27.5 29 Inch Mountain Bike

27.5 29 Inch Mountain Bike Tube, 2PCS 27.5 X 2.125/2.4, 29 X 2.125/2.4 Bicycle Inner Tubes, 42Mm Presta Valve, 2 Tire Levers Included
Description Valve Type Presta Part Number 10C-1782-N Style 29 X 2.125/2.4 Material Butyl Rubber Wheel Size 29 Inches Item Diameter 29 Inches Package Weight 0.59 Kilograms Bike Type Road Bike, Mountain Bike Item Package Dimensions L x W x H 4.84 x 4.57 x 3.11 inches Size 29 x 2.125/2.4

TUBE SIZE: This 29” bike inner tube fits 29-inch bike tire, tire width between 2.125 to 2.40 (Please kindly confirm that your bike tire is 29inch before you buy)

WHAT YOU GET: 2 Pack 29x2.125/2.4 Bike Tubes with 2 Tire Levers, the Tire Levers can let you easily get your tube out from the tire when changing the tube

42mm Presta Valve Stem. Always get the correct measurements and valve type before buying and installing a new bike tube

HIGH QUALITY: Our bike inner tubes are made of high-quality butyl rubber material. Better air tightness, heat resistance, and durable. Suitable for most of road/mountain bike tire

NOTE: Remember to always add a little air (to give the tube form) to the new inner tube before installing it. This will prevent it from bunching up and/or causing a pinch flat or possibly blowing the tire off the rim (when you immediately and fully inflate) which ultimately will pop the tube

Product Description
Specification:
Size: 29” x 2.125/2.4
Valve Type: Presta Valve
Valve Length: 42mm
Tube Material: Butyl
Inner Tube for mountain, road bike with the same tire size. Package Include:
2Pcs 29” x 2.125/2.40 Bike Tubes
2 Pcs Tire Levers
Safe & High Quality：
The bike tube is made from premium butyl rubber material, with better heat resistance, duration and stands wear and tear for daily use. Easy to Install:
With our tire levers came up for free, in less than 5 minutes, you’ll be back on the trail or track! Replace the inner tube quick. Please follow inflation guide when airing a tire from a complete flat. These tire levers suitable for Most of Bicycles Wheels Common Bicycle, Like Mountain Wheels, Road wheels, Folding wheel groups and so on
Warming Tips:
1.Please kindly confirm the size of your bike tire before you buy, width between 2.125-2.40 tire.
2.Before inserting the new tube, make sure to check for sharp/pointed objects inside or embedded in the tire, that could puncture the tube.
3.Add a little air (to give the tube form) to the new inner tube before installation. This will prevent it from bunching up, causing a pinch flat or possibly forcing the tire off the rim.
4.Place the valve through the hole in the rim. Valve should stick out at a 90-degree angle. Screw valve cap on tightly and securely.
5.After installation, make sure the tube is fully inside the tire and not pinched between the tire and metal frame. Now you can inflate the tire to recommended pressure levels.
6.Check tire air pressure regularly; Try to keep your tire properly inflated as much as possible. Never overinflate and of course, don’t underinflate.
7.Avoid using a screwdriver or any sharp tools during installation to avoid accidental tube or tire punctures.
How to find the source of a puncture?
1. Take the tire and tube off the wheel
Remove the wheel by unfastening the handle holding the axle in place. Then, use a tire lever to get the tire off. Insert the lever between the tire and the rim and work it around. When the tire comes off, pull the tube out. Tips:
It may be easier to remove the tube if you let all of the air out.
2. Remove the object that punctured the tire if it’s still there
If the object is still there, it could re-puncture the tube when you replace it, wasting all your work. Sometimes finding the object is easy, like if a nail is sticking out of the tire. Other times, glass or small rocks get trapped inside the tire, so shake the tire out to get rid of any loose objects. Tips: Gently run your fingers along the inside of the tire to free any embedded objects.
If you have gloves, put them on to protect your fingers from cuts. Check the surface of the tube as well.
3. Pump up the tube and look for the hole
Do a visual check for the hole. If the hole is large, it should be easy to see. Check along the entire surface of the tube for obvious holes. Tips: Don’t stop looking when you find the first hole. If an object got inside the tire, it could leave multiple holes, so be sure to check the entire tube.
4. Listen for air escaping if you can’t see the hole
If the hole is too small to see with a visual check, bring the tube up to your ear. Give it a light squeeze to force the air out, and listen for a “seeping” sound to hear where it escapes from. Then, use these signs to locate the hole. Tips:
You still might not be able to pinpoint the hole, even if you hear the seeping sound. Use the water method to find its exact location.
5. Dunk the tube into a filled sink to see where bubbles come up from
If you still can’t find the hole, fill a sink with water and place the tube inside. Squeeze it so air escapes, and then check where bubbles rise up from. When you see the bubbles, you have an exact location for the hole.
6. Rim Inspection Inspect the rim strip whenever changing a tire or inner tube. Look for tears and rips, and make sure rim strip is centered over the nipple holes.
In the image, the rim strip is damaged, which may cause a flat tire. NOTE: Hole on inside edge of tube indicates a problem inside the rim
, such as from rim strip failure, a protruding spoke or other sharp object inside the rim.
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