Help needed understanding Campagnolo 7sp/6sp Freewheels /OLN

I was fortunate enough to acquire a rather nice alloy Campagnolo 7sp screw-on freewheel. I really want to use it with a set of LF Record hubs from the same period for a mid-eighties Super Record build. The hubs I have have a 130 OLN and they 'appear' to fit with very minor force into my frame. Although I'm happy with the fit I now need to understand if there is enough space for my 7sp freewheel. I realise one way to find out is to try it out but I will need to aquire some speacialist tools to a) remove the current 6sp Regina block and then b) fit the Campagnolo block. The other question is, will standard SR r/mech and DT shifterSo work with the 7sp setup. So, has anyone has any experience with this kind of issue or should I not bother and stick with the 6sp. I really like the Campagnolo freewheel and it's not in showroom condition so it's beyond the realms of Italian exotica and really crying out to be used.

Here's the one I have - http://www.velobase.com/ViewComponent.a ... 4&AbsPos=7

Velobase describe it as 'narrow' but it is 2-3mm wider than the Regina block. The other question is, does anyone have a 6sp they want to swap for my 7?

A 7 speed freewheel is generally for 126mm hubs. It's unusual for your hubs to have 130mm and would imply that they have been modified. Anyhow with them being spaced at 130mm the 7 speed should work with no problem what so ever.

You say the 7 is wider than the 6 by a few mm, looking at the frame do you think that you have the clearance required?

Tel":1fo0n4g4 said:

A 7 speed freewheel is generally for 126mm hubs. It's unusual for your hubs to have 130mm and would imply that they have been modified. Anyhow with them being spaced at 130mm the 7 speed should work with no problem what so ever.

You say the 7 is wider than the 6 by a few mm, looking at the frame do you think that you have the clearance required?

Click to expand...

Well, I've screwed the freewheel onto another hub to test with the frame and clearance appears OK for a chain but I can't confirm that the test hub spacing is the same as the Record hub. I guess it's a case of trial and error but was keen to find some known facts. I really want the final build to feature the Campagnolo freewheel without too much pain eg redishing etc.

Thanks for the answer by the way.

I am running a 7 speed freewheel (13-22) on a 1977 Colnago Super (spaced at 126mm) with Nuovo Record derailleurs and shifters. The main issue is the hub has to be spaced with a little extra room on the drive side to avoid scraping the seat stay. This, of course, means that the wheel dish will also have to be adjusted. As for performance the only problem I have noticed is it takes a little extra effort to get the lowest gear to engage.

- Steven