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-   -   What are these? (https://www.bikeforums.net/bicycle-mechanics/1223484-what-these.html)

cybirr 02-10-21 08:02 PM

What are these?
 
I noticed these two odd lugs? bolts? on the bottom of a Specialized Shiv left side chain stay. What are they for? Thank you.


https://cimg7.ibsrv.net/gimg/bikefor...7b09bb7cd0.jpg
Two small bolts on bottom of left side chainstay

trainman999 02-10-21 08:34 PM

my guess would be a speed/cadence sensor

sdmc530 02-10-21 09:34 PM

Do you have disc breaks on the bike?

cybirr 02-10-21 09:48 PM


Originally Posted by sdmc530 (Post 21918975)
Do you have disc breaks on the bike?

No, rim brakes. These two odd features are about a third of the way towards the bottom bracket on the underside of the left chain stay.

Outrider1 02-10-21 09:59 PM

I'm with trainman.

Outrider1 02-10-21 10:00 PM

I'm with trainman.

cxwrench 02-10-21 10:59 PM

External Di2 battery.

AeroGut 02-11-21 05:06 AM


Originally Posted by cxwrench (Post 21919030)
External Di2 battery.

yes, definitely a battery mount

Troul 02-11-21 05:13 AM

any better picture?

Ghazmh 02-11-21 05:30 AM

My guess is it was for boxing and shipping purposes.

sdmc530 02-11-21 08:40 AM

So the guy at my shop says its probably one of two things:


Either its a cover or some sort of mounting parts for disc breaks OR is a Di2 mounting location.

Other than that he has no idea. And he has been working at a Spec shop for 15 years.

cybirr 02-11-21 08:49 AM


Originally Posted by Troul (Post 21919159)
any better picture?

Good idea, better pictures. Appreciate the looks. Here are two better photos. Reviewing the accompanying manual, no indication what they are for.


https://cimg1.ibsrv.net/gimg/bikefor...9cb8d9f457.jpg
https://cimg6.ibsrv.net/gimg/bikefor...fa2e0e54ef.jpg

Crankycrank 02-11-21 09:03 AM

I would contact Specialized.

Iride01 02-11-21 09:24 AM

Well despite me earlier thinking that it was a mount for disc brake versions, the pic's show it way too forward. So now I'm in the speed/cadence sensor camp. Maybe their own SpeedZone sensor. And I guess maybe a Di2 battery, though I can't imagine why there on the newer bikes when they now go so many other places inside frame or bars easier.

Maybe it's a kick stand mount!! <grin>

cybirr 02-11-21 09:27 AM

SOLVED

A friend showed me a pic. It's for the first generation Di2 battery packs as mentioned by others. Thank you all for the info and time.

Dan Burkhart 02-11-21 09:39 AM


Originally Posted by Iride01 (Post 21919390)
Well despite me earlier thinking that it was a mount for disc brake versions, the pic's show it way too forward. So now I'm in the speed/cadence sensor camp. Maybe their own SpeedZone sensor. And I guess maybe a Di2 battery, though I can't imagine why there on the newer bikes when they now go so many other places inside frame or bars easier.

Maybe it's a kick stand mount!! <grin>

That was my first thought but then I looked up the model and saw it's a tri bike. Mind you, it has been done.
https://cimg1.ibsrv.net/gimg/bikefor...0d6fd06445.jpg


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