SZZS specific CEF50-main thread (initial builds and troubleshooting related only)

[ssl]

It was the main pivot bolt that fits into the rocker arm near the top shock mount. It was 8 mm too short amazingly.
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I eventually broke the mating bolt mid-ride but was able to ride it back to my truck with no damage, but marred up the paint a little at the pivot joints of the stays due to lopsided slack creating friction points. So, I found out the correct size and had both Ti pin/bolt custom made, in a weekend luckily.

No problems since (7 of 8 months). SZZS eventually sent a warranty replacement pivot pin/bolt assembly that I've kept on hand as a spare. Just poor quality control and I didn't have reason to pull the linkage bolts to check them all out prior.

I posted the whole story in our thread last June or July for pics and further details.

Do you have screw sizes specs and even better where to order them as quality of screws is bad, even with new shipped frames (got mine 2 weeks ago) and threads are already gone on some from working on them.

 

[ssl]

Since you're in the US, I used Huk-Tek: engineered bike hardware out of Michigan.
The owner is Derrick.

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Contact in Facebook or email:
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He modified the mating bolts with thicker heads and larger threads to match the custom pins (thru-bolt) so my specs are specific to the custom hardware. I went with Ti, super expensive due the pin cost which was most of metal used.
View attachment 148248
I recommend keeping the OEM AL pins and just having Derrick match them to Aluminum or steel mating bolts (don't know if he'll do steel, Plus, Al might be a better choice with existing Al pins).

I recommend a good digital caliper to measure accurately. Just work with Derrick directly for sizing specs needed. Good Luck!

Do you have size specs for all of them?

 

[TCFlowClyde]

Do you have size specs for all of them?

Both the pins and mating screws custom specs to beef them up. So both have bigger screw beds and threads.

I recommend just using the same lengths and thread size for the mating bolts and keep your Al pins from SZZS. You'll save a lot of cash that way and they'll be very strong.

 

[ssl]

Both the pins and mating screws custom specs to beef them up. So both have bigger screw beds and threads.

I recommend just using the same lengths and thread size for the mating bolts and keep your Al pins from SZZS. You'll save a lot of cash that way and they'll be very strong.

So you don't have exact specs? As have to remove all to see and measure

 

[TommyR]

For what it’s worth, I’ll be removing and measuring all of the suspension hardware once my frame arrives. I’ll be sure to share it here once I do. I have some Ti shock mounting bolts, but need the frame to verify sizing.

 

[ssl]

For what it’s worth, I’ll be removing and measuring all of the suspension hardware once my frame arrives. I’ll be sure to share it here once I do. I have some Ti shock mounting bolts, but need the frame to verify sizing.

Ordered shock once on Ali.....33mm and 38mm as people said perfect fit while motor and rest of the frame seems to be "custom" sizes

 

[TCFlowClyde]

So you don't have exact specs? As have to remove all to see and measure

So you don't have exact specs? As have to remove all to see and measure

I don't off hand because it was a year ago. Unless you're planning on using custom pins, they'll be different diameter sizing than OEM, so my bigger custom hardware won't match up to the smaller bolt thickness on the CEF50.

 

[ssl]

I don't off hand because it was a year ago. Unless you're planning on using custom pins, they'll be different diameter sizing than OEM, so my bigger custom hardware won't match up to the smaller bolt thickness on the CEF50.

But they fit well on the frame no?

 

[TCFlowClyde]

But they fit well on the frame no?

Yes, perfect fit in the frame...no slack. It's the thread bed of the pins that are a larger bore, so the mating screw/bolt shank could be made thicker. The outer diameter of the pin and the thread pattern is the same as stock SZZS.

 

[ssl]

Yes, perfect fit in the frame...no slack. It's the thread bed of the pins that are a larger bore, so the mating screw/bolt shank could be made thicker. The outer diameter of the pin and the thread pattern is the same as stock SZZS.

Excellent sonof you can put specs of each would be great so can try get them made in Europe. You provide is US based? He ships worldwide?

 

[TCFlowClyde]

Honestly, I don't know if he ships international...I'd guess probably yes. Contact him via email or Facebook and just tell him what you want. He'll help you with your custom measurements. If you do, then just list your measurements for others on this thread.

Good luck!

 

[Wix]

Cześć wszystkim. Szukałem, ale nie znalazłem żadnych informacji na ten temat, więc proszę powiedzcie mi, jeśli wiecie:

Jaka jest rzeczywista wysokość bb? Producent mówi, że 360mm, prawda?

Is that any space for ad offset bushing or longer shock? Many riders here suggested longer shock for longer travel and mullet conversion, but trully i see almost zero place for rear triangle bending - collision between chainstay droputs / main pivot axle and motor mount.

 

[TCFlowClyde]

Cześć wszystkim. Szukałem, ale nie znalazłem żadnych informacji na ten temat, więc proszę powiedzcie mi, jeśli wiecie:

Jaka jest rzeczywista wysokość bb? Producent mówi, że 360mm, prawda?

Is that any space for ad offset bushing or longer shock? Many riders here suggested longer shock for longer travel and mullet conversion, but trully i see almost zero place for rear triangle bending - collision between chainstay droputs / main pivot axle and motor mount.

I and a handful of others are using the 210 x 55 setup. I think most are mullet/mixed.

I don't think anyone has gone up to the next longer shock size of a 230 x 57.5/60 with an offset bushing. I think that would really be pushing the kinematics of the frame design. The 55 stroke seems to be the limits with the 210 eye-to-eye length.

But that said, you could try it and just mount it statically first and see what happens. If an air shock, deflate it completely and see how it close it gets to rocket arm joint before it rubs.

With my 210 x 55, I could only put in a standard piece of printer paper in without indentation....so far so good after a year and half with only small jumps/drops.

 

[Wix]

Thanks, but next step is 216x63

 

[TCFlowClyde]

Thanks, but next step is 216x63

Sure, but same response....just less risky. No one has tried a 216 x 63 and posted here, however if it works then let everyone else know.Also, technically isn't the next step up the 216 x 57?
Additionally, I thought about the 210 x 57 but figured the 57 stroke would be too much...that might be the logical max?

 

[Wix]

Ok but all at all any shock cant be use if the swingarm has no space and get contact with frame. I have one guy in Poland who built cef and I will check. Anyway this bike as mullet without.geometry conversion is not a good way IMO. With small wheel on the back geometry is.too much radical.

 

[TCFlowClyde]

Anyway this bike as mullet without.geometry conversion is not a good way IMO. With small wheel on the back geometry is.too much radical.

Sure, not having a geo flip-chip is less than ideal, but I suspect the kinematics difference is marginal without one. Some very experienced CEF50 riders are using mixed wheel successfully. They probably were already riding mixed on other bikes and desire a little more agility. This can feel twitchy in handling to those using straight 29ers. It's personal preference.

Others can chime in with mixed to report their experience.

Also, it sounds like the CEF50 might not meet your needs? What you see, is what is being offered from SZZS. Maybe a future version can be designed with a flip-chip and bigger Enduro travel like 180/170, but I think it's original intent was a 29er 170/150 trail frame that others including myself have been able to push a little more successfully so far.