top mount 7-spd indexing downtube shifters, super rare??
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top mount 7-spd indexing downtube shifters, super rare??
My 1980s Panasonic came with top mount downtube friction shifters for six speed. I'll be upgrading this bike to as much RX100 as I can get my hands on (thought about older dura ace, too specialized). I've got the rear wheel with rx100 freehub, rx100 rd ready to go.
I started looking around for top mount downtube shifters, 7 speed indexing, and I can find almost nothing. Looking at the velobase archives, I see Shimano manufactured top mount models for SL-1051 (105) and SL-6400 (600 -- see links). I'd love to find either of those.
Can anyone help with this search? Recommendations, advice welcome. Please tell me I'm not stuck with Suntour Symmetric.
thanks
https://www.velobase.com/ViewSingleCo...m=104&AbsPos=8
https://www.velobase.com/ViewSingleCo...=104&AbsPos=14
I started looking around for top mount downtube shifters, 7 speed indexing, and I can find almost nothing. Looking at the velobase archives, I see Shimano manufactured top mount models for SL-1051 (105) and SL-6400 (600 -- see links). I'd love to find either of those.
Can anyone help with this search? Recommendations, advice welcome. Please tell me I'm not stuck with Suntour Symmetric.
thanks
https://www.velobase.com/ViewSingleCo...m=104&AbsPos=8
https://www.velobase.com/ViewSingleCo...=104&AbsPos=14
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The only alternative is to have a frame builder remove the current boss and braze on more conventional side mounted bosses.
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The OP's frame has a single shifter mounting boss brazed to the top of the down tube that requires a specific design shifter. These are increasingly hard to find and I don't know if any were made beyond the 7-speed era.
The only alternative is to have a frame builder remove the current boss and braze on more conventional side mounted bosses.
The only alternative is to have a frame builder remove the current boss and braze on more conventional side mounted bosses.
-- Would a suntour symmetric even fit the Panasonic mount?
-- I came across a pic of the adapter below. Anyone know where to get one?
thanks
Last edited by Flash; 02-20-09 at 10:01 PM.
#5
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This won't fit the boss but it might work. https://www.loosescrews.com/index.cgi...d=474303727371
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This won't fit the boss but it might work. https://www.loosescrews.com/index.cgi...d=474303727371
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reuse old mount
Could you unscrew just the levers from your old top mount attachment? This should expose the threaded part that holds the shifter. Then you could use just the levers from any other 7sp. set. Leave out extra curved adapters used for the downtube application.