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Théorème GR - Tested during a bikepacking trip in Northern Ireland by Weelz media!

10/10/2025
So it was off to Northern Ireland for a few days of gravel cycling and bikepacking for Weelz. the aim of their trip was to test the new Théorème GR Ultra from Origine Cycles over the rough roads and trails found in Ulster. From Newry to Portrush via Belfast, the Mountains of Mourne and the Antrim glens for 260 km of riding and 3600 m of climbing.