Raceface crank spacers

bobbydigital

I have installed this RF Chester crank, it's for 73/68mm.

I have had to run the 4 spacers they provide with the crank, those are the white things.
Would I be better off adding a chainline spacer to the bearing cup and reducing the white spacers by 2?

To me it's new, I've never needed to space the crank like this before, normally one spacer on the drive side has always worked.

steve_sordy

I have never owned or ridden a Chester crank, so I'm flying blind here. But I don't like the look of that! It just looks wrong, are you certain that you have followed the instructions correctly?

Spacers normally go between the BB bearing housing and the frame to ensure that you don't squash the tube spacer (and to get the chain line correct). So if they are meant to be there, then the shaft that the crank is fastened onto looks too long. But as I said, I'm flying blind here.

bobbydigital

I've seen people install them differently.

One the way I did it, those spacers are supplied with the crank, pre-installed on the non drive side.

The other way was with 2 chaline spacers on the drive side and one on the non drive side.

CitizenLee

I haven't used Chester cranks either, but whatever is going on in the pic above doesn't look right.

The inner face of the crank arm should be more or less flush with the outer face of the BB bearing shell.

If you need to space it out then the spacers go in between the BB and frame, like so:

The Rookie

RTFM - That's very wrong!
https://www.raceface.com/media/B10052-n ... set-4L.pdf

bobbydigital

So it just fits like any other crank then.

I was told by a qualified cytech mechanic who teaches bike fitting, mechanical skills and riding skills that they do not advise the use of 2 spacers due to limited threads engaging with the bb and shell but seems it's the way to do it.

Cheers.

The Rookie

Then he's a male chicken (shortened version), personally I'd trust Raceface's advise over anyone else anyway!

Road bike BB's have shorter thread as they don't need to allow for the spacer, so presume he never uses them?

wilberforce

The BB threads are also not all same length. I think it is Saint that offers longer threads, assuming that you may fit a chain device

The Rookie

Nope, Saint are identical to XTR, I have both. The chain device replaces a spacer anyway, so clearly an ill thought out myth.