Case of 50 700c tubes. 105g per tube. Available with 42mm and 60mm valve lengths.

STOP-a-FLAT offers a range of non-pneumatic inner tubes which are impossible to puncture. A simple one-off and low-cost solution. Ideal for children's bicycles, buggies, pushchairs, and cycle trailers. The latest high-tech solution providing hard-wearing, long-lasting reliability. It is inserted in the same way as a normal inner tube using your existing tire. - No more wasting money on tubes - Mounts quickly to most rims - Great for bicycles, trailers, and jogger/strollers

- Practical, tubed solution for flat prevention - 2 ounces of sealant in each tube helps eliminate most punctures and holds air longer, allowing more time between inflations - A premium, proprietary latex sealant formula - Contains multiple shapes and sizes of solid particles called nanites which quickly seal any hole, keeping air in the tire - Road kit include 2 RVC tubes, RVC tool, and 4oz of sealant

Continental Supersonic Tubes are super light so you enjoy less rotating weight for easier acceleration and climbing. Made of seamless butyl rubber, they are individually tested for top quality.

Continental Supersonic Tubes are super light so you enjoy less rotating weight for easier acceleration and climbing. Made of seamless butyl rubber, they are individually tested for top quality.

Continental Supersonic Tubes are super light so you enjoy less rotating weight for easier acceleration and climbing. Made of seamless butyl rubber, they are individually tested for top quality.

Continental Supersonic Tubes are super light so you enjoy less rotating weight for easier acceleration and climbing. Made of seamless butyl rubber, they are individually tested for top quality.

- 2-ply rubber shield fits between tire and tube to prevent flats - Pair

The Maxxis Downhill Tube can handle hard landings and rough terrain. If you don't like flatting, this tube's 1.5mm thick walls will keep you rolling through almost anything.

- The ultimate choice for flat protection - The tube is 5x thicker to provide unbeatable protection against even the most damaging - Tubes seek out and seal punctures as they happen - Put trust in your tires and ride without worries - Provides flat protection without significant added weight

Giant's downhill tubes are super burly to withstand all the DH abuse you can dish out.

Giant's downhill tubes are made from super burly rubber to withstand all the DH abuse you can dish out.

Giant's inner tubes are made from high-quality, standard weight rubber so you can keep on rolling.

Giant's inner tubes are made from high-quality, standard weight rubber so you can keep on rolling.

Challenge's S.C. Seamless Latex Cross Tube is hand made for the highest quality. Latex tubes are usually lighter and roll with less resistance than standard butyl tubes. They also resist punctures. The S.C. fits tires 28 to 35mm wide, and has a 47.5mm-long valve with a removable core.

Surly Inner Tube to fit a wide range of plus-size and fat bike tires. - Labeled Size: 26 x 3.0 - 4.8 - Weight: 310 g - Valve Core: Removable - Shaft Type: Threaded - ISO Width (mm): 76mm–100mm - Tube Compound: Butyl - ISO Diameter: 559 / 26-inch MTN - Valve: Presta Short 32-40mm

Challenge's S.C. Seamless Latex Tube is hand made for the highest quality. Latex tubes are usually lighter and roll with less resistance than standard butyl tubes. They also resist punctures. The S.C. fits tires 19 to 28mm wide, and has a 47.5mm-long valve with a removable core.

Giant's thorn tubes feature thicker rubber that prevents some punctures and flats.

Giant's inner tubes are made from high-quality, standard weight rubber so you can keep on rolling.

- Presta tube (700x20-25)

Bontrager's Race XXX Tubes are perfect for race day and fast training. They reduce rolling resistance and rotational weight for quicker acceleration and more speed. You want a pro trick? Add a touch of corn starch or talc to the tire for an even better ride.

This tube features high-density rubber for fewer flats.

This tube features high-density rubber for fewer flats.

Giant's thorn tubes use thicker rubber to prevent some flats and punctures.

Giant's inner tubes are made from high-quality, standard weight rubber so you can keep on rolling.

These Giant tubes include flat sealant for reduced maintenance.

These Giant tubes include flat sealant for reduced roadside maintenance.

Reducing rotating weight is one of the greatest improvements you can make to any bike, which is why Bontrager's Race X Lite Tube uses a 0.6mm wall thickness to keep the weight low. And, it's equipped with a removable valve core for easy sealant application and simple core replacement.

Continental Light Tubes are made of a lightweight seamless butyl rubber and are individually tested for top quality. These tubes are nearly 30% lighter than standard tubes to make your accelerate even faster and enhance the suppleness of your tires.

Continental Light tubes deliver less rotating weight for easier acceleration and climbing. Made of seamless butyl rubber, they are individually tested to insure reliable quality you can count on while shaving some grams from your favorite ride.