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Seat mounted hydration system

By MarkkyMarkk - Posted on 20 April 2011

NB: Originally posted elsewhere on the Global Riders Network and appears via syndication.

I can't decide if this is a good idea or not.

I like that the weight is off your back, but it seems a little too high & would affect balance - especially if its half-full (or half-empty) & the water is sloshing from side to side through tight turns.

It's certainly handy for those with funny shaped frames that cannot fit a bottle mount.

You've seen the discussion about Saddle Bags and Frame-Fit Bags, right? Where I brought this up:

Although the back of the seat mount is obviously less intrusive.

My concern would be what happens on techy descents. In the absence of a dropper seatpost, getting your bum back down behind the saddle could result in a collision with some, erm, sensitive parts. Shocked

Any dropper seat post probably wouldn't work with the extra weight.

@Brian: So you can't adjust the air pressure?

I don't know as I have never used one. I just imagine they are designed for the average weight saddle.

@Brian - I would've thought that a dropper seat-post would be designed to support a variety of rider weights, so a kilo or two of water mounted on the seat-post wouldn't make much of a difference there?
Not that it really matters to me, as I don't have one - but I can see that it could be an issue with this type of hydration mounting location.

I've been having a few lower back issues lately, so I'm open for any ideas that may help. I usually take a camel pak as water bottles tend to fly out of the down-tube mount as soon as I hit any reasonable sized bumps...

@Rob, I hadn't seen that previous discussion, but that system seems rather bulky & intrusive...

I think when the seat post drops its ok but when it raises you actually aren't seated at that time.

Regardless of the dropper seatpost, I'm still not keen on the location. It's quite common to come up to an obstacle suddenly on a course and you wouldn't have time to get the seatpost down. I find the seat ends up nestling up near the solar plexus quite a lot while negotiating techy roll-downs.

I reckon I'd find it rather hard to concentrate on braking and where the front wheel was supposed to go after being clocked by that thing in the family jewels. EvilEye-wink

I've also found weight high up makes the bike unstable - for example, on slow speed switchbacks with panniers loaded, where I'd normally ratchet myself around successfully, the bike has suddenly tipped and caught me by surprise and I've almost clipstacked.

Happy to be proven wrong though.

Yeah, I'm not convinced that its such great idea now.
It might be fine for touring but not so good for MTB - I'm going to give it a miss.

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