Entries are open for A Day in Hell, Rapha's tribute ride to Paris-Roubaix.
Established long before the current gravel trend, the ride is a mix of road and off-road secteurs finishing with a live screening of Paris-Roubaix back at Rapha's London HQ.
This year's edition takes place on Sunday 9 April, the same day as Paris-Roubaix. One of cycling's most prestigious races, Paris-Roubaix is nicknamed Hell of the North hence the title of Rapha's tribute ride.
Two routes are on offer, 100km or 140km, with refreshments, coffee and bike wash included in the £25 entry fee.
The route is designed to be rideable on 28c tyres, but wider may be advisable depending on conditions. Rapha point out that the event is not a gravel ride - they coined the term "gravé" to describe the mix of bridleways, farm tracks, cobbles and byways - and more than half the route is on paved roads.
Still, that's not wildly dissimilar to many gravel events and if you have a gravel bike you'll be just fine.
Tickets for A Day in Hell used to disappear in minutes each year so it's something of a surprise to find entries still available. Don't hang about though, we expect places to go fast.
Find out more and enter at events.rapha.cc.
Wondering what to expect? Check out our report from the 2016 edition - on a rim braked road bike. Wild days.
> Muddier, hungrier, loster: Rapha HOTN VII report >