Help needed with crank

ketsbaia

Sorry, I would put it in the workshop section, but I need a fairly quick answer.

Assuming the chainline is fine, is there anything necessarily wrong with using a wider axle than that prescribed by a chainset?

Only I need a new chainset for the commuter hack, which is a hub-geared affair, but I can't find any single chainsets that recommend a 112mm axle, which is what the current BB is.

Anyone?

Thanks in advance.

lost_in_thought

Wait.... will the crank even fit if the axle size is larger than is specified?

I'd imagine they need to tie in...

rjsterry

Might be wrong, but I can't see a problem. If I understand correctly, the current set up has quite a wide axle to keep the chain line straight with the wider geared hub. Most single chainsets will be designed for SS/FG use, so will assume a narrower rear hub, and hence recommend a narrower BB axle.

ketsbaia

lost_in_thought wrote:

Wait.... will the crank even fit if the axle size is larger than is specified?

I'd imagine they need to tie in...

It's the width rather than the thickness of the axle.

ketsbaia

rjsterry wrote:

Might be wrong, but I can't see a problem. If I understand correctly, the current set up has quite a wide axle to keep the chain line straight with the wider geared hub. Most single chainsets will be designed for SS/FG use, so will assume a narrower rear hub, and hence recommend a narrower BB axle.

Bingo.

So as long as I've got the chainline OK, it should be fine.

lost_in_thought

ketsbaia wrote:

lost_in_thought wrote:

Wait.... will the crank even fit if the axle size is larger than is specified?

I'd imagine they need to tie in...

It's the width rather than the thickness of the axle.

Ahhh my bad. Read properly, self.

Butterd2

The answer's still yes.