Carbonda fm936 Thoughts

[Medico]

Hi all,

I had the high compression tune installed on the SidLuxe and have it set to 200psi right now. I’m 190lbs. Sag is currently 35% on a 42.5mm stroke. The shock tuner had it so long that I started shopping for a backup/second shock and determined I want Low Speed Compression tuning.

Not sure if anyone saw, but RockShox came out with a SidLuxe WCID for the Specialized Epic that has low speed compression tuning. This might work it’s way into the normal SidLuxe but for now I’m gonna look for a Deluxe Nude…

I’ll report back on the high compression tune after a few rides.

I weigh about the same as you and changed from a delixe rt3 MM tune to a 23 delixe ultimate Low compression/linear. Did it because I couldn't use whole travel of the 42.5mm shock without lowering the sag more than 30% (no spacers, around 190psi).
Now I ride the new shock with low compression and Linear with 2 volume reducers and 190psi.l; I think it's a totall different bike. I tracks very good, it's lively compared to dead. About the same paddlebob. But I'm in doubt what to do, because I sometimes need more support, but don't bottom out. Maybe I do change to a medium compressiontune.
But I don't know why people of my weight needs a high tune ( or de sid is a totally different shock?)

[numberzero]

A very fun vitus rapide or fm936.
https://us.vitusbikes.com/blogs/stories/pop-art-rapide

[adroitrider]

I weigh about the same as you and changed from a delixe rt3 MM tune to a 23 delixe ultimate Low compression/linear. Did it because I couldn't use whole travel of the 42.5mm shock without lowering the sag more than 30% (no spacers, around 190psi).
Now I ride the new shock with low compression and Linear with 2 volume reducers and 190psi.l; I think it's a totall different bike. I tracks very good, it's lively compared to dead. About the same paddlebob. But I'm in doubt what to do, because I sometimes need more support, but don't bottom out. Maybe I do change to a medium compressiontune.
But I don't know why people of my weight needs a high tune ( or de sid is a totally different shock?)

I’m no expert, but my assumption is that a high compression tube would give me more support at the beginning of the shock stroke. Allowing me to run lower pressure and the ability to tap into all 42.5mm of stroke.

I’ve ran about 350psi with the M tune.

[adroitrider]

A very fun vitus rapide or fm936.
https://us.vitusbikes.com/blogs/stories/pop-art-rapide

Sweet setup. I want the AXS seatpost!

Funny how they are running a SidLuxe Ultimate. I wonder if they are using a special tune…

[Medico]

I’m no expert, but my assumption is that a high compression tube would give me more support at the beginning of the shock stroke. Allowing me to run lower pressure and the ability to tap into all 42.5mm of stroke.

I’ve ran about 350psi with the M tune.

Could be, but the sag would be more and so also less peddle clearance...

[adroitrider]

Could be, but the sag would be more and so also less peddle clearance...

Agree, thus why I am shopping for a shock with LSC.

[adroitrider]

Just be clear, the H M L tune is different than LSC feature on the shock. Nearly all RockShox shocks that aren’t super weight weenie have a blue dial for Low Speed Compression tuning.

Picture attached for reference.

[Medico]

Just be clear, the H M L tune is different than LSC feature on the shock. Nearly all RockShox shocks that aren’t super weight weenie have a blue dial for Low Speed Compression tuning.

Picture attached for reference.

I know...this should only do something with the lsc...only thing i feel is less small bumb compliance and less peddlebob. No Difference during big compressions. Hsc knob would be a better option

[adroitrider]

And I believe someone said the Super Deluxe can’t fit on the 936?

[jibão]

Someone using the X-FUSION O2 PRO shock on this frame?

https://aliexpress.com/item/1005005118552291.html?spm=a2g0o.order_list.0.0.21efcaa4bJkoEH&gps-id=pcOrderListRecommend&scm=1007.38956.333894.0&scm_id=1007.38956.333894.0&scm-url=1007.38956.333894.0&pvid=319c5906-8470-4c1b-98bd-e8ae7c491625&_t=gps-id%3ApcOrderListRecommend%2Cscm-url%3A1007.38956.333894.0%2Cpvid%3A319c5906-8470-4c1b-98bd-e8ae7c491625%2Ctpp_buckets%3A668%232846%238113%231998&pdp_npi=3%40dis%21USD%21265.33%21204.3%21%21%21%21%21%402101c5b216830708829817160eb5d5%2112000031721900722%21rec%21BR%214558003811&gatewayAdapt=glo2bra

[davidvaneerd]

Hi guys, just signed up after reading this whole thread over the last few months and ordering a FM936 myself in a cool olive green paint scheme.
It arrived at last week and I have 2 questions which Wing hasn't responded to yet:

-1: does the newer FM936 versions still have a 31,6 seatpost diameter? Mine came with a plastic plug in the seattube saying 33.5, and my 31.6 seatpost seems a bit loose. Though 33.5 seems like a strange diameter for a seatpost so I'm guessing this is the seatclamp diameter, correct?
- 2: At the rear shock, is there supposed to be room between the top bolt of and the shock? I mounted a Fox Float DPS factory 165x45mm trunion but the bolt is way smaller than the opening in the shock. Is this right or does it need a bushing/shim?



Thanks in advance!

[acedeuce802]

You need shock hardware.  The 100mm linkage is 8x22.2mm and I believe the 120mm linkage is 8x30mm.

[jibão]

For crankset I will use Deore XT m8100, that have a chainline of 52mm. The Chainring will need offset to have the right chainline?

[lukwy]

Frame has boost spacing, so chainline 52mm is OK. Yesterday I mounted 32t oval chainring (BCD104 for PM spider) with -2mm offset (50mm chainline) and today I'll be testing. It should be also fine.

[jibão]

Frame has boost spacing, so chainline 52mm is OK. Yesterday I mounted 32t oval chainring (BCD104 for PM spider) with -2mm offset (50mm chainline) and today I'll be testing. It should be also fine.

So, if I buy a chainring with 0 offset the chainline will be correct?