I don't use anything behind the seat. Not that it I am making personal comparisons, but most of the Pros don't either. You can reduce the impact on aero-ness by positioning and things like that, but at the end of the day, it's aero negative.
I run a bottle between my arms with water, a bottle on the downtube with nutrition and I keep the tire change tools, tube and Co2 in the bento box behind the stem. I also have a spare tube under my saddle.
I pretty much have to run a behind the seat bottle on my current frame (P4) since there are no bottle bosses on the frame itself. I get the one integrated frame bottle and I've added a BTA (between-the-aerobars/arms) bottle up front.
That's simply not enough for training, and it doesn't give me the ability to rack an extra bottle at any aid station to refill my BTA on-course. As a result, I run an extra bottle behind the seat, and for racing I always/only ride single-bottle setups and keep the amount of stuff I'm dragging behind me pretty minimal. For some bike setups, I like the XLAB delta series of single bottle mounts, but some of the new seats with integrated water bottle cages are pretty slick, I especially like the mount on the new Specialized Sitero saddle.
Do a search for the raceday bike setup thread and there is a *ton* of discussion on this as well as ample pictures. My best consolidated take on this would be that for training, do whatever you want, drag a kitchen sink behind you if you like. For racing, less is definitely more, but I think the aero-penalty of a single, well placed behind the seat bottle is negligible.
As for tools, I've been running a Dark Speed Works aero bento right behind my stem, also very minimal aero impact.
I don't use anything behind the seat. Not that it I am making personal comparisons, but most of the Pros don't either. You can reduce the impact on aero-ness by positioning and things like that, but at the end of the day, it's aero negative.
I run a bottle between my arms with water, a bottle on the downtube with nutrition and I keep the tire change tools, tube and Co2 in the bento box behind the stem. I also have a spare tube under my saddle.
I run similar except my tube and co2 is in a very small bag under the seat. Bottles are between the arms and I have an aero bottle that fits my transition frame. Bento box behind stem houses gels or clif shots or whatever
used to have my botttles behind the seat. As i used EN to tweak my position and now have a quite agressive one, found out a speedfill BTA (for water) + 1downtube mounted bottle cage (for calories) works better for me. I hold my 2 spare tubes in a xlab stealth pocket screwed where the other bottle cage is supposed to be (on the seat tube)+ another steah pocket with levers, mimipump and 2 co2 cartridges behind the stem. Reasons for leting go of the behind the seat system was: - very controversial studies all over the map as if they are more or less aero than frame mounted bottle cage -figured out during my rides that i have to seat upright every time i have to reach my behind the seatbottle (thus very not aero). In the contrary, i can stay in the aero position when i reach for my frame monted bottle, take a pull of camories, and put it back. -My A race was IM Australia, very bumpy roads, and didn't want any bottle launched as i planned on having my own calorie drink and not rely on gatorade ps: i think your race is next week, would advise not to try anything fancy/new for it, go with what u trained with. Good luck with your race
Like many; I use a BTA A2 system upfront...and refill on course using back up cages/bottles in the rear ...I keep tube underseat & use a behind the stem bentobox for small tool(s) and xtra gels/s caps.
I removed my bottle on the downtube...after rendering it somewhat useless by peeing on it.....peeing myself on the bike was ok...drinking from the bottle didn't seem right..
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I run a bottle between my arms with water, a bottle on the downtube with nutrition and I keep the tire change tools, tube and Co2 in the bento box behind the stem. I also have a spare tube under my saddle.
That's simply not enough for training, and it doesn't give me the ability to rack an extra bottle at any aid station to refill my BTA on-course. As a result, I run an extra bottle behind the seat, and for racing I always/only ride single-bottle setups and keep the amount of stuff I'm dragging behind me pretty minimal. For some bike setups, I like the XLAB delta series of single bottle mounts, but some of the new seats with integrated water bottle cages are pretty slick, I especially like the mount on the new Specialized Sitero saddle.
Do a search for the raceday bike setup thread and there is a *ton* of discussion on this as well as ample pictures. My best consolidated take on this would be that for training, do whatever you want, drag a kitchen sink behind you if you like. For racing, less is definitely more, but I think the aero-penalty of a single, well placed behind the seat bottle is negligible.
As for tools, I've been running a Dark Speed Works aero bento right behind my stem, also very minimal aero impact.
You'd be way wrong. 10 of the top 15... including the dude who won.
- very controversial studies all over the map as if they are more or less aero than frame mounted bottle cage
-figured out during my rides that i have to seat upright every time i have to reach my behind the seatbottle (thus very not aero). In the contrary, i can stay in the aero position when i reach for my frame monted bottle, take a pull of camories, and put it back.
-My A race was IM Australia, very bumpy roads, and didn't want any bottle launched as i planned on having my own calorie drink and not rely on gatorade
ps: i think your race is next week, would advise not to try anything fancy/new for it, go with what u trained with.
Good luck with your race
Faris has been rocking the mankini + speedo butt rocket for as long as I can remember.
I love his style, but he's a pretty poignant reminder of why we don't always just say "let's do what the Pro's do".
Like many; I use a BTA A2 system upfront...and refill on course using back up cages/bottles in the rear ...I keep tube underseat & use a behind the stem bentobox for small tool(s) and xtra gels/s caps.
I removed my bottle on the downtube...after rendering it somewhat useless by peeing on it.....peeing myself on the bike was ok...drinking from the bottle didn't seem right..
