a dozen bikes. The valve cores don't seat right so they pop out. Or sometimes they won't seal, leading to deflations ranging from days to seconds. Continental has been good for me in the past so I was a bit surprised. But I'm going to trash all these and go with something else. 1Continental Race 28 vs Michelin Airstop RoadThis is my comparison of the Continental Race 28 (42mm) and the Michelin Airstop A1 (52mm) both in 18-25 sizeBoth are nice products with actual confirmed weights of 97g, which are not the lightest but certainly not the heaviest on the market. According to my weigh-in, the Continental Race 28 comes in at 98g including the threaded ring (which weighs 1g) so all being equal they are the same weight (unless you're a total weight weenie)Michelin Airstop: Nice tire with non-removable valve cores and a smooth copper stem. The valve stem lengths are either 40mm or 52mm. Unfortunately the 40's get through a standard aero wheel (Mavic cosmic) but are still slightly short and the 52's are a bit on the long side, so I opted for the 52s (which came in at the same weight as conti's 42s). Seems that the physical tube is a bit snugger fitting in the tire around the valve stem than the continentals but overall no issue installing. Tire is also coated for easy installation.Continental Race 28: Removable core and threaded silver stem which, to me is a bit concerning as the cores frequently come out when unscrewing the pump (as many have pointed out) and despite locking them in tightly with a wrench, is less than mentally comforting when changing a flat on the side of the road. Valve stems are a nice length at 42mm for standard aero wheels and also comes in a 60mm which is a touch too long for standard aero wheels. Tire is not coated but installs easily.Overall they are both very nice tires with the primary difference being the valve stem. If you want a solid non-removeable core, go for the Michelin if you prefer removable threaded go for the Conti. Can't lose with either as both are reputable brands and the physical tires are nice in either case. 4Some are defectiveI have purchased five or so of these the past few years, and two of them (purchased at different times) have had manufacturing defects -- having too much adhesive material in the area where the valve connects to the tube. This defect made it impossible to get tube seated properly in the wheel, so the tire literally wouldn't fit into the space between the rim and the valve. One of these occurrences created a huge headache when trying to fix a flat out on a ride. I'm not sure if these are old stock, or slightly defective stock, or whether conti tubes just have weak manufacturing quality control, but I will not buy more of these. Never had a problem like this with another tube in 20+ years of much bike riding and flat fixing. 2Disappointingly low quality. Didn't work right out of the boxI'm new to road bikes. I bought a cheap, $200 bike to alleviate some of my fuel usage, since riding to work takes roughly the same amount of time as driving. I managed to go two weeks before I popped my original rear tire on a pothole. Bought this as a replacement hoping it would last me at least a few weeks with no issues. By the end of day one my tire had gone completely flat, which struck me as odd. Tried re-inflating it a couple of times, but got the same result. Pulled the tire and partially inflated it in a bucket of water. There's a small pinhole in the seam just below the valve. Tire patches don't seem to be working since the ridge is too high and textured to allow them to adhere snugly. I guess that's what I get for buying one of the cheapest options available. Do yourself a favor and opt for something a bit higher quality. 1Not the lightest but good mix of light and durableI've been using these tubes for about 2 years now and haven't had any issues with defects. All of the flats that I've had on my road bike have been from something puncturing the tire and tube. There are lighter tubes out there but these are a good mix of light + durable. The 42mm valve stem is fine for my Campagnolo Zonda wheels. These tubes have a valve stem nut that's great when installing the tube to keep it in place. 5I have had very good luck with Continental products and was very disappointed with ...One of tube failed within the first 25 miles. I have had very good luck with Continental products and was very disappointed with one of the two tubes I installed. Not only did it develop a large rip and the valve stem did not remain in the valve when we attempted the repair (two problems made for a unpleasant tire change on a busy road). .... 1holds the finest pumped air you can put into itSo I have this bike. It has wheels and on those wheels are tubes and tires. The bike resides on the trainer so the tires and tubes don't see much rough terrain, but it does see heat and wear. I went through a few tubes and patches earlier this year until I added another rim strip to cover the area where it seemed a spoke nipple was rubbing through. Oh, who am I kidding, it wasn't a rim strip, I just left the rim strip that was there and added some gorilla tape over that upon the recommendation of my local bike shop. After doing that little mod, I added this tube and a new trainer tire and so far all is well. 5One is good, the other failed after <10 milesI thought I was getting a quality inner tube for my bike. I was able to install front and back inner tubes easily on my bike with two Continental Grand Prix 4000 S II Clincher Road Tyre. I went for a ride that was less than 10 miles and then stored my bike. I came back the next day and my front tire was completely flat. I took out the inner tube and lo-and-behold there was a small hole on the opposite side of where the valve was. I honestly don't think this was a problem where I went over a needle or something because the tire didn't have a hole. The hole is only on the inner tube it is where part of the seam is for the valve. I'm assuming this is a quality control issue and I am extremely disappointed.My rear tire is still holding air, so that's the only reason I give this 3-stars. I think that I just got one bad inner tube and wasted $7 for one. I don't plan to purchase this again. 3Decent tubesThese are pretty solid tubes, my guess is that people are putting them in wrong and pinching the tubes at some point during installation, hence the negative reviews. I myself popped a tube as I was pumping it right at the valve. That's the only part of the tube where it's hard to make it sit right in the rim tape after installation. I found out that after you have the tube in and inspected everything is sitting on the rim tape, you're supposed to push up on the valve then back down so that part of the tube near the valve is sitting in between the tires and in the rim tape so it doesn't pinch on one of the sides while you're pumping. In all honesty though, tubes should last a long time if you have a good set of tires. Instead of spending so much on tubes all the time I'm going to invest in some Gatorskin tires.Something I wish I would have known before I went through like 6 tubes for one tire is when you're putting the tire bead back on that very last couple of inches is extremely hard to get onto the rim. But whatever you do, try NOT to user tire levers here! That's how I had so many punctures in the same spot. Instead, squeeze the tire from both the halfway points on each side and keep squeezing and going up. This creates some slack in the last couple of inches to which point you can mount the tire bead onto the tire BY HAND. 4
    Continental 42mm Presta Valve Tube, Black, 700 x 20-25c

    Continental 42mm Presta Valve Tube, Black, 700 x 20-25c

    3.3
    You can't add more than 500 quantity.
    HK$ 425.00
    HK$ 425.00
    HK$ 702.00
    Sold out
    Save 39% (HK$ 277.00)