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Messages - JJJ

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1
29er / Re: FS-AM831 Derailleur hanger
« on: May 10, 2022, 07:23:59 AM »
Also available here: https://fr.aliexpress.com/item/1005001935571629.html
Make sure you select the "For FS831 Use" option.

2
29er / Re: ICAN P17(Flybike FM1266)
« on: April 11, 2022, 08:07:49 AM »
Quote from: FullCarbonAlchemist on March 29, 2022, 01:20:43 AM
It would definitely be nice to try out Flybike’s take on VPP.

The chain stays are very long (445 mm)! In the "original", they are 435 mm.

3
29er / Re: AM831 - The flex-fix
« on: April 06, 2022, 01:46:53 AM »
I'm posting here the production diagram of the bolt, in case others want to have it made.
You further need a pair of 10xM8 grub screws and a pair of 6703-2RS bearings.

The hex print is not mandatory, since the bolt should only be tightened "finger tight". So with a cylindrical bore instead, the bolt should be cheaper to manufacture.

4
29er / Re: My new LCFS958 - StefanB
« on: April 05, 2022, 01:18:21 AM »
Quote from: StefanB on April 03, 2022, 02:10:12 PM
So far eight. 2*LCFS911, 2*LCFS958, 1*LCFS917, 1*LCFS713, 1*LCFS947 and soon finished with my AM831 :-)
Impressive. You sure must be one of the most experienced Chinese frame users. Why? For your family and friends or do you sell them?

5
29er / Re: AM831 - The flex-fix
« on: April 05, 2022, 01:15:04 AM »
Quote from: eastcoastbumps on April 04, 2022, 09:40:27 PM
I just want to confirm, its a pair (2) 6703-2RS bearings that we need in addition to the bolts, correct?  No other parts?
That's right.

6
29er / Re: AM831 - The flex-fix
« on: April 04, 2022, 07:51:50 AM »
Quote from: promoto on April 03, 2022, 11:16:30 AM
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

Thanks for investing in the new triangle for the comparison!

7
29er / Re: My new LCFS958 - StefanB
« on: April 03, 2022, 05:31:33 AM »
Quote from: StefanB on April 03, 2022, 02:11:56 AM
And I am almost finished with my AM831..........

How many different chiner frames have you built??

8
29er / Re: The Shiny New AM831 Group Buy (A) Thread!
« on: March 29, 2022, 09:53:49 AM »
For those of you seeking for information on the bolt upgrade for the V1 rear triangle, there is a new dedicated thread started by StefanB:
http://chinertown.com/index.php/topic,3622.0.html

9
29er / Re: AM831 - The flex-fix
« on: March 29, 2022, 09:48:20 AM »
Quote from: scourge on March 28, 2022, 01:09:46 PM
How do I get the one bearing off that was already in the rear triangle?

Like you do other frame bearings, hammering it out from the other side with a bearing extractor or just a tube. Here you only have access to the inner race, so the bearing will most likely be damaged in the extraction operation. To do only if the bearing is already damaged...

10
29er / Re: AM831 - The flex-fix
« on: March 28, 2022, 03:54:10 AM »
Quote from: scourge on March 27, 2022, 07:03:40 PM
Crap. I must have missed the install instructions.  I just put the bearings on and tightened to 17nm. I rode it once like that already.

 :o You probably busted all four bearings! Didn't you feel them crunching?

11
29er / Re: AM831 - The flex-fix
« on: March 25, 2022, 10:30:10 AM »
Quote from: StefanB on March 25, 2022, 06:57:31 AM
I have received my enduro bearings. The fit perfectly on the new bolts but the holes in the frame are to small. I will have to find out a good way to make them bigger.

By the way. What is the screw inside the new bolts for? The original does not have this.

You need to scrape away the paint and excess resin inside the recess to find the original 23 mm diameter.

If you don't know what the grub screw is for, BEWARE, your bearings are at risk! I explained that on the mailing list:

Important reminder: only tighten the bolt "finger tight", the purpose being only to compensate the axial clearance. The "finger tight" sensation is a little difficult to feel with the tight fit of the bolt. Tighten while turning the link; when you feel a crunching sensation in the link, stop and back-off a little until the turning becomes smooth again.

It's the role of the M8 grub screw to hold the bolt in place, tighten that one sufficiently when you've finger-tightened the bolt. Beforehand, insert the grub screw through the tip of the bolt. You can then use a 4 mm Allen wrench to tighten it through the bolt head.

12
29er / Re: AM831 - The flex-fix
« on: March 24, 2022, 03:50:34 AM »
Quote from: StefanB on March 23, 2022, 03:03:44 AM
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 ;-)

13
29er / Re: The Shiny New AM831 Group Buy (A) Thread!
« on: March 24, 2022, 03:48:24 AM »
Quote from: hagerd on March 21, 2022, 11:23:37 AM
Its worth reaching out to JJJ, looks like there might be some stragglers not paying.

Everyone paid now!

14
29er / Re: Tideace Enduro FS-830 New Group Buy (A) Thread
« on: February 28, 2022, 05:02:49 AM »
Quote from: Eddy-haideli on February 26, 2022, 12:05:13 AM
Now The enduro frame got in stock for each size.
So if anyone interested this frame.
Feel free to contact us, thanks.

The first picture is from Stef Biggel's build! (http://chinertown.com/index.php/topic,3566.msg34041.html#msg34041)

15
29er / Re: Tideace Enduro FS-830 New Group Buy (A) Thread
« on: February 28, 2022, 04:59:03 AM »
Quote from: endo.alley on February 27, 2022, 07:14:25 PM
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)

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