CHANGING A COMPAG FRAME TO SHIMANO?

trailbiker

I'm interested in buying a bike with has all compag components but I want to put me shimano components on it instead. Should I encounter any problems?

thanks

abcdggs

trailbiker wrote: »

I'm interested in buying a bike with has all compag components but I want to put me shimano components on it instead. Should I encounter any problems?

thanks

Yes, the switch from highly superior campag to shimano can be seriously detrimental to your health.

Seriously though, there shouldn't be any problem except for possibly clamp sizes for the new frame.

what campag group will be on the new bike and what are you planning on doing with it once it's off

DirkVoodoo

Can you not just buy the frameset? It might cost you a bit more than it's worth to sell on the Shimano parts. You will also need a new freehub or possibly even new wheels if you can't swap the freehub.

What bike is this anyway?

trailbiker

abcdggs wrote: »

Yes, the switch from highly superior campag to shimano can be seriously detrimental to your health.

Seriously though, there shouldn't be any problem except for possibly clamp sizes for the new frame.

what campag group will be on the new bike and what are you planning on doing with it once it's off

What about the bottom bracket?

DirkVoodoo wrote: »

Can you not just buy the frameset? It might cost you a bit more than it's worth to sell on the Shimano parts. You will also need a new freehub or possibly even new wheels if you can't swap the freehub.

What bike is this anyway?

I've to ask him about this but I'm not hopeful. I doubt he'll want to be left with the groupset. I prob either sell it on or keep it for another bike.

abcdggs

nope, just make sure the frame you have has the same as the new one, it will probably be either english or italian but both groups will have a bb to suit both.

doozerie

I may be misunderstanding your question about the bottom bracket but if you are asking whether a Campag bottom bracket is compatible with a Shimano chainset then the answer is a qualified no. It's qualified because it depends on the age of both - if both parts are fairly old and use a square taper axle then they will be compatible, but if either part is anything less than several years old then they almost certainly won't be compatible. For example, on the Campag side I think that "Ultra-Torque" chainsets are standard across the full range of Campag groupsets these days and these are very much Campag specific. If you were asking about the frame compatibility though, then as already mentioned the frame should be generic and should be able to take any manufacturers's bottom bracket - with the possible exception though of a frame built for a BB30 bottom bracket as off-hand I am not sure if Campag produce a bottom bracket to fit that shell.

Something else to bear in mind is that Campag and Shimano require different tools for installing/removing the likes of the bottom bracket and the cassette, so if you are doing the swap-over work yourself you may have to budget for a couple of extra tools. And if the Campag groupset is an 11-speed then there seem to be only two chain splitters (that I am aware of) that you can use to re-join the chain after splitting it and both are pricey - Campag's own tool is 140euro or so, Park Tool sell two tools to do the same job whose combined cost amounts to nearly the same.

Single Malt

doozerie wrote: »

I may be misunderstanding your question about the bottom bracket but if you are asking whether a Campag bottom bracket is compatible with a Shimano chainset then the answer is a qualified no. It's qualified because it depends on the age of both - if both parts are fairly old and use a square taper axle then they will be compatible, but if either part is anything less than several years old then they almost certainly won't be compatible. For example, on the Campag side I think that "Ultra-Torque" chainsets are standard across the full range of Campag groupsets these days and these are very much Campag specific. If you were asking about the frame compatibility though, then as already mentioned the frame should be generic and should be able to take any manufacturers's bottom bracket - with the possible exception though of a frame built for a BB30 bottom bracket as off-hand I am not sure if Campag produce a bottom bracket to fit that shell.

Something else to bear in mind is that Campag and Shimano require different tools for installing/removing the likes of the bottom bracket and the cassette, so if you are doing the swap-over work yourself you may have to budget for a couple of extra tools. And if the Campag groupset is an 11-speed then there seem to be only two chain splitters (that I am aware of) that you can use to re-join the chain after splitting it and both are pricey - Campag's own tool is 140euro or so, Park Tool sell two tools to do the same job whose combined cost amounts to nearly the same.

The bold is only true for c. 1995 lever components. Axle lengths and tapers are different from shimano to campy post c. 1995. Campag do have BB30 adapters for ultra torque bb