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Old 06-23-10, 10:30 AM   #1
rodar y rodar
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Rd-7700 (9), rd-7400(8)

Cryptic title aside, I`m not sure I understand the compatibility on a set of used bar end shifters I just bought. The sticker says compatible with RD-7700 (9s) & RD-7400 (8s). I THINK the deal is that the 7400 was the "wierdo" DA stuff and that these shifters should index "regular" Shimano 9s. Do I interpret that correctly?
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Old 06-23-10, 10:40 AM   #2
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Whoa, a surprise! While playing with the front shifter I just noticed that it only moves half travel. Did Shimano make double only bar ends?
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Old 06-23-10, 10:55 AM   #3
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Care to tell us what bar-ends you're on about?
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Old 06-23-10, 10:59 AM   #4
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You mean a model number? I don`t see one on the levers- just that sticker and the index/friction markers.
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Old 06-23-10, 11:06 AM   #5
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Quote:
Originally Posted by rodar y rodar View Post
Whoa, a surprise! While playing with the front shifter I just noticed that it only moves half travel. Did Shimano make double only bar ends?
Okay, that one is straightened out- the famous out of position ring thingie was why it didn`t rotate the whole way. Anybody know if the model number is hidden away somewhere? I`m guessing it is there, but I can`t find one.
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Old 06-23-10, 11:14 AM   #6
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You've got the SL-BS77 (aka Dura-Ace 9-speed bar-end shifters). I put a set of those on my bike and the rear shifter had the same sticker. The rear will shift 9-speed spacing with any Shimano rear derailer other than Dura-Ace 6/7/8-speed (7400,7401,7402) for which it will actually shift 8-speed spacing, since those models of Dura-Ace RD use different geometry and have different cable pull requirements.
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Old 06-23-10, 11:42 AM   #7
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7400 RD and shifters are incompatible with anything else but friction. It has different cable pull (the rd, and to match that also the clicks from the shifter are different)
I have 7400RD with DT shifters SL7402, 8sp uniglide DA cassette
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Old 06-23-10, 06:42 PM   #8
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Thank you, Bob and Asi. Looks like I won`t have any problems then.
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