Inviscid Design Speedfil

If you do triathlons over a sprint or olympic distance, this is the greatest tool other than my Zipps. I love never having to take my hands off the handlebars. Easy to install.

easy to install even without instructions. Length of hose is great, bite valve does exactly what it''s supposed to. Only problem is you need the speedsok cover, the liquid will not stay cool no matter how much ice you put in it. I''ve done quite a few rides with it, not just in the heat of the day, early morning, late evening, it''s hot before the first hour is over.

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The main reason I purchased this was to not have to take my hands off the handlebars and sit up to take a drink. It works great for that. I''m surprised that more people don''t use this type of water bottle. I also didn''t want to have the added water weight on my handlebars with the handlebar designed product.

The only issue is that it is hard to remove the water bottle from the frame. And I''m not sure how many ounces one should consume while riding, but a smaller, thinner design might be nice, but for my training rides, this is the right size.

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I wanted so much for this to fit on my TT bike so that I could get rid of the front bottle. Unfortunately, as a lil peep, the geometry of my bike just would not allow this to fit. I ride a 2008 Quintana Roo Caliente size small.

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This speedfil bottle is easy to install; however, if you place the tube too far down inside the bottle it can become clogged which makes it difficult to suck any fluid from it. Also, over time the pressure needed to pinch the hose with your month or teeth in order to suck some fluid from the bottle becomes labor intensive.