So...what are those little rubber ring thingies called...?

[Lewis Moon]

...yes you can extrapolate on that...

What I'm looking for is the little rubber ring that you can put on a seat post to keep water from sneaking down between the seat post and the frame. Not a huge problem but, belt and suspenders. I think Fizik used to make them.

[Jaybee]

I'm not familiar with the particular bike part you are talking about, but it seems like a $0.50 o-ring from Ace could serve this purpose.

Is that what the part is like?

[Lewis Moon]

I'm not familiar with the particular bike part you are talking about, but it seems like a $0.50 o-ring from Ace could serve this purpose.

Is that what the part is like?

Actually it is conical, for lack of a better description, to route water away from the opening.

[srcarter]

Seatpost Ring?

https://www.wiggle.com/fizik-seatpost-ring/

[donevwil]

Seatpost Ring is what Fizik calls it.

https://s1.thcdn.com/productimg/0/960/960/14/10867514-1397589701-351211.jpg

[Lewis Moon]

Found it: https://www.wigglestatic.com/product-media/5360088619/Fizik-Seatpost-Ring-Seat-Posts-Black-FZKRB1S009.jpg?w=430&h=430&a=7

[Lewis Moon]

Thanks. SO many things they could have called that...and they settled on "Seatpost Ring". Triumph of the mundane.

[vqdriver]

i got mine used so it didn't come with the ring, but does it actually create a seal? i thought it was for marking post height.

[93KgBike]

Funny, I was just looking for my super-heavy weight grease, to fill the seat post/collar line against water last night.

Do those things work?

[sparky33]

That Fizik rubber ring thing has a purpose?

[David Kirk]

What size do you need?

dave

[cnighbor1]

If SP remains in a set position You could just apply clear sealant around it at top of seat post lug

...yes you can extrapolate on that...

What I'm looking for is the little rubber ring that you can put on a seat post to keep water from sneaking down between the seat post and the frame. Not a huge problem but, belt and suspenders. I think Fizik used to make them.

[Mikej]

May help a little, but lots of water will enter through the frame slot below the binder. Do you have a drain plug in your bb?

[Mike Bryant]

Suggestion:
If you don’t have a drain hole in your bottom bracket shell, and you hang your bike on the wall by a wheel; hang it by the front wheel after a wet ride, where the seat tube slopes downward and the water can drain out.


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[fignon's barber]

You live in Arizona. How much rain can you get in your seatpost?

[Lewis Moon]

You live in Arizona. How much rain can you get in your seatpost?

Getting caught in a monsoon storm can be huge here. I've been caught out four or so times over the last couple years. Each time I've had to pull my bb and blow it out with a compressor.

[Lewis Moon]

Basically, what I want to do is build a commuter/trail/cross bike that can be "rode hard and put away wet"...I'm not a fan of finicky maintenance on what is essentially my "C" bike.
I just remember riding my Ritchey in a monsoon storm last October and coming home at the end of the day and popping it up on its back wheel to walk it into the garage and seeing about 3 cups of water spill out of the vent holes in the chain stays. Really. For a bike you want/need to commute on daily, having to completely tear it down so you can ride it the next day is never a happy time.

[Black Dog]

Basically, what I want to do is build a commuter/trail/cross bike that can be "rode hard and put away wet"...I'm not a fan of finicky maintenance on what is essentially my "C" bike.
I just remember riding my Ritchey in a monsoon storm last October and coming home at the end of the day and popping it up on its back wheel to walk it into the garage and seeing about 3 cups of water spill out of the vent holes in the chain stays. Really. For a bike you want/need to commute on daily, having to completely tear it down so you can ride it the next day is never a happy time.

Drill a drain hole in the bottom bracket; let the water drain out as soon as it gets in. Grease the inside of the BB shell and make sure the drain hole is open and water will never accumulate or cause rust. The water that was pouring out of your chain stays came from the bb when you tilted the bike up.

[Jaybee]

Drill a drain hole in the bottom bracket; let the water drain out as soon as it gets in. Grease the inside of the BB shell and make sure the drain hole is open and water will never accumulate or cause rust. The water that was pouring out of your chain stays came from the bb when you tilted the bike up.


This^^. I've had a variety of steel bikes that were "lock-up" bikes. A couple that had to live outside when we were in our tiny grad school apartment in Tucson. None had any rust when pulled apart after a season or three. Hole in the BB, proper Frame-Saver or rust prevention of your choice, and you'll be fine.

[Lewis Moon]

This^^. I've had a variety of steel bikes that were "lock-up" bikes. A couple that had to live outside when we were in our tiny grad school apartment in Tucson. None had any rust when pulled apart after a season or three. Hole in the BB, proper Frame-Saver or rust prevention of your choice, and you'll be fine.

What about carbon? Not as many infiltration points but you'd be amazed how much can get inside a frame when you're riding through the natural equivalent of a fire hose. The X-Fire won't have under BB cable guides so i'd need to drill.

[Lewis Moon]

Drill a drain hole in the bottom bracket; let the water drain out as soon as it gets in. Grease the inside of the BB shell and make sure the drain hole is open and water will never accumulate or cause rust. The water that was pouring out of your chain stays came from the bb when you tilted the bike up.
Yeah, that's exactly where it sits...so why did cut out BBs fall out of favor?
https://c2.staticflickr.com/4/3635/3500007343_cdf82c0484_z.jpg?zz=1

[Jaybee]

What about carbon? Not as many infiltration points but you'd be amazed how much can get inside a frame when you're riding through the natural equivalent of a fire hose. The X-Fire won't have under BB cable guides so i'd need to drill.

Drilling into carbon seems like a different animal, but there are members here who would be qualified to comment on it. I'm not one of them.

I believe you on the quantity of water - I grew up in the desert SW and know what it's like to get caught in a serious monsoon.

[kramnnim]

(Edited)

[bshell]

+1 Drain hole.

Maybe try 2-3" of a butyl tube to cover the post/collar/slot?

[72gmc]

^^^^ that! Cut a donut out of an old tube, put it on the seat tube, re-install the seat post, move the donut so it's covering the connection point.

I did this on an old MTB and it worked great. Plus, you get to call it whatever you want.

[Mark McM]

Yeah, that's exactly where it sits...so why did cut out BBs fall out of favor?
https://c2.staticflickr.com/4/3635/3500007343_cdf82c0484_z.jpg?zz=1

BB cutouts might be okay for road riding, but in offroad riding (MTB, 'cross, gravel, etc.) these cutouts let in too much mud - and mud not only is tougher to get out of the frame, but it holds onto moisture better, so it might actually increase internal rust.

[Lewis Moon]

BB cutouts might be okay for road riding, but in offroad riding (MTB, 'cross, gravel, etc.) these cutouts let in too much mud - and mud not only is tougher to get out of the frame, but it holds onto moisture better, so it might actually increase internal rust.

Ah...hadn't thought of that. Good catch.