ROCKBROS Ultra-Light Bike Tire Tube TPU Inner Tube with 65/85mm Presta

Product Features:
Lightweight Design:TPU inner tube significantly reduces weight and accelerates more sensitively giving you a light feedback every time you step on it
Portable Convenient:Small size and easy to carry Compact easy to store
Strong Compatibility:One specification is compatible with most wheel heights simplifying the complexity of selecting and carrying spare inner tubes
Low Rolling Resistance:TPU inner tube is lighter and softer with less friction on the outer tire
Compared with traditional butyl rubber innertubes,thevolume is reduced by nearly 70%, compact and easy to store
There is only one ring of joints aroumdthe valve to reduce the possibility ofair leakage.lake sure you don tneed to pump up frequentlyeven for long rides
Warm reminder: The above information is all manually measuredand the inner tube may have an error of about 2g, which is a normalphenomenon, Please purchase carefully if you mind.Note:24g is the weight of the valve cap removed.
This inmer tube camotbe inflated in large quantitieswhen the outer tire is not installed, otherwise it willcause irreversible damage, Please inflate slightlybefore installation to check for air leakage. Inflate asmall amount during installation. When inflating,make sure that the inner tube is attached to theinmer wall of the tire, and then press to adjustthe inmer tube
Vacant pup 23 timesand not more than 0.5 barIf it exceeds 0.5 bar, it will causeexpansion and canot be repaired
Inner tube tire changeinstallation steps
Please refer to the standardized tire replacement steps forreplacement to avoid damage to the inner and outer tires
1.Remove the tire and pry open the outer tire, removethe old inner tube,clean the outer tire andcaref
2.The inner tube is slightly inflated to prevent folds whenloading the tire and prevent the tire from being scrapped
3.The valve passes through the pores of the rim, graduallyloads the inner tube into the outer tube, and gently straightensthe inner tube by hand to prevent folds/tire clamping
4.Load the outer tire into the rim and press itto check to prevent folds/tire clamping
Reminder :
If the last short secti oh
is difficult to load, you can use the tire prying rod
5.Inflate and check the inmer tube,and theinstallation is complete

Precautions for theuse of inmer tube
1. Before installation,clean the inside of the outertirefirst to avoid sharp sand and gravel remaining in thetire from piercing the inmer tube.
2. It is normal for the new inner tube to be ueven afterinflation, because the rubber of the inner tube is different in thickness, and the valve will be thicker. whenthe pressure is the same, the expansion size is alsodifferent, After installation, it can be used normallyunder the package of the outer tire, which is not aquality problem.
3. Damage to the inner tube caused by improper installation, non quality problems such as air leakage afteruse,cannot be returned or exchanged.
4. In order to ensure the service life, please do not expose to the sum for a long time.
5. The iner tube is a consumable product. If you encounter problems within 7 days of receiving the goods,please contact us in time.



High Airtightness:one ring of joint around the air nozzle reduces the possibility of air leakage and ensures that there is no need for frequent pumping even during long rides