Has there even been a CNC'ed triple or twin front chainring?

[02gf74]

As you know, we have CNC cassettes, SRAM XX, milled from one chunk of steel (and this nice alloy one see below), but has anybody made a twin or triple front chainring set from one lump of alloy? Obviously would need to have a matching crankset for fitting..... I guess with the lastest trend for single front chainring, it ain't going to happen now.

SRAM

 

[FluffyChicken]

Re:

CODA

 

[dyna-ti]

Here you go

 

[02gf74]

Re:

Expected answer to be no but that is awesome, square taper bb indivates they go back a few years.

Any chance of photo of crank arm, were they alloy or carbon?

Wonder how the weight compares with similar vintage xtr?

 

[FluffyChicken]

Re:

They're old Coda cranks, mid 90s 'dales of course.

Searhc for CODA 502, dcanondale still have a technical warning on them as they cracked, classed as its lifespan.

Stupid idea where your middle ring wears out, or you chip a top ring and the lot has to go.

Wondering if would be cheaper to 3d print them now?

 

[ishaw]

Caramba also did a triple made from one lump of alloy iirc.

 

[FluffyChicken]

Not triple as far as I know, but the double and you bolted the granny on.



EDIT (a search for pics, viewtopic.php?f=2&t=224933 )

 

[syncrosfan]

Re:

AC components made a one piece CNC milled aluminum chain-ring combo for XTR M952 cranks. I almost bid on a used one on e-bay a while ago but it wasn't in best shape. It was gold anodized, looked pretty cool and was supposed to be quite a bit lighter than the standard XTR chain rings.