any clicking/ratcheting dura ace friction shifters?
05-17-22, 03:49 PM
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any clicking/ratcheting dura ace friction shifters?
I'm cobbling together a 7400 dura ace groupset for my Miata build but I love the clicks of the suntour powershifters too much to swap those to dura ace. Did any dura ace friction shifters ratchet or click like the suntour powershifters? I know they had an indexed mode which I don't care about.
05-17-22, 03:52 PM
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No. Just index or friction for downtube shifters.
05-17-22, 08:30 PM
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I'm cobbling together a 7400 dura ace groupset for my Miata build but I love the clicks of the suntour powershifters too much to swap those to dura ace. Did any dura ace friction shifters ratchet or click like the suntour powershifters? I know they had an indexed mode which I don't care about.
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05-18-22, 05:24 AM
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Ummm...
https://velobase.com/ViewComponent.a...=104&AbsPos=64
From the description:
https://velobase.com/ViewComponent.a...=104&AbsPos=64
From the description:
Shimano's non-index, racheting downtube-mount shifting levers. Rachet system operates nearly identical to that of the old Suntour racheting barcons, but with a much finer feel.
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05-18-22, 06:43 AM
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05-18-22, 06:46 AM
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05-18-22, 06:48 AM
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05-18-22, 07:00 AM
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https://velobase.com/ListComponents....6-c32b5f57987c
it should be easy enough to step through the available shifters and find others (assuming they exist).
05-18-22, 07:03 AM
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05-18-22, 07:36 AM
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Am pretty sure that SL-A400 shifters are index 7 speed rear with a friction option, friction front. Have used these in indexing mode but not friction so can't speak to the ratchety feeling.
SL-R400's are the same but in 8-speed without a friction rear option.
Same design used on late 80's Deore BL-6434 shifters, nice ratcheting action on the front and 6 speed indexed for the rear with a friction option. When set to the friction rear option, these have a slight ratchety feeling.
SL-R400's are the same but in 8-speed without a friction rear option.
Same design used on late 80's Deore BL-6434 shifters, nice ratcheting action on the front and 6 speed indexed for the rear with a friction option. When set to the friction rear option, these have a slight ratchety feeling.
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05-18-22, 01:24 PM
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The bar-end shifters above are of the "Unishift" type, seemingly with a "retrofriction" silent one-way clutch, so about as good as it gets!
Shimano offered them as downtube levers as well. with short rubber tip covers., possibly offered in one variant with the "Dura-Ace" name on the clamp (also supplied in large numbers to Schwinn, which got attached to a headset-mounted "stem shift" bracket featuring a pivot axis that passed in front of the steerer/quill axis for better positioning).
The first M700 shifters, part of the "stag"s head" gruppo, also employed the UniShift mechanism, and were artistically crafted using a good number of well-polished castings/forgings.
From left: Shimano stem levers with bi-directional clicks; UniShift downtube levers; Unishift levers on a Schwinn headset bracket.
On a barely-related note (in order to help fight the mighty return spring in Campagnolo's Gran Turismo rear mech), I once fitted long, ratcheting stem levers onto a suitable downtube clamp:
Shimano offered them as downtube levers as well. with short rubber tip covers., possibly offered in one variant with the "Dura-Ace" name on the clamp (also supplied in large numbers to Schwinn, which got attached to a headset-mounted "stem shift" bracket featuring a pivot axis that passed in front of the steerer/quill axis for better positioning).
The first M700 shifters, part of the "stag"s head" gruppo, also employed the UniShift mechanism, and were artistically crafted using a good number of well-polished castings/forgings.
From left: Shimano stem levers with bi-directional clicks; UniShift downtube levers; Unishift levers on a Schwinn headset bracket.
On a barely-related note (in order to help fight the mighty return spring in Campagnolo's Gran Turismo rear mech), I once fitted long, ratcheting stem levers onto a suitable downtube clamp:
11-12-22, 10:06 AM
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Update: picked up a set of NOS SL-7700 dura ace shifters. The front is friction only but the rear toggles between “light action” and 9 speed indexed. The light action has very fine clicks, not quite as pronounced as suntour but I really like them. Index clicks are very crisp too
11-12-22, 10:13 AM
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Update: picked up a set of NOS SL-7700 dura ace shifters. The front is friction only but the rear toggles between “light action” and 9 speed indexed. The light action has very fine clicks, not quite as pronounced as suntour but I really like them. Index clicks are very crisp too
11-12-22, 10:33 AM
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I think the 7400/7700 series is the sweet spot for eroica. You can get a hub that supports both uniglide cassettes as well as modern hyperglide cassettes so you don’t feel bad building a new wheel around them. Then you can use the the 7700 shifters to easily toggle between friction and index. You can ride 9-speed indexed year round on a modern, smooth shifting HG cassette then swap to friction mode and throw on a UG cassette for eroica!
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11-12-22, 11:21 AM
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