Bridge washer installation

[LibertySteve]

Is the bridge washer necessary if using a Coker inner tube that comes with the metal stem already attached or is the primarily used if cutting in your own metal stem to replace the rubber one?

 

[Mike Peters]

Brattons metals stem inner tubes come with a bridge washer and nut. What does Coker say about their metal stem tubes? Are we comparing apples to apples here?

 

[redmodelt]

It helps center the valve stem in the groove and keeps it from turning when the rim nut is installed.

 

[Gary Karr]

You will need to measure the length of the stem in the Coker tubes as it may be shorter and therefore if using a bridge washer, it will seat lower once installed in the rim.