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BTS bottle help
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I am wanting to run a single bottle behind my seat(for the purpose of storing spare tube/flat repair kit essentials). For my actual hydration I’m planning on using an X lab BTA torpedo and an X lab Aero TT bottle on the frame.

My issue is that my saddle is pushed pretty far forward(this was the result of a professional fitting). My bike is also a road bike with tri modifications, which is part of the reason that the sear has be be so far forward.

My big issue-which BTS systems can I use with so little clearance room at the back???

*Edit-my current saddle is a Specialized Romin(picture has been added)


M.S. x 2; CSCS; ATC/LAT, Functional Movement Specialist, USA Track and Field Level 1
Last edited by: Clyde M.: May 24, 20 7:23
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Re: BTS bottle help [Clyde M.] [ In reply to ]
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Clearly the best solution is to buy an entirely new tri bike.

Short of that... are you using a fast forward seat post? Using one might allow you to keep your seat position but also recenter your saddle opening up a lot of standard options.

Or... if it’s just a flat kit back there zip ties are your friend. You’re not going to Be accessing it on the fly so zip ties will get the bottle holder high and tight.

________________________________________________________
Taylor Rogers

2024: IM Hamburg
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Re: BTS bottle help [Clyde M.] [ In reply to ]
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Might be helpful to know what model saddle you have for xlab model compatibility. I've seen pics of the profile design aquarack which attach to the seatpost and not the saddle rails, maybe that's an option.

But zip ties are probably an equally good solution given you wanna use it for storage and not a bottle.
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Re: BTS bottle help [PBT_2009] [ In reply to ]
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Thanks.


I have a specialized romin saddle(Xlab doesn't list it as being a compatible saddle); I've added a picture to my OP to show how much space I have on the rails.


I may look into the profile design aquarack or zip ties


M.S. x 2; CSCS; ATC/LAT, Functional Movement Specialist, USA Track and Field Level 1
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Re: BTS bottle help [xcrogers] [ In reply to ]
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I actually had a forward seat post added during the bike fit.

I know that I could opt for a different saddle with longer rails, but for me that's a last resort as I really like the saddle that I have.

Zip ties may be the answer


M.S. x 2; CSCS; ATC/LAT, Functional Movement Specialist, USA Track and Field Level 1
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Re: BTS bottle help [Clyde M.] [ In reply to ]
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Picture doesn’t appear to be a fast forward seatpost... (or at least the one I have) so I’ll take your word that even once fitted doesn’t work. Bummer.

I think zip ties are your friend here. It will get it snug and tight under the seat. With infrequent (hopefully no) use I think it will be the lightest and best way to get it out of the wind. Just check before each race the ties are still good (haven’t rubbed or anything) so you don't drop it mid race.

________________________________________________________
Taylor Rogers

2024: IM Hamburg
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Re: BTS bottle help [xcrogers] [ In reply to ]
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It's not a true "fast forward" seat post, but it is one that was quite a bit more forward than the factory seat post.

I haven't tried any rear hydrations systems yet, out of fear that I don't have enough space.

I may try a system; if it's not compatible I can always send it back and go with zip ties


M.S. x 2; CSCS; ATC/LAT, Functional Movement Specialist, USA Track and Field Level 1
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Re: BTS bottle help [Clyde M.] [ In reply to ]
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Here is a picture of mine on my trainer, set up the road bike to be as sim to the race bike as possible and used the FF post. Can see it allows for a lot more movement back and forth. I would think that if you made that switch you could find some room for a 'standard' kit. Even without you might be able to squeeze PD's rear hydrtion on your set up, the mount has a single rear bottle attachment point which would sit centerline. Could be an option?

https://profile-design.com/...stems/products/rml-1

________________________________________________________
Taylor Rogers

2024: IM Hamburg
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Re: BTS bottle help [xcrogers] [ In reply to ]
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Thanks for that.


I may try the PD RML and see what happens; it seems to attach to the vertical/slanted section of the rails and not the horizontal, so it may work.

