Thank you and great work JJJ. With Eddy’s response a couple posts back and the possibility of a new carbon layup, what do you see as the most effective fix coming from the factory?  Bearings on the outside of the rear triangle with the c clip retaining thingy ala Yeti?  That seems very doable if the mold can be changed. Would like to hear your thoughts.

BTW. Going to take the bike out today with the 1mm nylon washers to see what it does. Will sign up for bolt buy when I can do the measurements.

I took the bike out today with the 1mm thick nylon washers on the outside of the carbon of the offending link underneath the aluminum bolt outside lip and it was very solid. There was no noticeable flex and the suspension seemed smooth and responsive. The bolts also did not come loose. There were not any clicking or creaking noises. Bike rode really well.

I think there is a chance that this may work. Bushings have long been used successfully in suspension design.

Dear All:

Have a nice day.
Finally we got the solution of the flexing of the frame FS-AM831.
The upgrated of the new mold of triangle, if you need it, contact us.

Eddy@haidelibicycle.com

We also found that JJJ have the idea of the bolts to solve the problem, really thanks for his help and effort.
But that's would not be our solution and cannot ensure it would be works.

Thanks for all the supporting and understanding.
Feel free to contact me via email.

All the new order would be use the new mold.

The Haideli revision looks pretty solid, but I’m hoping to commit to buying a frame (either AM831 or FM1002) in the next month or so and would only be comfortable getting an AM831 after at least one rider builds up the revised frame and can give us a review of their experience.

I mean, in principle I’m a big fan of overkill. My current main bike has a 38mm 180 fork and 2.8 tires on it. But you make a good point.

I’m attracted to the idea of a VPP frame over another 4-bar like my current bike, but it’s looking like field testing the revised rear triangle/links is going to take too long for me to base my winter build on the 831. That’s too bad, it really seems like it would have obvious advantages over a 4-bar if it’s reliable.

THEY AREN'T Santa Cruz! That's why this frame cost you less than $1,000! The quality of the product is debatable (outside of this frame), but you are not going to get the same customer service as a Western brand that values is reputation.

Yes JJJ, you are right. In this construction it is not possible to give force over the axis without damage the outer bearings. It must be filled by spacers very correctly. This is the big disadvantage to bearings in the link.