Mounting an oval 32T chainring on an Epic Evo 2022

[guidodg]

Has anyone tried mounting an oval 32T chainring on an Epic Evo 2022?

With the round 32T there is already very little clearance to the frame and I am worried that using an oval or o-symmetric chainring it will touch when in the horizontal position.

Also the chain will rub on the rubber chainguard when on the 10 cog ...

I mounted my Carbon-Ti Monosync o-symmetrical 32T chainring but using a 6mm spider that I have...and it just touches the frame so if I get the 3mm Boost spider it should clear by 2mm or so...the problem remains the chain rub on the chainguard when using the 10 cog😗

[Riaan H]

That tells me you should rather be running a 34T, whether it be a round or an oval one!

[Steady Spin]

Any specific reason for wanting an oval?

I had endless issues with rubbing on my Evil with an oval and went back to round. Just sized up and took two extra cement pills in the morning. 

[guidodg]

a 34T would definitely touch the frame ...if anything a 30T.

have been using oval for 10 years...

[Knersboy]

The maximum chainring size for by he evo is listed as 36, so I imagine a 32 oval will work.

 

I also have an evo, and with the stock 32 chainring the guard on the chainstay rubs when in the 10t, not much you can do about that.

[guidodg]

yup...strange design by Specialized to have that chainstay so close to the chain..

[guidodg]

anyone know where I could get a BCD-76 SRAM compatible boost spider locally?

Carbon-Ti I would have to import...

[Ozzie NL]

14 hours ago, guidodg said:

Has anyone tried mounting an oval 32T chainring on an Epic Evo 2022?

With the round 32T there is already very little clearance to the frame and I am worried that using an oval or o-symmetric chainring it will touch when in the horizontal position.

Also the chain will rub on the rubber chainguard when on the 10 cog ...

I mounted my Carbon-Ti Monosync o-symmetrical 32T chainring but using a 6mm spider that I have...and it just touches the frame so if I get the 3mm Boost spider it should clear by 2mm or so...the problem remains the chain rub on the chainguard when using the 10 cog😗

Wife is running a 34T oval on Epic Evo without issues. Just take it to LBS and get them to put in some spacers to increase the offset

[PeterF]

Isn't it possible to remove the spider and fit a direct mount chainring?

[guidodg]

sure, I can buy a direct mount boost chainring but i have a really cool titanium Carbon-ti chainring as in the pic that I bought when I lived in Italy that I want to carry on using...the spider on it is unfortunately a 6mm offset..

 

 

[lechatnoir]

If that's a boost frame, it needs a 3mm offset to get the chainline correct. at least that's what I've been told to do.

[guidodg]

so… where to source a spider locally?

[Jewbacca]

3 hours ago, guidodg said:

sure, I can buy a direct mount boost chainring but i have a really cool titanium Carbon-ti chainring as in the pic that I bought when I lived in Italy that I want to carry on using...the spider on it is unfortunately a 6mm offset..

 

 

So there is the issue? Not with Spez but with using the wrong offset chainring.

My guess is you bite the bullet and buy a DM chainring and sell the other one?

Problem solved!

[guidodg]

[guidodg]

no sorry I was not clear...I need to buy a 3mm offset spider so I can use my chainring as pictured above...it is a titanium one, quite pricey and last literally forever..this one has over 10000km on it and still looks new.

I tried it on the Epic Evo using my current 6mm spider and it barely touches so with the 3mm boost spider it will be fine

Obviously I could just buy a 3mm offset direct mount oval chainring...but I really want to use my titanium one😄

Edited April 1, 2022 by guidodg