Author Topic: Carbonda fm936 Thoughts  (Read 504400 times)

NasiLemak

Re: Carbonda fm936 Thoughts
« Reply #2160 on: November 16, 2022, 04:40:56 AM »
I considered changing to a 42.5 - But my concern is that the increase in travel will lower the BB?

Its my do-it-all bike but also mostly to race XC on technical natural trails during the summer - so I like a machine that is lightweight. Contemplating returning it for the 42.5.

In the future I will be running a 110 (or 120) 35 sid ult.

Thanks!

carbonazza

Re: Carbonda fm936 Thoughts
« Reply #2161 on: November 16, 2022, 12:44:41 PM »
...Its my do-it-all bike but also mostly to race XC on technical natural trails during the summer...
You'll be happy! I did and Enduro race and the Swiss Epic the same summer last year with it.
With a 120 Ultimate and 42.5mm here's the build: http://chinertown.com/index.php/topic,2079.msg26737.html#msg26737
Swapping the wheels and tires for the enduro.

NasiLemak

Re: Carbonda fm936 Thoughts
« Reply #2162 on: November 17, 2022, 11:00:13 AM »
Beautiful Build! How did you source the remote lockout for the sidluxe?

Liter

Re: Carbonda fm936 Thoughts
« Reply #2163 on: November 29, 2022, 12:24:04 PM »
You'll be happy! I did and Enduro race and the Swiss Epic the same summer last year with it.
With a 120 Ultimate and 42.5mm here's the build: http://chinertown.com/index.php/topic,2079.msg26737.html#msg26737
Swapping the wheels and tires for the enduro.

Carbonazza if I just change the Fork and leave the Shock 165x40, will the BB be higher than changing both? Really like the bike but pedal strikes are pissing me off and I´m already running very little sag

carbonazza

Re: Carbonda fm936 Thoughts
« Reply #2164 on: December 03, 2022, 02:22:46 AM »
Carbonazza if I just change the Fork and leave the Shock 165x40, will the BB be higher than changing both? Really like the bike but pedal strikes are pissing me off and I´m already running very little sag
I didn't see that one before sorry.
Not an expert in geo-dynamics  ???
My guess looking at the pivots and bike, a longer fork will make the BB go up.
Both shocks are 165mm, but a 42.5, will allow the BB to go a bit lower at full compression.

endo.alley

Re: Carbonda fm936 Thoughts
« Reply #2165 on: December 03, 2022, 12:24:41 PM »
Offset eyelets for the shock mounts? Shorter cranks? A Slack-R headset insert will raise the stack height 10mm. Probably 5mm on BB. Considering that on y FM909 next spring.
« Last Edit: December 03, 2022, 12:29:18 PM by endo.alley »

ckot

Re: Carbonda fm936 Thoughts
« Reply #2166 on: December 05, 2022, 12:00:27 AM »
Edit - Heard from Wing:

120MM travel :
Pre-order accepted, expected to be available in spring 2023,
deposit: $100(No refund on cancellations)
 
FM 936 -Normal version ( 120  mm travel  ) : US $ 695
FM 936  Super Light version ( 120  mm travel  ) : US $ 810
« Last Edit: December 05, 2022, 10:08:54 AM by ckot »

albar

Re: Carbonda fm936 Thoughts
« Reply #2167 on: December 05, 2022, 02:06:45 AM »
Hi all,
I have a question regarding bearing replacement.
I run FM936 for 2 seasons and 7k km quite hard (trail riding, XC-racing) in dry conditions.
Last year I serviced bearings in workshop with new grease. This November I broke shaft of the rear shock and went to another workshop for repair and they told me that bearings required change. I do not trust them because they invent a problem even when there is none.
Thus, the question is: how long do stock bearings last? Is it the time for replacement after 7k km?

Medico

Re: Carbonda fm936 Thoughts
« Reply #2168 on: December 05, 2022, 02:59:27 AM »
Hi all,
I have a question regarding bearing replacement.
I run FM936 for 2 seasons and 7k km quite hard (trail riding, XC-racing) in dry conditions.
Last year I serviced bearings in workshop with new grease. This November I broke shaft of the rear shock and went to another workshop for repair and they told me that bearings required change. I do not trust them because they invent a problem even when there is none.
Thus, the question is: how long do stock bearings last? Is it the time for replacement after 7k km?

I don them every year, so 4a5k a year. But depends when and where you ride.
7k is good lenght I think.

FullCarbonAlchemist

Re: Carbonda fm936 Thoughts
« Reply #2169 on: December 05, 2022, 03:26:15 AM »
Hard AM/enduro riding can easily wear out most stock bearings (even on branded bikes) in less than 1,000mi/1800km. So even moderate XC riding will probably not be able to get away with several multiples of that. It only takes mild bearing play to put increased stress on the frame and shock.

I usually suggest new bearings every year, just because late season riding tends to be messier and harder on them here in New England USA. Mileage is only part of how you measure bearing life.

Usually you don’t need to replace all of them, just clean and regrease some while replacing the most worn ones — usually the main pivot and rocker arm pivot on common linkages. Get Enduro Max bearings and you may be able to go multiple years without replacements.

Lukesjr

Re: Carbonda fm936 Thoughts
« Reply #2170 on: December 07, 2022, 07:08:32 PM »
Just got my frame, anyone have an issue with shock alignment on there 936?  If I tighten the bottom trunnion mount bolts first, the upper shock is misaligned by a few millimeters.  But when I loosen the trunnion bolts then install the upper pivot, it gets more aligned.  Pictures attached.

Lukesjr

Re: Carbonda fm936 Thoughts
« Reply #2171 on: December 07, 2022, 07:11:38 PM »
also, the shock was a super tight fit at the trunnion mount, is that normal.  I really had to push to get the shock between the trunnion bearings.

Zomb1e

Re: Carbonda fm936 Thoughts
« Reply #2172 on: December 08, 2022, 03:38:31 AM »
Just got my frame, anyone have an issue with shock alignment on there 936?  If I tighten the bottom trunnion mount bolts first, the upper shock is misaligned by a few millimeters.  But when I loosen the trunnion bolts then install the upper pivot, it gets more aligned.  Pictures attached.
This doesn't look good. You'd better contact Carbonda ASAP. If you leave it "as is", you'll get quick wear of side surface of shock's shaft/stanchion.
On my 936 shock was aligned pretty perfectly.

urbs

Re: Carbonda fm936 Thoughts
« Reply #2173 on: December 08, 2022, 05:57:34 AM »
Just got my frame, anyone have an issue with shock alignment on there 936?  If I tighten the bottom trunnion mount bolts first, the upper shock is misaligned by a few millimeters.  But when I loosen the trunnion bolts then install the upper pivot, it gets more aligned.  Pictures attached.

It is most likely the shock that is currently misaligned. Take all the air out of the shock, then you should be able to rotate it by hand.

wfl3

Re: Carbonda fm936 Thoughts
« Reply #2174 on: December 08, 2022, 06:50:19 AM »
also, the shock was a super tight fit at the trunnion mount, is that normal.  I really had to push to get the shock between the trunnion bearings.

Make sure the trunnion bearing spacers are oriented correctly and fully seated.