Profile Designs FC35 Hydration System, 35oz

My only complaints are the price ($100+ for a fancy water bottle?!?!) and the design of the red rubber retaining strap. It’s really difficult to install that red strap because of where it’s located under the aero bars by the stem and because it has to be threaded through itself.Despite those issues, the bottle works great. Plenty of volume for lots of water for long rides. Water doesn’t splash out through the top rubber gasket, even on bumps. I like that it has a mounting spot for bike computers/cell phones and a clip for the bite valve tube. It came with everything necessary to install it—plastic hinged mounting brackets (which are sturdy and can accommodate a range of aerobar spacing), straw, bite valve, and hardware. Installation takes 5 minutes maybe (not counting that stupid red strap...lol) Good bottle, pretty happy with it.

The initial use was an epic fail, due to operator error. The silicon cap which holds all the fluid in popped out on my very first ride twice. I ordered 3 sets of tops from the company and two extra rubber bands to secure the unit. The vendor was very responsive.August 09 Amended,Added one star, the caps coming off were my fault not the product. Used the product successfully on a ride. Have the same comments as other reviewers, and the straw could be about 3 inches longer and the draw was difficult. Will expand the size of the aperture on the mouthpiece to increase flow.Refill goes well. All in all decent product.In hindsight strongly suggest a "dry run" with the product in your kitchen to get everything right prior to testing on your first ride.

Expensive but have used on 2 sprint, 2 Olympic, and 2 70.3 triathlons without any problems. Nice safety feature because I can keep my hands on the bars and my eyes on the road instead of reaching for bottles. Can take frequent 2 ounce sips instead of feeling like I need to gulp down 6-8 ounces at a time using a traditional bottle. Recommend taking off bite valve; makes it easier to get fluids. Super easy clean clean up and putting parts back together. Sturdy bracket and bottle snaps into bracket and is secure, but easy to remove. Easy to refill with traditional bottle while riding; for races only I do secure the refill valve casing to the white bottle portion using electrical tape just in case but even in training rides it has never snapped off while refilling. Some reviews state to secure straw, but it has not been a problem. Use black "basket" as a trash basket for used gel packs. Holds 35 ounces and does not splash. Highly recommend it

I was able to install this bottle easily enough, however my bars are too narrow so the bottle slants on an angle, I was pleasantly surprised that when using the bottle, there was no leaking. I have an issue with the black rubber ring that goes around the straw, it falls into the bottle which is a huge issue as everything leaks if the ring falls into the bottle. I cannot find a replacement for that item and for the price of the bottle I would expect the measurements for the rubber ring would have been designed well enough for this to not happen.

I love the design and being able to have my watch right in front of me when riding. The quality is good and the straw can be adjusted to where you need it. I love being able to stay in aero and drink and it makes me do a much better job of hydrating. The negatives would be the slot to put a GU or food in is to large and my stuff bounces out so needs a top or something on it. Still working on this ? It’s also hard to strap on to the bracket with the red rubber band. Not sure how long it will last.

For my Cervelo P3 this wasn't a great fit for me. To top it off the straw wasn't easy to use and the overall system made way too much noise while biking around town

Just upgrade the hose to CamelBak or something that won't pinch so much when it bends. Best filler valve--BUT Make small holes and zip-tie the flexible black valve halves onto something so they don't fall in. Really a pain to extract on the road without a coat hanger wire. (You can thank me later).Would buy another one. Sturdy and no plastic chemical smell like cheaper ones so I'll be generous here with 5 stars.

I used the older version of this system before they came up with the clamp system. The older model used Velcro strips as part of the clamping mechanism but the adjustability made it ideal for my aero bars on my Specialized Shiv because of the bar flaring right around the arm rest. With the newer model, I cannot install it with the broader portion facing forward; consequently, I had to turn it around to mount it on the bars. Also, the red band is better than the old Velcro strap but it has its own problems in getting the bottle on and off. If it is set up in the standard configuration, you have a hard time getting the strap undone and wind up wind up having to undo the clamps and remove the entire system. I'm left with the impression this was designed by engineers who didn't bother taking any constructive input from the consumers. Had I know of these deficiencies I would never have bought this item.