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Edited Date/Time
12/29/2017 1:34pm
Hello
What are your thoughts on these wheel hubs from China?
Link: https://www.ebay.com/itm/CNC-Red-Billet-Front-Rear-Wheel-Hubs-fits-Hond…
Are anyone here on the board running these? Anyone heard anything bad about the hubs?
" Precision CNC-machined from A6061-T6 forged aluminum"
What are your thoughts on these wheel hubs from China?
Link: https://www.ebay.com/itm/CNC-Red-Billet-Front-Rear-Wheel-Hubs-fits-Hond…
Are anyone here on the board running these? Anyone heard anything bad about the hubs?
" Precision CNC-machined from A6061-T6 forged aluminum"
Steer clear of these things.
Buy them and give a ride report, but I wouldn’t trust those on my bike.
The Shop
The rear hub failed on my friends Husky 250F, and the force of the lock-up transferred through the chain into the transmission causing way more damage. He was lucky it didn’t take out the cases, and I did the work for him for free, but the cost benefit of using a cheap wheel set didn’t quite work out for him.
6061 T6 from china isnt bad material. You see it more than you think on products you think are made in usa. Sure, its made in usa, from materials bought in the usa, that the wholesaler imported from..... china.
The material has a certification with content breakdown and testing data just like american materials.
What you run in to with buying finished products from china is it being labeled one material, but actually being made from another.
If you want hubs from china, shoot an email and ask for the material certifications and heat numbers. If they dont have any, dont buy them. If they do, you will more than likely be fine.
If you want good quality aluminum hubs, shoot for 7075 billet aluminum. Much better than 6061.
My point about made in usa....
Products can be “made in usa” and still be made FROM chinese materials. Distributors across the country sell chinese materials for manufacturers everyday. We have to specify brand every time we order stainless or aluminum to ensure we are getting american made materials.
There is nothing “illegal” about claiming made in thr usa and using foreign materials. It is still made in thr usa.
Regardless tho, fuck those hubs
Complying with the Made in USA Standard
Regarding the origin of the 6061 material (and associated temper), it really shouldn't matter where the material comes from so long as it is actually tested to the appropriate standard and passes. So if you're getting material from a reputable supplier, then it's largely irrelevant. The question really is how reputable is your supplier? Most major US suppliers are reputable. Beyond that, though, how reputable is the manufacturer? Are they really making the components from what they say they are made from?
And regarding the differences between 6061-T6/6511 (the most popular aluminum for machined components) and 7075, there are many things to consider. First, most people don't realize that 7075-T6 has issues with stress corrosion cracking, which hardly makes it ideal for something under constant stress like a hub. The over-aged T73 condition doesn't have stress corrosion cracking issues, but isn't as strong as the T6 condition. However, it is stronger than 6061-T6 by about 37% and harder by about 30%, though hardness isn't really relevant here.
So, relevant to hub design, 7075-T73 is the best choice from a material standpoint alone. But you have to think of material cost and material availability. These two factors alone usually make 6061-T6 the right choice, but beyond that, if the part is designed with 6061 in mind, then 6061 will work just fine at a lower price point and high material availability, all with minimal difference in weight for the same strength as 7075.
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