· Each tube has info, easier to distinguish(size, logo, model no., etc.)
☆ How to test the quality?
Inflating the inner tube, then put it into water, slowly rotate and check if have leaking issue.
☆ How to choose the correct inner tube?
A. Inner tube spec
The inner tube size choice depends on the bike tyre, firstly check your bike tyre side remark (as following pictures showed).
For example:
①For 26×1.95 bike tyre, fit for inner tube 26×1.9/2.125;
②For 24×1.5 bike tyre, fit for inner tube 24×1.5/2.215;
③For 700×38C bie tyre, fit for 700×35-43C.
B. Inner tube valve type and spec
Valve type depends on the valve hole size of rim, valve length depends on the rim wall length.
FAQ
Q1: Why are some new tires have white dirt on the surface?
When rubber foam products from the mold out, there will be a non-toxic environmentally - friendly white powder to facilitate the release.
Q2: Why is the inner tube fully inflate and uneven expansion?
The rubber at the valve is a little thicker, and the rest is thinner. The thickness of inner tube is not exactly the same, the pressure is the same, lead to the expansion is different. After assembling, it can be uniform under the force of the bike tire.
Q3: How do you guarantee the quality?
Inner tubes are consumables, when you receive the products, please MAKE SURE to do the leaking inspection before assembling. (Check the products first, if there is a leakage problem, it can be returned, it can not be returned after a period of use.)
