Customer Reviews

Shimano SL-BS79 Dura Ace Double Bar End Shifters (10-Speed)

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These seemed to be supplied for bike mechs., not consumers. As the other reviewer pointed out, they will probably fall apart before installed, and then you need to know how to corectly re-install the rachets and rings - and I didn't see any instructions in my box. I didn't find it difficult to figure out, but I've played with barcons before. For someone with novice experience with these type of shifters, it could get very nasty. Otherwise, they work great.

The instructions provided by Shimano for the DA BS79 bar end shifters tell you nothing about which way round they should go, or how to fully install with cables, tensioned, indexing for front and rear derailleurs. The front(?) shifter fell apart during assembly. I only eventually twigged that this was the front shifter when I realized it was friction and the other one was indexed. But this is the fatter one of the two and the instructions say the fatter one goes on the right bar, for the rear derailleur. That's what you'd think was the intuitive way . . . but it isn't.

Once they've fallen apart there is a variety of ways to mix and mismatch them, and you would think either the instructions or the website would have abundant troubleshooting advice, but silence reigns from both quarters.

If you like mystery and adventure in installing advanced technical equipment then do buy them. If you want intuitive, or detailed step-by-step instructions with troubleshooting advice then try some other product.