whats going on with this chain?& hub

Regarding the long pin on your master link, that's the nature of manufacturing. About all you can do is file the pin down or replace the master link.

wing nut said:

...also i asked my bike shop dealer for a hd hub spokes& rim he brought out a very heavy one with double walls & 12 ga spokes the hub says shimano cb-e 110 ...im familiar with the cb 110 ..but not the other ..any difference?..thanks in advance

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25 Grams or so

the E is just the model designation letter. all the shimano coaster brakes since about 1982 are E110's.

the CB stands for coaster brake, the E is the latest model, and 110 is 110mm.

the previous model, the D hub is basically the same, except the coaster brake arm has a squared off oval hole, whereas the E has a star shaped hole where it connects to the brake cone. and the hub shell seems more heavy duty on the D.

in my opinion, the D models were better. but they ain't easy to find.

on your masterlink, you have the outer clip on it, right? looks like a thin, split link plate that snaps in? should be 3 pieces to your masterlink. that's why it's got longer pins, unless yours is a defect.

no problem...