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Re: The Shiny New AM831 Group Buy (A) Thread!
The questions were asked in this thread http://chinertown.com/index.php/topic,3522.msg33222.html#msg33222 See that last post from JJJ and I'm pretty sure that it's not only me who would like to see detailed photos of pivots and linkages. Thanks. January 05, 2022, 02:02:03 PM |
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Re: The Shiny New AM831 Group Buy (A) Thread!
After around 50 trail miles I have had to park the 831 , The movement of the bearings in the seat stays has become excessive so for fear of making the bearing housing oval or enlarged I've stopped riding it until JJJ's bolts are ready or the replacement rear triangle turns up. The few miles I have done so far have been very impressive , Once the rear shock was set up the rear gives that endless travel feeling and the ride is fantastic , Its definitely more at home at speed and descending , Really stable over jumps and high speed corners but not so good in slow twisty single track where it feels a bit big and clumsy . I have fitted the Meg neg air chamber to the Rockshox super delux shock that I'm using and whilst it transforms the ride performance on the back it has made pedal bob worse when climbing so for long climbs I use the lock out Just thought I would leave a quik update on my impressions of the frame so far March 02, 2022, 03:54:32 AM |
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Re: The Shiny New AM831 Group Buy (A) Thread!
I got my bolts in the mail from JJJ a few days ago. I was using the 3D printer spacers before getting these. I was pretty happy with the spacers' improvements. I installed the bolts with washers, and gave the rear a shake. I can still get it to move, but it seems like even less than with the spacers. Took it for an initial ride on Sunday. I'm very happy with them. I didn't really notice any rear end flex while riding. Not saying there is none now, but it wasn't noticeable to me. I am not the greatest rider and it was only one ride, but it so far so good. And I'm not a light rider at 265lbs. I was more concerned about a creaking sound I have had since before winter. I'm pretty sure it's coming from the bottom bracket now. I'm still using the cheap provided one, but want to switch it out now. Will any BB92 bracket do? Or is there something special I need to look out for? Recommendations on a good one? March 22, 2022, 11:22:57 AM |
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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?
March 23, 2022, 03:03:44 AM |
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Re: AM831 - The flex-fix
I got my 6703 bearings from Fast Eddy on ebay (seem fine at this point). Fit the frame great (I'm sure the tolerances here vary with paint, etc with one requiring a tiny press in and the other side dropping in just right. I followed JJJ's advice and tapped the bolts in until I could tighten them down around hand tight and then tightened the grub screw down to hold everything tight. Seems good so far and definitely less flex back there wobbling it side to side (haven't ridden it yet to test)
March 25, 2022, 09:15:34 AM |
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Re: AM831 - The flex-fix
I have both the JJJ fix and the new modified rear triangle, Having ridden the JJJ fix for a good few trail miles and then fitted the new triangle I would say if you have the JJJ fix there is no benefit to fitting the modified rear triangle, It is no stiffer than the standard triangle with the JJJ bolts and bearing fitted. The bearings that are fitted to the frame are low quality so if your fitting JJJ bolt fix while you have it all apart it would pay to replace all the bearings with good quality ones then the bike is as good as it can be which is pretty impressive in my opinion April 03, 2022, 11:16:30 AM |
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