For all the 520 Chain converts out there just and FYI

cristhian702 · Oct 12, 2016

endodoc said:
Cristhian 702 is this the AEM flange you are using, the black one?

yup that's the one, oh and my OEM set up was rubbing on the swing arm. AEM flange and carrier, titanium nuts/bolts, stock cush drives, D3 40T sprocket. Out front is stock sized D3 sprocket and 3D black and gold chain. Never had any more issues with chain rubbing and the chain is smooth when adjusted properly.

endodoc · Oct 12, 2016

Let us know how the flange holds up. That is probably the lightest flange out there. You can see the difference in material around the cush drive holes between the CNC unit and the AEM. I went with the heavier Ti CNC just beause of the increase in HP and sloppy shifting by myself. I do know a guy who did crack an AEM flange at the bolt hole. There is not a lot of material there. The AEM flange is closer to spec than the CNC (at least the ones I have) 3 of the bolt holes in the CNC flance had to be slightly machined to fit the AEM Ti drive pins as they were slightly tighter that the other three. The AEM flange holes were perfect. The Ti CNC is noticeably heavier that all the flanges. So far the AEM Ti drive pins and cush drive pieces are holding up very well with no signd of wear of deformation. Not cheap though.

cristhian702 · Oct 13, 2016

I started to notice a bit of horizontal play within the assembly but nothing worth worrying about. I understand that you will never have perfect fit and finish unless you have extremely tight tolerances but to me it seems like normal wear. The cush drives I will replace shortly since I do believe that's where the small amount of play is coming from. Other than that I do ride this bike hard and the components have held up just fine. As far as the Ti Flange I believe I was recommended not to go that route due to longevity if I recall correctly.

cristhian702 · Oct 13, 2016

It's amazing the amount of stress these components go through for as light that they are. Completely transformed the bike with proper gearing. I'll be tearing the bike down in the next month and I'll inspect this section as well. If anything comes up I'll let you guys know.

MrBIgBiker · Nov 5, 2016

endodoc said:
So as my bike is sort of an evolving test bed for R&D I decided to try the EK 3D SB chain. Traditionally I always use the DID ERV3 520. So like an idiot, I was not thinking of the possible idiosyncratic mindset that exists between manufacturers and installed the 3D. I now have a few scratch marks on the swing arm. No big deal. Im not a cosmetic guy. The issue is that had i not failed to measure the width of the pins between the EK and the DID, this would not have happened. Point. The EK 3D SB 520 chain is wider by 4mm than the DID ERV3 520. If your one of the guys who has an issue with the stock 530 rubbing on the swing arm and switched to a 520 setup and fixed it, you may have a clearance issue with the RK 3D 520. Im guessing to get their claimed strength numbers that EK beefed up the plates a bit. Unfortunately, the EK 520 is almost the size and weight of the 530. Well i gave it a shot. Nice looking chain. Im going back to the DID.

I work with EK,
measured the MVXZ vs 3D chains (all 520, 525, 530).
what i call "inner width" is the width of the outer plates
what i call "outter/external width" is the width of the pins.

there is 2mm difference between each size
the 3D is 1mm wider then the MVXZ in the inner width i guess do to the black coat. (outer width is the same in the same pitch)

4mm is a lot between the EK 3D and DID, are you sure about that ?
but I still dont understand, the stock pitch is 525, if you convert to 520 the chain width is anyway smaller no meter which brand... so how it happens ?

do you have a pic of the scratch marks ?

ed218 · Nov 6, 2016

DID for life. I never had one break, street or track. I won't try another chain based on that. DID used to make a 525 evr race, used that on street and 520 on track. Now it just 520 all the way!!!!

For all the 520 Chain converts out there just and FYI

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