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Messages - Neb

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Component Deals & Selection / Re: Interesting Aliexpress finds! - good deals, interesting stuff, new products etc!
« on: April 21, 2024, 01:25:55 AM »
I've broken 2 of the riderace quicklinks, both while riding. One came apart at the bottom of a downhill section so I may have hit it with a branch or rock. Another came apart quite suddenly on a short sharp climb (where you out power down to carry speed), it was a hell of a surprise!


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29er / Re: FM1001 / FM1156 - 135mm frame
« on: April 01, 2024, 02:45:04 AM »
Quote from: jever98 on March 28, 2024, 11:24:23 AM
Interesting, thanks for sharing.

Isn't the support of the suspension a lot related to the shock tune? If I recall correctly, the FM1001 doesn't have an unusual leverage curve?

I found the megneg on the rockshox deluxe made a huge difference. It naturally makes the shock more progressive and gives much more mid stroke support. Surprised that they didn't include this as stock on these bikes

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29er / Re: FM1001 / FM1156 - 135mm frame
« on: March 01, 2024, 02:17:24 PM »
I had to order the full hardware kit from carbonda and I noticed that the bolt is now much better than the original bolt that came with the bike. In addition the headset now seems to fit properly and doesn't need spacers underneath the top cap.

Seems that some of the hardware shortfalls have now been addressed

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29er / Re: FM1001 / FM1156 - 135mm frame
« on: February 03, 2024, 12:17:22 PM »
Quote from: bossman302 on February 02, 2024, 10:00:10 PM
I degrease all the bearings from my kit and put in a high quality grease. Not sure if it was worth the effort since these are just cheap generic bearings but we shall see.

On first look the grease didn't look great, but it's really tenacious stuff! The fill wasn't too bad for OEM bearings either. One thing I did notice was how the factory grease wasn't well spread through the bearing, so definitely worth spinning each bearing a few times before installing in the frame or there will be bearings not covered by grease.

Old vs new

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29er / Re: FM1001 / FM1156 - 135mm frame
« on: January 29, 2024, 02:36:26 PM »
Quote from: brunev on January 29, 2024, 02:22:36 PM
Good news that you managed with the lower bearings. Not sure why the difference on the rocker bearings, did you notice the flange on the enduro bearings being thicker at all? Were they like the pic I uploaded?

I've got the bearings in the rocker in fine, but the lower bearings in the main pivot don't quite go in far enough to press against the internal tube the axle runs through, so I'm thinking the Enduro bearings are the same as yours and 0.5mm too thick.

I'll compare with the new bearings when they arrive this week. I'm tempted to shave 0.5mm off the spacers on the lower pivot so that can use Enduro bearings. But since the original bearings arrive this week I'll use them this time. I'll clean out the grease and use a heavy waterproof grease before fitting.

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29er / Re: FM1001 / FM1156 - 135mm frame
« on: January 29, 2024, 11:50:54 AM »
I have the full kit coming, so I'll hold off with the Enduro bearings. I will say that I wasn't impressed with the grease in the original bearings,it didn't seem too sticky or waterproof
 

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29er / Re: FM1001 / FM1156 - 135mm frame
« on: January 29, 2024, 11:14:06 AM »
This is the top rocker link installed with the Enduro F6902 bearings. No play or gap between the bearings and the frame.


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29er / Re: FM1001 / FM1156 - 135mm frame
« on: January 29, 2024, 10:17:53 AM »
Quote from: brunev on January 29, 2024, 08:56:15 AM
I bought the same bearings, and the flange was too thick. It did go in the top link fine, but once I assembled it to the frame there was a gap, so the rocker would move side to side. Have you assembled it back together with the frame, and does it fit tight?

I did not try the lower pivot, but because the flange is thicker I expect it won't go in completely (as you seem to have found).

The top link is back on the bike and the fit is fine, the original spacers made the gap up between the bearings in the link and the front triangle.

