Zipp Speed Box for Tri and Sportive riders
The Zipp Speed Box offers the convenience of the classic top tube box
with a few new features to make it more user-friendly.
•The Speed Box measure 5-1/4" x 3" x 2
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Great item. Easy to fit and really handy for 12hr tt. Managed to fit 7 cnp energy bars in it. But you could fit a fair few gels instead if that's your thing. Also got a handy zip pocket for money or phone or other valuables. Easy to open zip aswell. No problems.
Good zip closure - far better than some other brands which have flopping about Velcro closure.
1. Velcro a bit short in length to go around headstock/stem and might be too short for some.
2. A little small in the lengthways and 60g gels (Hi 5) have to be bent to fit which isn't great as they then take up more room.
Make it 25mm longer and it would be 5 stars