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Re: Those with AM831 built, are you happy with it if not including flexing issue?
I think you are all being shafted and I am very disappointed with the attitude from Haidelli being conveyed through Eddie. These issues are clear indications that they do not test their bikes in the real world, just stick them on machines to tick boxes on strength / durability. To be expected to pay for a replacement rear is unbelievable. I know it would be great expense to the company but it is one that could be borne over a period of time, from an accounting point of view at least. Let's not forget that we are buying frames at less than a third of the price of "reputable" brands, from a remote end of the world that does not always have good reputation. Unless we are completely naive, we know that we are gambling. If it's too good to be true, it may well be. I purchased mine with this in mind, and don't expect any warranty. Moreover, there are several manufacturers using the same mold, and not only Haideli is in question. I bought mine from Winow Cycles, and their attitude is no better. Otherwise, I'm pretty impressed by how the bike rides. The flexing issue does not impact me yet, as long as the press-fit of the bearings holds, but I'm not very heavy and I don't make my bike slide from side to side like cybrsrce. January 02, 2022, 01:55:33 PM |
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FS830 pivot design
A lot of people, including me, was wondering how the links are designed and where the Bearings are build in. OK, so regarding the questions I had about the pivot design, contrary to what I assumed earlier, the bearings are in the frame. So it's this type of pivot: The link eyelets have shoulders that press on the inner races (directly or through shims that compensate the axial clearance). There doesn't seem to be a spacer inside the frame between the inner races. This means that if you torque the bolts too tight, the eyelets will flex inward and push the inner races inwards, crushing the balls  This is not a great pivot design, sorry to say Stef, but it's no worse than the AM831 pivot between the lower link and the front triangle. So extra care should be taken to not overtorque the bolts (and maybe the 15 Nm specs are already excessive...).I'm not sure why they chose a conical bolt head. January 24, 2022, 04:30:36 AM |
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Re: FS830 Enduro Frame - Stef Biggel’s build
Indeed, not a great design, though as far as I know this is quite common and even for some brand frames. Brand frames? Which ones? Not the few I've looked at lately. January 24, 2022, 11:39:40 AM |
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Re: FS830 pivot design
Yes this is a very possible szenario why the bearing sounds so strange by rotating. Try tightening the bolt on the links removed and check if the eyelets flex inwards before you reach the torque spec - if this is the case, upon final mounting, you should insert a 0.1 mm shim (or less!) in the clearance and stop tightening the bolt as soon as the shim no longer moves freely. January 26, 2022, 02:21:14 AM |
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Re: The Shiny New AM831 Group Buy (A) Thread!
V 2.1 perhaps? Uh, the cables are routed outside under the bottom bracket. That sucks. And the chain stays are a tad too long. February 01, 2022, 03:40:40 AM |
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Re: The Shiny New AM831 Group Buy (A) Thread!
In the meantime I have contacted JJJ to see if i can join in on the bolt order as a fix for now, Thanks to all the people who have been working on a solution for the rear triangle problem , Cheers, Promoto I believe we can still add a pair, since the final production has not started. Hopefully we'll get them going this week. February 07, 2022, 12:24:41 AM |
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Re: Carbonda FM 1003 / Flybike FM 1266 180mm "Super Enduro"
I may have used a confusing description. A four bar usually has a link in the seat stay, close to the rear axle. The FM1003 however has a one piece rear triangle with the "seat stay" link very close to the seat post. So it's like a four bar, but maybe it should rather be called a "linkage driven single pivot". Most famous example of this type is probably the EVIL bikes line up. Solid rear as well, but with a more intricate shock linkage. This is a single pivot design. No intermediate link between the rear triangle and the seat stay. February 12, 2022, 02:39:42 PM |
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Re: Tideace Enduro FS-830 New Group Buy (A) Thread
I'm kinda liking what I have seen of the bike frame. You need to like what you don't see too! The internal link structure is not great, but acceptable for some (http://chinertown.com/index.php/topic,3566.msg33904.html#msg33904) February 28, 2022, 04:59:03 AM |
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Re: The Shiny New AM831 Group Buy (A) Thread!
Its worth reaching out to JJJ, looks like there might be some stragglers not paying. Everyone paid now! March 24, 2022, 03:48:24 AM |
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Re: AM831 - The flex-fix
Received the new bolts yesterday, wery well made. I am still waiting for the bearings I ordered. I haven't read everything regarding the flex problem so I could use some help. Is this where the new bearing and bolt should be used? Good move to start a dedicated thread ;-) March 24, 2022, 03:50:34 AM |
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