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SL 1050 downtube shifters

Posted: 18 Oct 2020, 5:22pm
by cooper_coleraine
I have these on my 1987 Raleigh Randonneur. They have become very difficult to move and I want to change them. They operate a triple chainwheel and a 6 speed freewheel. They are indexed. What do I need to replace them? I have a new set of SL-R400 8 speed shifting levers. Will these work?
many thanks.

Re: SL 1050 downtube shifters

Posted: 18 Oct 2020, 5:47pm
by Brucey
will 8s shifters 'work'? Not on a 6s setup, not in indexed mode. And indexed mode is the only mode you have got with RH SL-R400 levers.

Do you have band-on levers or braze-on type? If the latter, one screw retains each lever. The bezel (chrome piece) at the back of each lever may not want to come off, but then again it might be the same between the two different sort of levers as well.

FWIW I would lube the RH lever and adjust the tension in the LH lever. You may find that the old levers have life left in them yet.

chees

Re: SL 1050 downtube shifters

Posted: 18 Oct 2020, 5:52pm
by 531colin
I don't think 8sp levers will shift 6sp....although I'm prepared to be wrong!
However I have a pair of 6sp levers marked SL-S434 (switchable friction/index) which were working when I took them off, and still seem to be working, which I'm happy to swap for your 8 speed levers.
I guess you have tried oiling the stiff levers?
Aren't all the bezels the same? (except bar end different to D/T)

Re: SL 1050 downtube shifters

Posted: 18 Oct 2020, 6:15pm
by Brucey
531colin wrote:...Aren't all the bezels the same? (except bar end different to D/T)


in early levers I think they might be. However in later levers they are not; there are at least two different versions of the RH bezel. Always best to double- check!

cheers

Re: SL 1050 downtube shifters

Posted: 18 Oct 2020, 6:19pm
by rjb
It could be an issue elsewhere so check for stiction in the cables and the mechs. :wink:

Re: SL 1050 downtube shifters

Posted: 23 Oct 2020, 11:54am
by cooper_coleraine
Thanks for all your advice, offers etc.. Oiling helped. I notice a hairline crack in the bezel so there may be trouble ahead. The operation meets more resistance than I have been used to withdown shifters so I am checking the front derailleur and replacing the cable.