When the team at GRVL dropped the NYCHTHEMERON Challenge, they designed a masterclass in self-supported endurance riding.
Named after the ancient Greek word for a full 24-hour cycle of day and night, it’s a route built to test your grit against the elements. While the full-scale version is a true day-and-night epic, my friends and I set out to tackle the condensed twelve-hour loop. Living and riding in Norfolk, I know all too well that the county's pancake-flat reputation is a bit of a myth once you get off the beaten track. It was this twelve-hour loop that my friends and I set out to tackle, fully aware that even our familiar local trails have a knack for keeping you honest.
Our adventure began with a sharp five-thirty morning rollout. There is nothing quite like the crisp air of dawn on Marriott's Way to get the legs spinning and find a smooth, early rhythm. The peace didn't last long, though, because we violated the golden rule of gravel riding: never boast about your puncture luck.
Nick confidently announced to the group that his tyres had been completely bulletproof. Naturally, the gravel gods took that as an immediate challenge. Within minutes, a sharp piece of flint tore through his tread, sending tubeless sealant spraying everywhere in a spectacular, unsealable mess. While we were dealing with the initial disaster, a local farmer pulled up in his tractor. We optimistically thought he might be offering some roadside assistance, but instead, he swiftly informed us we had drifted onto the edge of his private land. We apologised, hurried the repair along, and decided to throw in a tube. Standing there holding a traditional inner tube, it was hard not to appreciate the simplicity of old-school tech when modern setups go wrong. But any lighthearted debate was cut short because the gravel gods weren’t done with Nick yet. After finally setting off, he managed to get a massive sidewall split exactly five pedal strokes later.
With the mechanical chaos eventually sorted, the route opened up into the absolute best of the Norfolk backcountry. The scenery was stunning, but the absolute highlight was a rogue pig that escaped its enclosure and decided to join our paceline on the tarmac for a brief, hilarious sprint. It was completely unexpected, brilliant, and entirely normal for Norfolk.
As the sun got higher, the heat started to bite. This is where GRVL’s product design truly shone, as the GRVL Hydration Pack completely saved the day. On a long, remote loop with a scarce first half for resupply, traditional frame bottles just don't cut it. The pack allowed us to carry plenty of fluids through the dry sectors, and more importantly, it spared us from that classic gravel experience of sucking down a mouthful of dry trail dust every time we took a sip.
It wasn’t just the pack keeping me comfortable in the midday sun, either. I was lucky enough to get my hands on the official NYCHTHEMERON Jersey ahead of the ride. I'll admit, seeing that it was black made me a bit nervous for a hot day out, but the fabric is exceptionally lightweight, and the white back print meant it didn't soak up the heat at all. It stayed super comfortable for the entire twelve hours, and felt impressively aero on those rare, fast downhill sections. The best part? You can actually grab yours at a discount once you complete the challenge yourself.
For sustenance, the route guides you past some incredible hidden gems. Our first oasis was The Old Store in Fring for a quick caffeine hit and a phenomenal granola yoghurt bowl that completely revived our spirits. Later on, we hit the coast at Sheringham with grand visions of a seaside fish and chip feast. The universe had other plans, however, as the shop was cash-only. In a brilliant twist of modern irony, they still had their massive, imposing COVID-era plexiglass screens fully intact, yet were perfectly happy to handle germ-ridden paper banknotes. We had to laugh as we scraped together our loose change just to secure a basic portion of chips.What makes GRVL's route curation so impressive is how seamlessly it strings together the landscape. One minute you are navigating rugged backcountry sectors, and the next you are rolling right past the majestic boundaries of Holkham Hall and the sweeping estate tracks of Blickling Hall. It gives the ride an incredible sense of scale and connects the coastal holiday hotspots beautifully.
And despite what the guidebooks say about Norfolk being flat, GRVL managed to sniff out some surprisingly cheeky, punchy little climbs on the return leg that definitely kept us honest. It is a phenomenal, diverse loop with a brilliant mix of surfaces and excellent refuelling options once you hit the coast, including The Glaven Bistro in Glanford, which the route rolls directly past.
If you are looking for your next great cycling challenge, the team at GRVL has absolutely smashed it out of the park with this one.
I highly recommend exploring the full NYCHTHEMERON Challenge and discovering the incredible self-supported routes all over the UK.
James
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