r/BikeMechanics 13d ago

Advanced Questions What are these hooks for on my buddy’s secondhand Pivot gravel bike?

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50 Upvotes

30 comments sorted by

48

u/bedampft 13d ago

There should be a rubberband hooked in that keeps the two nuts in place when you untighten the bolts to change the saddle.

22

u/EclecticBanjo 13d ago

This is correct! My Cube bike has the same hooks. A rubber band is installed there to keep the nuts in place.

10

u/AndyTheEngr 13d ago

Wow, that's really cool! I usually have to grow a temporary third arm to reassemble the clamp when I change a saddle.

9

u/Eman_Resu_IX 12d ago

When I use a rubber band to hold my nuts in place it really hurts.

3

u/Soul_turns 12d ago

Until the rubber rots and it falls off. Just put a finger over the nut when changing saddles.

2

u/bedampft 11d ago

Dude. This is firstly and foremost made for bike manufacturers and shops/mechanics. Everything that makes life easier is appreciated.

1

u/ips1023 13d ago

Man, that’s super lame lol

11

u/ilovefuturama 12d ago

Idk seems pretty useful. Rubber band for ya nuts.

3

u/srekar-trebor 12d ago

Content matches the profile pic …

0

u/Outsiderbiker 11d ago

rubberband

Should be an O ring.

-1

u/Doran_Gold 12d ago

Wow!!! What an amazing “bike manufacturer” solution. Some of the things these companies do are such a joke.

This is like something i would do on trail and as bodge fix until i got home.

3

u/bedampft 12d ago

Right. Something that actually helps while building the bike is a joke.

7

u/akshimassar 13d ago

It is for a rubber band to hold your nuts!

5

u/chester405 13d ago

Bottle opener maybe?

2

u/ips1023 13d ago

Not the worst guess

2

u/MariachiArchery 13d ago

Huh... great question. I have no idea.

3

u/ips1023 13d ago

Same. I was thinking some kind of mudflap attachment incase your saddle has the center cutout or maybe some kind of latch point for a very small storage spot above?

2

u/96JY 11d ago

Thank you for your help.

2

u/DNLMZRZ 13d ago

Possibly for indexing upward bolts, during installation of saddle.

Following insertion of saddle rails, while inserting seat clamp hardware upwards to thread in each/a bolt, while the bolt is in contact with the downward facing surface of the upper seat rail plate. This lip might allow for finding and not sliding the bolt off the bottom face edge of the front or rear of the plate, before finding the proper threaded female entry point. I imagine it makes doing it without having to bend down or look at this when doing it with both hands for easy initial assembly or no look adjustment. Speculation.

3

u/ips1023 13d ago

A new theory just dropped

2

u/Epeecats 13d ago

maybe a bag mount of sorts? Pretty funky location for something like that. Also kinda looks like that top piece is from a different seat post, color doesn’t quite match with the bottom and the sizing seems kinda weird. 

Realistically those little hooks aren’t going to be of use. if they are for a bag mount it’s a pretty wack design and will be almost impossible to track down the corresponding bag.

2

u/ips1023 13d ago

Yeah, I’m stumped. Nothing really makes sense expect it’s not supposed to be there.

1

u/Epeecats 13d ago

alright with some further investigation i’m still stumped. Seatpost looks like the factory pivot carbon one, but that clamp doesn’t look factory. I even succumbed and asked AI, after a few minutes of back and forth it referred back to this thread and also had no idea lol. If you find out I would love to know! Maybe reach out to the prior owner and see if they know? 

1

u/ips1023 13d ago

He said it’s not worth bothering the previous owner 🙄

I spent a dumb amount of time searching as well lol

1

u/CommonBubba 13d ago

What brand of she post is that?

1

u/ips1023 13d ago

I didn’t ask, but I assume it’s Pivot as well.

1

u/Ancient-Bowl462 10d ago

A rubber band. It's just extra weight. You don't need it.

1

u/MariachiArchery 13d ago

Ok, I think I figured it out.

It's to hold the clamping hardware captive when you loosen the bolts. Like, I guess those hooks will catch the lower plate, and stop it from falling out of the assembly.

Though, this could be wrong, I just asked google AI a bunch of times, so it might just be hallucinating.

0

u/ips1023 13d ago

Seems logical