This the main one.

Self Reliance

You should not expect any outside help to get round the course. That means things like being able to repair your bike, your self, and generally be self sufficient. You should not rely on other riders or the general public to get you out of any situation you find yourself in.

Equal Opportunity

You should not rely on outside help that is not available equally to all riders (see No third party support, resupply or lodgings below). Equal opportunity also goes for things like obeying traffic laws and stopping at red lights.

The "spirit of.."

Whilst you should not solicit help from others (riders or the general public), you can accept help if required when offered. This covers helping someone repair their bike or them selves through to buying them a Coke or watching their bike whilst they are in a shop. None of this should be expected though. Do not begrudge a fellow rider who rides on by without offering help since they are not obliged to do so.

Accidents and emergencies

If you come across a fellow rider in real need of your help due to injury, you are obliged to stop and help (as we are sure you would anyway).

The route will be available to download as a GPX file. You should endeavour to ride (or push!) along the route as closely as possible.

If you need to leave the route for any reason (food, shelter, bike repair etc.) you must rejoin it where you left.

Whilst every attempt will be made to ensure the route is passable, there may be diversions that need to be taken due to downed trees or other diversions. Please inform event control and take photographic evidence where possible. Last minute route changes before and during the event will be broadcast on the event WhatsApp group.

This means that you must source all the things you might need along the route by yourself from sources available to all riders.

Shops, restaurants, cafes, bars, hotels, campsites are fine to use.

Staying with friends, at your own house, or arranging to meet someone to stock up on jelly babies at 1am is not fine (unless they're advertising their services to all riders!)

Whilst we will be supplying GPS trackers for each rider, we also ask that you maintain evidence of your ride via your own GPS tracking (e.g. a Garmin, Wahoo, Strava phone type device). In the event that your tracker malfunctions, we'll use your GPS log to verify your ride.

This means stopping at traffic lights. Using front and rear lights & wearing a hi-viz jacket or similar at night. It is illegal to wear headphones whilst riding on French roads. There are obviously a lot more rules than these listed, you should know them and obey them.

• Entries are open until September 1, 2025 or when it fills up (100 spots max)

Thursday September 18th 2025

• Tracker retrieval and equipment check from 6pm-10pm
• Rider briefing will take place at 8pm.
• Food and drink will be being served by The Woodyard between 6 and 10pm if you're hungry / fancy a beer.
• NOTE: If you can't make it to the briefing or the tracker retrieval, there may be an opportunity to do this on Friday morning before the start. You must inform us that you intend to do this before Thursday 19th otherwise we will assume you are not coming.

Friday September 19th 2025

• 08:00 - mass start. Please be ready to at the start line at least 15 minutes before then.
• The clock will start ticking at 8am whether you start then or not.

Saturday September 20th 2025

• We expect the first finishers to arrive during the afternoon and evening.

Sunday September 21st 2025

• We will be hanging out at the pub until the 10pm cut off. There will be a beer (or soft drink) and meal available for each participant, maybe even prizes and all that other good stuff.

Entries will be available from November 1.

No, sorry. We will be using a tracking system that's all set up and much simpler for us to manage using just their own trackers.

You will be expected to carry the following mandatory equipment with you throughout the event.

• Front & Rear Lights
• Helmet
• Basic first aid kit - this includes bandages, antiseptic/sterile wipes, medication
• Down jacket or synthetic equivalent. Something warm if you get stuck in cold/wet weather
• Waterproof jacket: for obvious reasons.
• Shelter: You must be prepared to spend a night out in the conditions of the day, even if you plan to use a hotel or two — things don't always go to plan.
• Survival blanket: they’re super light and could prove invaluable in an emergency.
• Gloves: These are to protect you from the weather rather than cycling specific. They should be warm and at least water resistant.

Entries will be allocated on a first-come, first-served basis.

You are the best judge as to whether or not you are qualified to ride this event, not us. You will be asked to sign a Rider Agreement stating that you have read this website and understand the seriousness of the undertaking.

We must however fulfil our obligations by requiring every rider to have a signed doctors note certifying that you are fit to ride. It should mention "Le Chablais 300" by name.

You must also be 18 years old or over on September 19th 2025.

Given the saw-tooth profile of the route, the organisers don't believe that there will be much benefit to drafting, so therefore we don't think a "no drafting" rule is required.

Yes! This is a social event, not a race. As such, you are allowed to ride in pairs, in groups or solo. There are no categories. You may share equipment (e.g. a Tent or stove) so long as everyone has at least the mandatory equipment with them should you become separated (e.g. first aid kit, emergency bivy).

To keep things simple, only solo entries are accepted, though you may ride together as a pair as there are no restrictions on riding with others (see above).

Yes! We will be using a tracking service that will allow us, you, your friends and family to see where you and the other riders are on the course. The website to view will be shared here on the website before the start.

The time limit is really about the time that any event organisers will be around at the finish or to actively support you via the WhatsApp group. You will also miss the pub closing time for the finisher meal and drink.

If you finish outside of that time, you will still get your finisher time published on the website.

We will start and finish at The Woodyard, a brewery pub run by Ibex in Montriond. There is parking available near by and plenty of hotels and apartments in the area.

Yes! Though we are not sure how practical it will be in reality. An e-bike can be used so long as you stick to the rules around self sufficiency and equal opportunity. You'll probably need to carry your charger and a spare battery (no pre arranged swapping of batteries or chargers allowed). The published finisher list will show you in a separate e-bike category.

Feel free to bring whatever bike you like, but if you value your wrists, your tires, your wheels, your knees and your sanity, bring a mountain bike. A full suspension bike will make it more fun.

I own a gravel bike, a hardtail and a full sus trail bike.. I'll be riding the trail bike with some fast rolling tires & inserts. Just so you know.

We can accept up to a maximum of 100 participants.

The entry fee is €90

This will include tracker hire and a free finishers pint (or soft drink) and meal.

The entrance fee will be used to cover the our costs only (tracker hire, insurance, website, food, payment fees etc.). Any surplus money will be donated to the local charity association Montagne Verte. We are not doing this for profit.

You will be more than welcome to ride an additional loop to make it up to 300 when you arrive at the finish if you like, we don't expect many takers ;-)

Me! I'm Guy Bowden, I've been living and riding in the area for the past 18 years. I used to run guided mountain bike holidays here and owned the local bike shop (toricomorzine.com) in the past. I've raced and enjoyed a few ultra's in the past few years and decided that instead of waiting for someone else to organise one around here, I'd give it a go myself (how hard can it be?!).

You should know that I am a mountain biker first and foremost and that I don't mind a bit of hike-a-bike so long as the descent the other side is worth it. The route reflects this and you will most probably be cursing me at one or two points. Hopefully by the time you finish, the fun bits will have erased the pain. I also plan to be riding the event myself.

It is true: The event will take place during hunting season and the route will cross designated hunting zones (pretty much everywhere is a designated hunting zone, there is no alternative aside from sit inside). However, hunters are obliged to share trails with the public and make themselves known.

We will write to each hunting organisation that the route goes near to alert them of the event and the route. They will not be obliged to not hunt, in the same way that we are not be obliged to avoid the hunting zones. If they know that there are riders passing through, then they will likely avoid the area since the animals they are hunting are unlikely to want to hang around with a bunch of mountain bikers either.

We feel that it is important to strongly recommend that riders wear bright clothing, especially at dawn and dusk. Making noise would also be useful to alert others of your presence. This will be especially important when waking from that secluded woodland bivy spot you found.

Please feel free to email us at chablais300@gmail.com or DM us on Instagram.