If that doesn't work I'll probably just go with zip ties. I'm not opposed to the fast forward seat post(I actually had the exact one you have on my previous bike), but I wouldn't won't to do that without a trip back to the bike fitter


M.S. x 2; CSCS; ATC/LAT, Functional Movement Specialist, USA Track and Field Level 1
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Re: BTS bottle help [Clyde M.] [ In reply to ]
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Have you looked at the Xlab Delta 200 or 225? I use the 225 on my ISM PR 2.0 and the transition hook doesn't bother it so I think that it would work on your seat.
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Re: BTS bottle help [Clyde M.] [ In reply to ]
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Sorry Clyde for the delay - we have reduced our hours slightly and only just seeing this.

Yes unfortuantely there are a multitude of saddles out there and we just can't list all of them.

It seems you are looking for a 2-bottle system. I took a look at your saddle though and I don't see any issues with XLAB compatibility.Most of our 2-bottle systems (minus the SMP specific mode) would fit no problem with the setup you have and you can mount on the vertical rails as well.

If you are worried about the back of the seat post hitting, I would probably steer you toward the Mini Wing 105 which has 2 independent brackets that you can adjust accordingly. Also comes with 2 high gripping cages. Another alternative is the Super Wing or Turbo Wing which have the cages off to the side and away from your seatpost.

Let me know if I can help further in any way!

Candice Turner
CEO
XLAB - Aerodynamic Triathlon Accessories
Dawn to Dusk - Off-road Specific Storage Accessories
http://www.XLAB-USA.com http://www.dawntodusk.bike
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Re: BTS bottle help [Candice - XLAB] [ In reply to ]
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Thank you for the response!

I would actually prefer a single bottle system.

Are your single bottle systems compatible with my set up/saddle and can mount to vertical rails


M.S. x 2; CSCS; ATC/LAT, Functional Movement Specialist, USA Track and Field Level 1
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Re: BTS bottle help [Clyde M.] [ In reply to ]
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The only one I would recommend would be the Delta 400. Unfortunately with the Delta 105/200 models - the bracket is more vertical and condense so it most likely will hit the back of the saddle. There is also no adjustment on those, whereas there is with the Delta 400.

If you can measure the distance between the back of the rail and the back of the saddle (imagine if you were putting 2 invisible lines down at each point - I would want to make sure the arms on the 400 model would clear.

Candice Turner
CEO
XLAB - Aerodynamic Triathlon Accessories
Dawn to Dusk - Off-road Specific Storage Accessories
http://www.XLAB-USA.com http://www.dawntodusk.bike
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Re: BTS bottle help [Candice - XLAB] [ In reply to ]
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The horizontal distance from the end of the rail to the back of the saddle is about 1.5 inches


M.S. x 2; CSCS; ATC/LAT, Functional Movement Specialist, USA Track and Field Level 1
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Re: BTS bottle help [Clyde M.] [ In reply to ]
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Thanks Clyde - initially - I think that is a minimal amount and should work, but I want to make absolute sure and unfortunately don't have a carrier with me. Once we are in the office tomorrow I can confirm back.

Looking at this photo, I think that has about the same distance as you have.

Candice Turner
CEO
XLAB - Aerodynamic Triathlon Accessories
Dawn to Dusk - Off-road Specific Storage Accessories
http://www.XLAB-USA.com http://www.dawntodusk.bike
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Re: BTS bottle help [Candice - XLAB] [ In reply to ]
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Hi Clyde,

So after conversing with my colleague we do think you will be fine with a Delta 400 system. Especially if the distance is 1.5".

We have a Delta 425 on an ISM Attack saddle here and the distance from the rail to the back is 3+ inches.

Hope this helps!

Candice Turner
CEO
XLAB - Aerodynamic Triathlon Accessories
Dawn to Dusk - Off-road Specific Storage Accessories
http://www.XLAB-USA.com http://www.dawntodusk.bike
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