Downtube shifter adapter

[Wingslover]

I'm overhauling an 80 LeTour and thinking about ditching the twin sticks for downtube shifters. As there are no braze-ons, I wondered if an adapter would be worth it (and if size matters). Thoughts please?

 

[GTs58]

You can find the complete set up of NOS Huret clamps with the levers, friction plates, cable ect. on eBay for less than 25 bucks. Need to verify your tubing size to get the right shifter clamp diameter.

 

[detroitbike]

1 1/8" is the Letour downtube dia.

 

[Wingslover]

Thanks, you two; much appreciated.