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  1. #676
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    Quote Originally Posted by tonloc08 View Post
    What length of spokes did you use with your American Classic hubs?
    No clue, that's why I paid a wheel builder, sorry for the lack of info
    www.quinnphoto.smugmug.com
    07 S-Works Enduro SL - Sold
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    2012 Stumpy EVO 29er frame up build

  2. #677
    D93
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    Has anyone put any ride time on these wheels yet?

  3. #678
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    Quote Originally Posted by D93 View Post
    Has anyone put any ride time on these wheels yet?
    Not me, it's winter here in Canada!

    I have an issue with one of my rims. The hook that hold the tire is badly shaped on 2 inch long area

    Nancy want pictures of this.

    We will see if services departement are great or not!
    mat g

  4. #679
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    It seems that the current batch of wider 29er rims will ship 3/18.
    Where did you get that information ? Direct from Nancy Yu ?

    (I ordered a set of rims March 5th, but didn't get any delivery info).

  5. #680
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    Quote Originally Posted by D93 View Post
    Has anyone put any ride time on these wheels yet?
    Yes, read the thread. I have ~15hrs on my set currently.

  6. #681
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    My rim has been made and the wheel is getting put together today (tonight, last night? the time difference is confusing!)

    She reports the weight at 406 and 410 grams for the rims. These are the wider rims. 30mm I believe.

  7. #682
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    Quote Originally Posted by ktm520 View Post
    Yes, read the thread. I have ~15hrs on my set currently.
    Overall impression of the rims so far? Ride quality, stiffness, weight, etc...

  8. #683
    D93
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    Quote Originally Posted by ktm520 View Post
    Yes, read the thread. I have ~15hrs on my set currently.
    Why not share your experience? With 15 hours you probably have as much time as anyone on the rims. Have you developed an opinion? How do they compare to the alloy rims you've had in the past?

  9. #684
    meh
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    Quote Originally Posted by ktm520 View Post
    I finally got Ikon EXO's mounted on my AM rims early this week. I used 25mm yellow tape and Stans valve stems. Tires beaded instantly with the first shot of compressed air and stayed beaded once pressure was released. As usual, tires had been sitting folded inside-out. I always mount the tires dry and then inject sealant through the valve stem after they have successfully beaded. No surprises here, bead sealed right up. Though, the bead seat isn't as tight as a Stans rim, but that has already been established.

    Got in a ride on my rigid ss with the air pressure set the same as I would run on my P35 rims (18F/26R, 165lb). Again, no surprises, everything worked as expected, no noticeable tire squirm. I even hit a log pile harder than I should have and it more than likely collapsed the tire. No spooge or marks on the rim.

    These rims are 200g lighter than a P35, so reduced rotating mass was noticeable, but I can't honestly say that I could "feel" any difference in stiffness.
    bump, for those that skimmed

  10. #685
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    Quote Originally Posted by D93 View Post
    Why not share your experience? With 15 hours you probably have as much time as anyone on the rims. Have you developed an opinion? How do they compare to the alloy rims you've had in the past?
    Because my opinion hasn't changed since my last post

    The true test for me is a back to back test (same day, same trail) versus Crest rims, which I haven't done yet. The only other thing to report is that I have been able to run lower pressures than with the Crest without tire squirm on the rear, but I'm pretty sure I already posted that

  11. #686
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    KTM good to hear they are at least as stiff as your P35 wheels. At first I thought you meant 200g less for both rims but I looked at the P35's and they are up around 600g each. They are probably pretty stiff rims.
    I'm betting the bead hook on the chinese rims are also good for opening a can of whoop-ass for the Crest's farewell dinner.

  12. #687
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    Yeah - Nancy told me in an email that the rims would ship 3/18.

  13. #688
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    I like to use the Aerolite/C X-Ray spokes when I build to higher tension because it is easy to control spoke twist with the tool that holds the bladed spoke. If I build some of these carbon rims, I will use a good bit of spoke tension. The Revos would probably get a lot of windup at 120 Kgf.

  14. #689
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    Question for mat g:

    Quote Originally Posted by mat g View Post
    Not me, it's winter here in Canada!

    I have an issue with one of my rims. The hook that hold the tire is badly shaped on 2 inch long area

    Nancy want pictures of this.

    We will see if services departement are great or not!
    If you don't mind me asking, how much did it cost to get these rims into Canada? Any extra duty charged? Thanks.

  15. #690
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    Quote Originally Posted by starbux View Post
    If you don't mind me asking, how much did it cost to get these rims into Canada? Any extra duty charged? Thanks.
    30$ per rim for 2 rims.
    No extra duty this time.
    mat g

  16. #691
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    Thanks mat. So CBSA charged you HST only. Maybe there's no duty on CF products from China!?! I've been heavily dinged in the past for soft goods (clothing) manuf'd in China. Good to know.

  17. #692
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    Quote Originally Posted by starbux View Post
    Thanks mat. So CBSA charged you HST only. Maybe there's no duty on CF products from China!?! I've been heavily dinged in the past for soft goods (clothing) manuf'd in China. Good to know.
    In clothing that can be made in Canada, probably an extra-taxes is applied. On CF stuff..., canada is not known as a cf specialist! But Light-bicycle put a 80$ value on my package, it could help a lot!

