Wheel building

For discussions about bikes and equipment.
ian peacock
Posts: 40
Joined: 17 Sep 2012, 5:09pm

Wheel building

Postby ian peacock » 12 Aug 2020, 12:57pm

I have a pair of Ambrosia "Balance" rims that I am going to build onto campag hubs to replace the worn out Mavic Open Pro's. The new rims are shallow aero, being roughly triagular in section. Unlike every other rim I have used, these do not have reinforced eyelets, so I am a bit concerned about bringing the spokes up to tension. Do you have any thoughts?

freeflow
Posts: 1424
Joined: 29 Aug 2011, 1:54pm

Re: Wheel building

Postby freeflow » 12 Aug 2020, 1:25pm

The rims should take spokes without issue. If not they would be plastered with warning stickers. If you have serious concerns use a nipple washer (assuming there is room for one).

Brucey
Posts: 42275
Joined: 4 Jan 2012, 6:25pm

Re: Wheel building

Postby Brucey » 12 Aug 2020, 2:05pm

Nae worries;

Image

a few eyeletless rims need special washers inside the rim to allow the nipples to seat properly. Ambrosio 'balance' is not one such.

It reminds me very strongly of the original Mavic CXP22 rim, before they changed it to CXP-elite and ruined it by machining most of the brake track away in the process.

cheers
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~~~~~~~~~~~~~~~~~~~~~~Brucey~~~~~~~~~~~~~~~~~~~~~~~~

hamster
Posts: 3726
Joined: 2 Feb 2007, 12:42pm

Re: Wheel building

Postby hamster » 12 Aug 2020, 2:16pm

I run Ambrosio Balance on my winter bike - no problem at all. One of the rear drive side spoke holes has started to crack (Campag hub so heavy dish) but the cracking hasn't spread in 4 years and the wheel stays true. I check it regularly, I guess it's 20 years old now.

I thoroughly recommend them.

ian peacock
Posts: 40
Joined: 17 Sep 2012, 5:09pm

Re: Wheel building

Postby ian peacock » 12 Aug 2020, 4:25pm

Thanks All, that's really helpful. I shall get on with the building

Brucey
Posts: 42275
Joined: 4 Jan 2012, 6:25pm

Re: Wheel building

Postby Brucey » 12 Aug 2020, 4:36pm

to mitigate the risk of DS spoke hole cracking, it mightn't be a bad idea to use a washer beneath those nipples. This usually requires another 1-1.5mm spoke length and sometimes +2mm on those nipples too.

cheers
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~~~~~~~~~~~~~~~~~~~~~~Brucey~~~~~~~~~~~~~~~~~~~~~~~~

User avatar
Sweep
Posts: 6877
Joined: 20 Oct 2011, 4:57pm
Location: London

Re: Wheel building

Postby Sweep » 12 Aug 2020, 6:32pm

hamster wrote:I run Ambrosio Balance on my winter bike - no problem at all. One of the rear drive side spoke holes has started to crack (Campag hub so heavy dish) but the cracking hasn't spread in 4 years and the wheel stays true. I check it regularly, I guess it's 20 years old now.

I thoroughly recommend them.


Has there been any mucking around with them of late as per brucey's sorry tale of the CXP22?
I liked CXP22s, managed to get some NOS ones to build up into a wheel when I have time, but always looking for alternatives.
Sweep

hamster
Posts: 3726
Joined: 2 Feb 2007, 12:42pm

Re: Wheel building

Postby hamster » 12 Aug 2020, 10:38pm

Sweep wrote:
hamster wrote:I run Ambrosio Balance on my winter bike - no problem at all. One of the rear drive side spoke holes has started to crack (Campag hub so heavy dish) but the cracking hasn't spread in 4 years and the wheel stays true. I check it regularly, I guess it's 20 years old now.

I thoroughly recommend them.


Has there been any mucking around with them of late as per brucey's sorry tale of the CXP22?
I liked CXP22s, managed to get some NOS ones to build up into a wheel when I have time, but always looking for alternatives.


Interesting question, I'll have a look as I bought a modern production Balance rim to rebuild the wheel before I decided to run it to destruction.

hamster
Posts: 3726
Joined: 2 Feb 2007, 12:42pm

Re: Wheel building

Postby hamster » 18 Aug 2020, 8:30am

Measured both with an Iwanson gauge - NOS old Balance rim and a new one. Both came up at 1.3-1.4mm wall thickness.
The new rim features a wear indicator line.