Challenge Latex Tube 700 x 23/28c, 48mm Presta Valve 

Latex inner tubes are far more supple than normal butyl tubes. They adapt quickly to the tire changing shape while cornering and rolling. The unique Challenge seamless latex inner tube saves more than 3 watts per wheel over a butyl inner tube according to German, Finnish, Belgian, Dutch, UK and Americal testing.

Challenge produces the only seamless 'one-piece' latex inner tubes on the market providing a smooth, balanced ride with no pucker or bump like those found on other tubes. Latex tubes are lighter, thinner and more flexible than a butyl tube, increasing your comfort, lowering your rolling resistance, and helping to prevent flats. The tube also includes a removable core Presta valve making them compatible with both inline and external valve extenders.

Advantages:-

• The only Seamless ‘one-piece’ latex inner tube on the market
• Seamless & smooth, no bumps at the valve
• No “out of round, unbalanced” wheel
• Improves rolling resistance and comfort
• Strong and extremely elastic, thus very reliable
• Improves resistance to punctures
• Is lighter weight than standard butyl and some superlight butyl tubes
• Has a two-piece removable valve core for valve extender use
• Two sizes: for Road/wider Road 19-28mm and for wider Road/Adventure 29-38mm
• By far the cheapest way of improving the performance and overall feel of your bike!

Lighter, softer, more supple

The lighter, softer, more supple tube reduces rolling resistance and improves comfort, traction and cornering. This is because latex extends and expands 7 to 8 times its original size, whereas butyl only about 1.5 times, which means latex is much, much more flexible, guaranteeing more speed, improving rolling resistance and comfort than a standard butyl tube. Latex inner tubes also weigh less than standard butyl tubes so can help save weight.

Puncture Protection System (PPS)

Latex tubes also increase puncture protection as the latex stretches and deforms around the body which is trying to penetrate the tube instead of, like the stiffer butyl, trying to resist the body and shortly after, being punctured through with a big blow.

The highly elastic latex material is extremely more difficult to puncture and in the unlikely case that it is, the air will anyhow come out very slowly, because the elastic latex, punctured at that point, will move slightly and still stick and conform to the object so not leaving a big tear and gaping hole. The slight leaking of air in that point means that if you are riding and have no spare, you may still be able to ride most of the way back while it very, very slowly looses air, but you won’t be stranded somewhere out there with a sudden flat!

Warnings and suggestions for optimal use

Latex is more porous and gas permeable meaning that a tire with a latex tube should be checked before every ride, to make sure that it has retained your desired pressure.

Installation of a latex tube can be tricky for the inexperienced hand. It can be more prone to pinch flats if not installed properly. The suppleness of latex means it can find its way into the smallest of cracks and holes and push itself in between and pinch. Latex is also somewhat sticky, which is why it comes with a coating of talcum powder to help it slide. In case the talcum came off and you found that the inner tube were sticky, you could add a little coating of talcum powder to eliminate this stickiness.

Top Features:

• Series: Latex Tube
• Use: Clincher Tyres
• Valve: Presta Removal core
• Valve Length: 48mm
• Weight: 60gm
• Valve Type: Presta
• Wheel Size: 700c(622)
• Commuter: Yes
• Touring: Yes
• Road: Yes
• Size: 23c-28c

Sizing Information:

• Size-700 x 23/28c
• Country of Origin-Thailand

About Brand:

Why choose Challenge? What’s the point in training till you drop if you’re going to be losing efficiency and speed in your tires?

Ride quality is paramount, and no other tire offers the supple, responsive traction of a Challenge tubular, eliminating barriers in achieving your maximum speed and potential. Supple tires not only offer a sublime ride, they reduce rolling resistance, and enable more precise handling and a greater range of pressures. They adapt quickly as the tire changes shape while cornering and rolling, which increases road surface contact and grip while cornering, plus shock absorption as you pass over irregularities in the road. We make Challenge Handmade Tires 100% in our family-owned factory in Thailand, 90 minutes down the coast from Bangkok. We are in Thailand because that is where our natural rubber and latex is sourced, where we can control the raw materials and where the world’s rubber and latex experts work.

Challenge tires' high-end, flexible casing provides superior grip and comfort with higher speed due to its lower rolling resistance. Challenge offer clincher or tubular options for Road, Gravel and Cyclo-Cross and in 2019 introduce some Tubeless (TLR) options in their range.