The Serfas SB-2 Large Stem Bag is great for putting all your nutrition and accessories right in front of you. The Serfas SB-1 Small Stem Bag straps to your stem and top tube so that everything you is less of a reach. The Serfas SB-2 Large Stem Bag is great for tri bikes and road bikes, perfect for stoing nutrition.
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Tri Gear Store > Bike > Accessories