    Concerning my issue on my last rim, light-bicycle will send me a new rim!!!! Great!
    mat g

  18. #693
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    Anyone on this thread have any first hand experience with failed CF rims? I've used CF handle bars for years, and I've now got a CF frame, but I've never ridden CF rims and I'm very tempted by these Chinese ones. I've tacoed alloy rims, and worn them out so that they've split apart between the spokes in several places (still rideable though), and seen lots of cracks around spoke holes. Nothing lasts forever and I'm sure CF will wear out over time, but how do CF rims fail - do they crack and split but remain somewhat rideable, or do they catastrophically explode into a million little pieces sending the rider tumbling into the abyss. I've seen the PinkBike/Santa Cruz frame-bashing video, but are carbon rims more durable than alloy ones like the frames appear to be?

  19. #694
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    Quote Originally Posted by schnapmaster View Post
    I like to use the Aerolite/C X-Ray spokes when I build to higher tension because it is easy to control spoke twist with the tool that holds the bladed spoke. If I build some of these carbon rims, I will use a good bit of spoke tension. The Revos would probably get a lot of windup at 120 Kgf.
    It's interesting how many people build with thin spokes and haven't figured out how to deal with windup. With thin spokes before I tension a wheel I put a small dab of paint/ink on the spoke just above the nipple so I can tell if it's winding up. It's just a matter of turning the nipple quick or over rotating a bit to get the spoke to move without the nipple.
    "Do not touch the trim"

  20. #695
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    Quote Originally Posted by Rivet View Post
    It's interesting how many people build with thin spokes and haven't figured out how to deal with windup. With thin spokes before I tension a wheel I put a small dab of paint/ink on the spoke just above the nipple so I can tell if it's winding up. It's just a matter of turning the nipple quick or over rotating a bit to get the spoke to move without the nipple.
    I just hold them so I can feel and resist the windup.
    I also don't see a reason to build carbon rims to super high tension just because they can take it. There is no upside and the downside is increased stresses in the other parts of the wheel. With 32 spokes, 110kgf is strong enough for almost any application.
    Quote Originally Posted by pvd
    Time to stop believing the hype and start doing some science.
    29er Tire Weight Database

  21. #696
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    I have been following this thread with great interest. I am very tempted by the AM rims and thinking seriously about pulling the trigger.

    Being a fan of undrilled rim beds, I asked Nancy whether it would be possible to have a pair of AM rims manufactured without rim bed holes. She replied "Yes" there would be a 15 day lead time though.

    I plan to borrow the idea behind Fulcrum's MoMag technology and improvise a nipple seating process via magnets.

    I guess the main risk would be not having space in the rim cavity to turn the nipples around into position. I would be interested in the collective experience of the forum as to the wisdom of this plan.

  22. #697
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    Quote Originally Posted by starbux View Post
    Anyone on this thread have any first hand experience with failed CF rims? I've used CF handle bars for years, and I've now got a CF frame, but I've never ridden CF rims and I'm very tempted by these Chinese ones. I've tacoed alloy rims, and worn them out so that they've split apart between the spokes in several places (still rideable though), and seen lots of cracks around spoke holes. Nothing lasts forever and I'm sure CF will wear out over time, but how do CF rims fail - do they crack and split but remain somewhat rideable, or do they catastrophically explode into a million little pieces sending the rider tumbling into the abyss. I've seen the PinkBike/Santa Cruz frame-bashing video, but are carbon rims more durable than alloy ones like the frames appear to be?
    There are a few pictures of broken Specialized Roval Control 29 carbon rims here to give an idea of what a failed carbon wheel looks like:

    Roval Control SL 29 Wheels

    Carbon mountain bike rims seem to be quite strong so long as you don't hit them on something or overinflate the tyres.

  23. #698
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    Quote Originally Posted by Alex.b View Post
    I have been following this thread with great interest. I am very tempted by the AM rims and thinking seriously about pulling the trigger.

    Being a fan of undrilled rim beds, I asked Nancy whether it would be possible to have a pair of AM rims manufactured without rim bed holes. She replied "Yes" there would be a 15 day lead time though.

    I plan to borrow the idea behind Fulcrum's MoMag technology and improvise a nipple seating process via magnets.

    I guess the main risk would be not having space in the rim cavity to turn the nipples around into position. I would be interested in the collective experience of the forum as to the wisdom of this plan.
    The cavity in my rims is about 8mm.
    mat g

  24. #699
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    I ordered my rims on Feb. 20th and got this email

    The rims will be shipped on March 10th. Because there are a lots of 29er rims orders. And we have only one mold to manufacture. The production line is too busy to finish them in 7days this month. It will be better next month.

    Is that ok?

    Thanks,
    Nancy


    I got a tracking number this morning and they are on the way. Nancy also told me they take about 4 days to ship to the US. I thought is was very nice of them to tell me about the exta time. Many companies would just let you waite so you did not cancel the order.

    I will not be able to weigh the rims as I am having them shipped directly to Industry Nine and they said they would check them out and if the quality did not look good they would contact me.

    I will post a detailed ride report when Niner gets me my frame hopefully in April.
    Are you a road biker that likes hills? Try this Michigan Mountain Mayhem.

  25. #700
    Ballstein Models
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    well the front sure built up nicely.
    Attached Thumbnails Attached Thumbnails (Cheap) Chinese Carbon Rims?-photo-1-1.jpg  

    (Cheap) Chinese Carbon Rims?-photo-2-1.jpg  

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