Hpw?
07-19-11, 06:24 PM
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Hpw?
I've tried looking and there's plenty of reference too, but no explanation I can find of HPW in relation to rims. I've got Campagnolo Atlanta 1996 rims which campyonly tells me: " The rims come in a single color which is a high polished aluminum with HPW side walls."
What does HPW refer to?
My rims have never been braked on but are still burnished somewhat which I assume is this mysterious HPW. .
Cheers.
What does HPW refer to?
My rims have never been braked on but are still burnished somewhat which I assume is this mysterious HPW. .
Cheers.
07-19-11, 06:41 PM
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If you were to Google "HPW side walls", you would find this:
https://www.campyonly.com/techtalk/techtalk12.htm
Pertinent info from link:
All Campy rims are at least dual wall construction. I want to make a short statement of the two types of construction for Campy rims. The HPW rims are joined rims with an insert that gets rivited into place to hold the rim together. This style of rim has historically had a very noticable seam during braking. I will give Campy credit that they are the best in the industry with this technique, but I have been spoiled with the SWT machined side wall that is without seams. The SWT rim is welded at the joint in the rim and then machined to the correct dimension without the need for the joining insert like the HPW. The HPW side wall treatment is better in durability and braking performance (especially in the wet). The call as to which to pick will be more of a choice of the conditions you ride in. If you live in England and you have a lot of rain the choice is easliy HPW. If you live in Phenoix, Arizona I would probably go with the smoother-braking SWT.
https://www.campyonly.com/techtalk/techtalk12.htm
Pertinent info from link:
All Campy rims are at least dual wall construction. I want to make a short statement of the two types of construction for Campy rims. The HPW rims are joined rims with an insert that gets rivited into place to hold the rim together. This style of rim has historically had a very noticable seam during braking. I will give Campy credit that they are the best in the industry with this technique, but I have been spoiled with the SWT machined side wall that is without seams. The SWT rim is welded at the joint in the rim and then machined to the correct dimension without the need for the joining insert like the HPW. The HPW side wall treatment is better in durability and braking performance (especially in the wet). The call as to which to pick will be more of a choice of the conditions you ride in. If you live in England and you have a lot of rain the choice is easliy HPW. If you live in Phenoix, Arizona I would probably go with the smoother-braking SWT.
