Helsport Gravel SL 4L Halfbag

Helsport Gravel SL 4L Halfbag

Waterproof bicycle frame bag for bikepacking with velcro fastenings. 4 Liters.

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The opinion of Aventure Nordique

The Gravel SL 4L Halfbag from Norwegian brand Heslport is a half frame bag that doesn't cover the whole frame triangle, just the top.

Made from 420-denier nylon with a TPU coating inside and out, it's completely waterproof. The seams have been welded together to guarantee protection even in the harshest weather conditions. The two YKK Aquaguard zippers also guarantee resistance to a water column of 8000 mm. It's also easy to wash.

The Gravel SL 4L Halfbag attaches easily to your bike's frame thanks to a set of 6 velcro fasteners, including 3 on the top tube. A stiffener on the inside ensures a better fit. The pannier has several slots for other attachment points, depending on the geometry of your frame, on the stem or the other two frame tubes. Your pannier won't budge!

Two side zippers provide access to two pockets. The main one is equipped with three small compartments where you can slip thin objects (phone, bank card, papers...), while the second pocket has no depth, but can still store equipment such as a first-aid kit or a few tools.

Points to remember

With its 4-liter volume, the Gravel SL 4L Halfbag from Norwegian brand Heslport lets you keep all the gear you need for your trip close at hand (and dry!). Its 2 pockets and 3 internal compartments make it easy to organize. All you have to do is choose your destination!

Technical details

Manufacturer Helsport
Product name Gravel SL 4L Halfbag
Volume 4 l
Model Unisex
  • 420 denier nylon with double-sided TPU coating - 8000 mm water column
  • YKK Aquaguard zipper
Dimensions 45 L x 15 (10) H x 6 W cm
Weight 230 g
Additional information
  • Additional mounting slots and Velcro to secure the pannier to the shape of your frame,
  • Also suitable for carbon frames,
  • Fits most semi-rigid frames size M and up. We also tested this bag with size S frames and it worked well. It can be difficult to use the bottle cage with the Halfbag. It has several attachment positions.
Warranty 5 years
Country of Manufacture China


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