The bottom bearings made the chainstay really tight to remove (I had to tap it out with a mallet. If I greased them, I think I'd be able to tap the chainstay back into place.

9
29er / Re: FM1001 / FM1156 - 135mm frame
« on: January 29, 2024, 06:35:05 AM »
Quote from: brunev on December 31, 2023, 04:05:42 AM
Was thinking of this too, but the F6902 (at least) seems to have the wrong dimensions. The Enduro-branded one should be the same I got (the flange is too thick), and the generic-branded one doesn't seem to have the longer inner race at all.

What was the model of the Enduro bearing? I have Enduro F6902 max bearings installed in the top link and it seemed to go together fine, the issue I have is that they seem a little tight on the main lower frame pivot, I'd assumed that there might be some debris/paint in the recess so the bearings won't completely fit in.

I have Enduro F6902-LLU-MAX-EA, but there are other variants

10
29er / Re: FM1001 / FM1156 - 135mm frame
« on: January 27, 2024, 09:32:43 AM »
Quote from: Neb on January 21, 2024, 11:09:34 AM
I managed to strip the head of one of the hex bolts in the lower main pivot. I've managed to drill the bolt out and remove the bearing cover so I should be able to knock the axle out, however it is absolutely stuck....

I suspect there is corrosion between the pivot axle and the inner bearing race.

Any tips on how to remove??

I managed to get the axle out, so that's a relief! Worth remembering to disassemble periodically and free up/regrease as I don't think I'd want to do that again!

Full bearing and hardware kit coming from China to replace the axle I, so now I've got lots of spares.

11
29er / Re: FM1001 / FM1156 - 135mm frame
« on: January 21, 2024, 11:09:34 AM »
I managed to strip the head of one of the hex bolts in the lower main pivot. I've managed to drill the bolt out and remove the bearing cover so I should be able to knock the axle out, however it is absolutely stuck....

I suspect there is corrosion between the pivot axle and the inner bearing race.

Any tips on how to remove??


12
29er / Re: FM1001 / FM1156 - 135mm frame
« on: December 29, 2023, 02:52:31 PM »
I found the bearing numbers on the FM1002 thread. I think the bearings are:
F6901
F6902
F6801

I bought mine from https://www.airevelobearings.com/product/f6901-2rs-max-e/

Yet to fit them and confirm, so thanks for the photos. Gives me confidence that I bought the right bearings!

13
Component Deals & Selection / Re: ZTTO MTB M1 Boost hubs 28H 54T Ratchet
« on: October 22, 2023, 04:32:50 PM »
I've had my M1 hubs for 2 years, main bike during the wet winters we get in the UK. Built up with BTLOS carbon rims, sapim d-light spokes for a build of 1600g. I asked for the 36t from ztto as part of the original order. The wheels have been brilliant, they still spin with hardly any drag and with no side to side play... My maintenance on the other hand hasn't been great.

Took them to bits for the first time today, all bearings are still fine except the outer freehub bearing. The ratchet has been fine but it is showing some signs of wear. The splines in the ring nut in the hub have worn through so only 50% thickness remains.

I'll order the steel dt swiss ring nut and I may buy the 24t ratchet, springs and grease kit, while I have the ring nut out, I'll change all the bearings and make the hub like new.

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Component Deals & Selection / Re: Disk brake pads
« on: March 06, 2023, 04:11:25 PM »
I've been using 'Cooma' branded pads, specifically the pink ceramic pads which have been working well. Only sold by Alpha cycling store, so there is some consistency there

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29er / Re: FM1001 / FM1156 - 135mm frame
« on: February 12, 2023, 02:51:44 PM »
Does anyone have any of the pivot bolt dimensions? I managed to round out one of the bolts by over tightening it, its in place now so no real rush, but at some point I'm going to need to drill it out and replace it. I think it was the drive side Chainstay attachment bolt onto the main pivot.

I think an M6 countersunk bolt from memory, however I've no idea on the length?

Cheers

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