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Gian Robert

Old 05-18-23, 06:14 PM
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Gian Robert

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does anyone know who may have been the producer of the Gian Robert marked chainsets?

with private labelled Italian chainsets there is an understandable tendency to assume OFMEGA.

this example certainly does not look like a product from that firm.

wondering if it might be from one of the lesser known makers such as A.LE.S.




A.LE.S components

at some point in the early 1980's a partial road ensemble was offered as a boxed set

included were chainset, gear ensemble, hubs and saddle pillar

absent were headset, pedals and brakes

today such sets are commanding simolians large upon the waves of the embaymenture

there was even a gold anodised edition...


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​​​​​​https://www.ebay.it/itm/285283600409...3ABFBMrqmolIZi

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​​​​​​https://www.ebay.it/itm/285283600081...3ABFBMsKmolIZi

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Old 05-18-23, 07:08 PM
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Dayyyummmm..... that's a ginormous crack on that crank!
Looks like it started at the corner of the square hole. Was it overtightened on to the spindle?
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Old 05-19-23, 05:11 AM
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Almost assuredly related to ALE. That is a very interesting crack. I wonder if both companies sourced them elsewhere though.
Ofmegas (and MIche, GPM, Roto, Galli etc...)seems to have a shorter curve to the chainring mount, whereas this has almost a rose hip shaped chainring mount area.

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Old 05-19-23, 05:23 AM
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Originally Posted by Chombi1
Dayyyummmm..... that's a ginormous crack on that crank!
Looks like it started at the corner of the square hole. Was it overtightened on to the spindle?
They crack.

I have one; it's cracked.

Almost every one I've seen pics of, has a crack or the pics don't show where it might be.
The cracks are anywhere on the inner web, they look to me like shrinkage-cracks.
They'll start at one narrow place and then go anywhere.
There is one NIB for sale on that auction site and I can't see a crack; if so it would be the first un-cracked one.

The number of left arms, rings, and axles that appear in the listings is vastly higher than the number of drive-side arms (or complete sets).

As for maker, I don't think Ofmega.
There's a pic on the interweb of very similar BMX crank with bolts marked ALES.

Bit of a shame, all the rest of the Competition-level GR components are decent.
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Old 05-19-23, 08:16 AM
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the failure is one of the things which made me suspect A.LE.S.

Palo Alto Bicycle in California was an A.LE.S. stockist for a time in the early 1980's

recall there were three models; all five arm 144 BCD with the top one called Idramon

word amongst the mechanics was that they were failure prone

the example pictured certainly lends weight to this suggestion

Palo Alto Bicycle discontinued them after a short time

"a short time" also describes the duration of the A.LE.S. enterprise


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