Derailleur hanger for Cervelo RCA

[audiophilitis]

Attempted to check alignment of the derailleur hanger on the RCA this afternoon and snapped the hanger while attempting to remove the RD. Must have used loctite on the RD bolt as I couldn't get it off. Coupe of questions:

1. Any recommend source/brand for a replacement hanger? Not sure if the RCA uses a standard hanger
2. Is the RD bolt on a Campy SR reverse threaded?

Thanks in advance.

[goodboyr]

The RCA uses the same hanger as the regular R series cervelos. I bought a wheels manufacturing one as a spare. Wheels number is 163

[ghisallo2003]

No it is not reverse threaded.

Did you build the bike yourself?

I would be extremely annoyed if someone had done that to me.

[audiophilitis]

The RCA uses the same hanger as the regular R series cervelos. I bought a wheels manufacturing one as a spare. Wheels number is 163

Is the Wheels 163 of better quality than the Cervelo? Thx.

[audiophilitis]

duplicate response

[audiophilitis]

No it is not reverse threaded.

Did you build the bike yourself?

I would be extremely annoyed if someone had done that to me.

Yes, build the bike myself. That's what bothers me -- no idea why the bolt seized. I'm pretty OCD when it comes to following torque specs.

[bombertodd]

I've had great luck with 925 Engineering hangers and the price is great. They are more durable in my experience than Wheels MFG but the finish is not as good (but they are 50-80% less money).

I don't see Cervelo on their website but you might try emailing them and see if they have.

http://www.925engineering.com/servlet/Service

[bearsdidit]

Yes, the Wheels MFG hangers are much better. OEM hangers tend to be really soft. Most of the bikes we get directly from the manufacturer need to be aligned.

[goodboyr]

The Cervelo hanger that comes stock on the RCA appears to be of much better quality than the older cervelo versions. The wheels one is just a bit nicer looking. I think cervelo acted on the feedback by making the new ones nicer. So either way you should be fine.

[audiophilitis]

The Cervelo hanger that comes stock on the RCA appears to be of much better quality than the older cervelo versions. The wheels one is just a bit nicer looking. I think cervelo acted on the feedback by making the new ones nicer. So either way you should be fine.

Thanks -- I just ordered a couple of the WM 163s. I'm now thinking this incident is probably a good excuse to switch to Campy SR EPS V2. Does anyone have this setup on an RCA? The V2 internal battery option is appealing -- just need to figure out where the charging port should be located. Appreciate your thoughts on this.

[drmutley]

It is reasonable practice to put blue loctite on the 2 retaining screws, as I find the often work loose on my cervelos. There has been numerous reports of rear dropouts snapping off on the earlier R3s, and granted this is due to the previous vertical screw orientation, I suspect a few of these were probably also due to loose hanger screws.

I concur with the boys above, the Wheels hangers are a good option. I'm running on one my S5 and it seems a little stiffer and required less realignment given I run Di2. Stiffer hangers however also have a safety trade off for your RD.

[ghisallo2003]

yes. locktite on the hanger fixing, but not the rear mech !

[drmutley]

yes. locktite on the hanger fixing, but not the rear mech !

Woops I missed that... Def no loctite on the RD bolt lol

[AndreLM]

The V2 internal battery option is appealing -- just need to figure out where the charging port should be located. Appreciate your thoughts on this.

I am planning to use the V2 battery on a NeilPryde Bura SL. I will probably leave the cable loose in the seattube, so charging would require removing the seatpost. Not ideal, but also not a deal breaker…

Another possible solution is to drill the seatpost instead of the frame… charging gets easier, but removing the seatpost becomes more difficult and risky… you would have to unplug the charging port before removing the seatpost.

[audiophilitis]

The V2 internal battery option is appealing -- just need to figure out where the charging port should be located. Appreciate your thoughts on this.

I am planning to use the V2 battery on a NeilPryde Bura SL. I will probably leave the cable loose in the seattube, so charging would require removing the seatpost. Not ideal, but also not a deal breaker…

Another possible solution is to drill the seatpost instead of the frame… charging gets easier, but removing the seatpost becomes more difficult and risky… you would have to unplug the charging port before removing the seatpost.

If the battery pack is installed with the wires on the bottom end, you will have to run the charging wire back up if you intend to access it through the seatpost. I think with the diameter of the RCA seat tube, there won't be enough room to run the charging cable alongside the battery pack. Since the BuraSL uses a 27.2 seatpost as well, won't you have the same issue?