Parallels is a global self-supported long-distance riding event taking place over the Northern Hemisphere’s Summer Solstice.

19-20 June 2021


The longest days of the year have always gone hand-in-hand with the longest rides of the year. Once again, we are challenging riders to cycle as far as possible in a 24-hour period over the solstice weekend, riding in parallel with others globally. Distance will be measured in a straight line between riders’ starting and finishing locations. As with any ultra-endurance event, riding is only half the challenge so careful route planning to create the greatest straight-line distance possible will be essential.

While Parallels is primarily a distance challenge, it is also about showcasing your creativity and planning, every line will tell a story. You can submit more than one ride, connecting your lines to tell a bigger story if you’re feeling creative.


Take part in Apidura Parallels







Your ride must take place during an uninterrupted 24-hour period during the weekend of the Northern Hemisphere’s Summer Solstice (0:00 19/06/2021 to 23:59 20/06/2021 in your local time zone). Your time zone remains fixed based on your start location (you can’t gain an hour by crossing a border!).

The distance for your ride will be measured in a straight line from the start point to the end of the ride. If you ride 300 kilometres, but your finishing point is 200 kilometres from your start point ‘as the crow flies’, your ride will be listed as being 200 kilometres for the purpose of this challenge. By submitting multiple rides, you can connect your lines on the map to tell a bigger story, but the distances will be individual and cannot be added together to create a total distance.

Your ride must be self-supported, with no pre-arranged support, supply drops or friends and family meeting you on your route. Much like in other ultra-distance events, we won’t be able to tell if you’ve dodged this rule… but you’ll know and trust us, it won’t feel good!

The clock starts with the first turn of your cranks and runs continuously for 24 hours. While you can (and should!) stop to rest, eat, and sleep as often as you want, the clock doesn’t stop. The challenge is based on elapsed time, not moving time.




To enter, you need to join the Ride With GPS challenge:

Enter using the link: Parallels 2021

Tag your ride on Ride with GPS by adding #parallels24 to the ride name or description.

All rides and results will be found on Rides will be added ‘realtime’ as they are submitted.

The ‘Parallels’ lines and results will be published by Monday 28th June 2021.

How do I use Ride With GPS Challenges Feature?

Still have questions?

See our FAQs.


hand using garmin device for bikepacking route planning






Government Restrictions and advice on travel vary around the world. Please take any local laws and advice into consideration when planning your route and during the ride itself. There are more important things in life than bike riding, so keep yourself and others safe by planning appropriately. If now is not a suitable time for a long bike ride in your region, start planning for 2022 and take advantage of the extra time to perfect your route.




Familiarise yourself with all the local riding laws along your route. Alongside temporary COVID-related rules, please ensure you obey all laws concerning rights of way for bicycles, visibility and places you are allowed to rest.



Apidura Parallels is a personal challenge, shared with others and a great chance to safely experience what 24 hours during an ultra race or challenge feels like without having to wake up and do it all over again the following day. It’s not important enough to risk your life over! If you are tired, stop. If it’s overcast or dark, light yourself and your bike up. If your route turns out not to be safe or sensible for cycling, turn around.




Apidura Parallels is intended as a personal challenge and is by definition an unsupported event. Responsibility for the welfare of you and others is your own, please act responsibly and stay safe.


solo bikepacking rider on mountain road




Why are you doing this at such a difficult time?

Parallels is an annual challenge. While primarily a long distance cycling challenge, it is also a challenge of riders’ creativity and route planning skills – if riders can’t go for a long rides in there location this year, we hope they can enjoy showing their creativity with shorter routes or take the extra time to plan the perfect route for the future.


Can I drop supplies for myself on my planned route?

This challenge is about the spirit of bikepacking and self-supported racing, but is not policed and we would encourage you to do whatever you think is sensible to stay safe and enjoy the challenge. It’s down to you to choose how to safely resupply and whether that fits with the ethos of the challenge.


What if I plan to ride a loop?

Your parallels distance is measured from the start to finish of your uploaded ride. If you are planning to ride a loop or there-and-back, make sure you split your ride, ending your first recording at the point furthest from your start. You can upload as many rides as you wish during your chosen 24 hour period.

Local rules mean I can’t ride as far as I want. Can you measure in another way?

We are measuring straight line distance because it creates an interesting route building challenge which to us, is integral to ultra-distance cycling. Every line will tell an interesting story, so whilst a distance event, the most interesting rides won’t necessarily be the longest lines.


Parallels is our way of encouraging people to get outside for the longest ride they can, while being responsible, knowing that others around the world are doing the same. Your longest ride this year might not be the same as your longest ride next year, but it’ll tell an interesting story and we can’t wait to see it and share it with the world.


Can I do more than one ride?

Yes! You can do as many rides in the 24 hour period as you wish, but the lines for each ride will appear separately. If you can’t go far, get creative!


Share your experience and see other riders’ progress by following #parallels24

Parallels is made possible by:


Ride with GPS logo