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This is the Bontrager Speed Concept Speed Box II, and it's a game-changer for anyone with a Speed Concept bike.

It's a sleek storage box that fits right on the top tube, giving you a perfect spot to stash all your ride essentials—think energy gels, a spare tube, your phone, or keys.

It's brand new with tags, so it's in perfect condition.

It weighs next to nothing (about 1lb) so it won't slow you down.
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The MPN is 5252744 and the UPC is 617395138708.
If you're into triathlons or time trials, you know how hard it is to carry stuff without a jersey.

This little box solves that problem completely and looks good doing it.

A must-have accessory for the Bontrager Speed Concept.

4.3 out of 5