Modern indexed downtube shifters (10) on a steel frame.

[Dolan Driver]

Re:

Thanks. I had settled for probably getting an Ultegra 6600 rear derailleur but was keeping an eye on a very clean 7800 front and rear derailleur set that was going for a good price on ebay. Managed to get them at 6600 RD prices last night, even if I had to stay up till 3am to secure it with a late bid. :facepalm:

Can anyone recommend a band-on adaptor for the front braze-on derailleur (28.6)? I see that I can get a metal mount in 28.6 from Taiwan in silver or get a current production adaptor in 34.9 and get a plastic shim for underneath. Which is better, can anyone say?

The silver one might look better on the frame!

https://www.aliexpress.com/item/3265005 ... lsrc=aw.ds

DD.

 

[pigman]

Re:

You buy the adaptor the correct diameter to suit the frame tube. So if 28.6 is the tube size, that's the one. Buying an oversized one and shimming it is a make-and-do bodge in my opinion. Plenty out there for about a fiver

 

[hamster]

Got a 32mm Shimano adaptor in silver if useful. £5 posted.

 

[pigman]

Re:

One here too, altho you might want to ask him to reconsider his postage charge which is excessive imo

https://forum.cyclinguk.org/viewtopic.php?f=32&t=141933

 

[Holiocornolio]

Re: Re:

Thanks for the info on the 7800 levers. I wasn't aware of them. Downtube levers certainly aren't cheap but I guess investing in decent gearing components will pay off. The frame and forks are "free" given that they languished in my shed and were destined for the scrap heap until I considered a possible restoration.

I wish the RL340 brake levers had a white hoods option but black hoods with silver levers will do.

What diameter clamp do I need for a Renyolds 531 frame for the front derailleur? It is a band-on instead of a braze-on derailleur required, I see 28.6 and 31.8 being mentioned in measurements for various derailleurs.

DD.

If I'm not wrong 28.6 (1 1/8") would be the correct size for a band on derailleur for a regular reynolds framed bike.

 

[Dolan Driver]

I hadn't realised this project is three years on the go. The frame has been painted and looks like it is safe to once again use on the road. Today, I dropped the frame and forks into my local bike shop to have final components fitted, along with brake and gear cables and bar tape. I hope to get the bike out for one or two spins on dry roads before winter hits.

DD.

 

[drgeeman]

Will the inherent flex from a Reynolds 531C frame have the gears skipping all over the place or will it be fairly OK

I put together an old 531C I had in the shed and built up with 1x11 speed sram force groupset and rode it for a week in Colombia and it never missed a gear. It's now my favourite bike, after riding 3500m it up Atlo de letras I wouldn't use anything else for long rides. (that said I found this thread looking at indexing my next bike the 753 TI-Raleigh Anniversary Edition)

 

[georges1]

I have sl 7800 on my peugeot , check on ebay for sl 7900 downtube shifters, they are not cheap but they do the job very well , reliably and smoothly