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If you have tubular wheels, you don't have much choice but to... ;)

@Woz @pigman @jim haseltine Thanks for your help and the links as to how to do this. I found a bike shop in France that sells NOS cogs as singles/doubles etc. including a 13t & 14t double and doesn't charge the earth for postage (buying direct was cheaper than eBay). Drop me a line if you want a...

Tig welded, not lugged?

Week 9 and final bike: Tommasini Tecno. So this is my ‘one ring to rule them all’ moment! My go-to bike whenever its dry. It’s the best steel bike I’ve ridden: the frame soaks up every bump, yet the feel is taut like a bow string. If you’ve ever driven a well-balanced sports- car or sailed in a...

Thank you!

https://www.ebay.co.uk/itm/196260657644...

https://www.ebay.co.uk/itm/145625186808?mkevt=1&mkpid=0&emsid=e11021.m43.l1120&mkcid=7&ch=osgood&euid=252e7d66bbf0412d921a18f60b9022a9&bu=43097393174&ut=RU&osub=-1%7E1&crd=20240221054701&segname=11021

I'll take that!

I tracked down the owner of the pics and the original ebay listing. The FB Marketplace listing is a fake and it demonstrates the need to check profiles fully and to err on the side of caution with high value purchases, especially if you can't inspect the goods.

With some online detective work I tracked down the owner of the bike and pics who listed it on ebay originally and contacted them. He has confirmed it is a fake/scam listing on FB Marketplace as it's still in his keeping.

Had a look thanks.

Thanks for that @pigman : yes looks like you have Compact body and cogs, which means they won't screw onto a Course body since the larger cog screw diameter you have is likely 38mm. Tricky beasts! The search continues...

@pigman Quite understandable!: can you confirm that the 13/14 has a diameter of 42.2mm (ref Woz 's article for MC twin cogs) if I've understood it correctly to be compatible and a pic would be appreciated. I've seen some Maillard twin cogs with differing diameters of 32 & 38mm which suggests...

Listing been up for 2 weeks and no reply. So is it a Fake (listing) or a Fortune (to be made)? You decide! https://www.facebook.com/marketplace/item/1290941245641773/?referralSurface=messenger_lightspeed_banner&referralCode=messenger_banner Word of warning, pics previously featured here...

@pigman according to the article Woz kindly posted, the doubles listed that might be suited and that were manufactured are: 12-13, 13-14. 16 is the next one on my 5 speed, so looking to minimise to 2-3 teeth max jump? if removing the current smallest cog on the 5 speed Maillard, which is a 14.

Thanks @Woz : It made a lot of sense though I think the final instruction was a little concerning!: And crack, the sprocket ends up giving way and unscrewing... Otherwise, the thread is in reverse!

Weight -weenie special, cut down seat post, no need for binder bolt and a saddle-xxx grams saved. Now goes faster uphill. Job done!

Thanks @pigman If you have a 12-14, or an 11-13 double that would be ideal to give it a go.

Week 8. 1970’s Viner Stella Special a.k.a. "Viner Stella Professional", one of the "Stella Special Professional Framesets". So it's my wife's birthday coming up back in 2019 and she asked me for a new Viner set. Thought I'd surprise her with something a little more exciting and engaging than...

Thanks for the info. Given the uncertainties involved, I think it's expedient to search for a ready-made 6 or 7 speed French threaded freewheel, but appreciate the option.