On Sunday more than 5,500 riders will be lining up at the Royal Hospital Chelsea to take part in this year's London Bikeathon - our flagship fundraising event. With a brand new 100 mile route, a live music set from Dodgy and all three routes starting and finishing in the same place for the first time, it promises to be the biggest and the best Bikeathon yet.
Ahead of the big day, here's a spectator guide with tips on the route, where to stand, what's happening at the Royal Hospital Chelsea and the best ways to show your support for your friend and family members taking part:
1. Where to watch the Bikeathon
As the start and finish point for all three routes, we recommend that all spectators come to the Royal Hospital Chelsea to watch the Bikeathon where there'll be refreshments, live music and plenty of action on the big screen playing throughout the day.
However, if you want to get out on the course to cheer on your charges we also have a number of water stations along the routes which provide good alternative vantage points to show your support.
At the Ham House, you'll have the opportunity to catch a glimpse of riders taking part over all three distances. Riders of the 26 mile route are expected between 8.45 am and 12.40 pm with the 52 milers due between 11.25 am and 1.20 pm. The fastest riders on the 100 mile route will pass by Ham House at 08.45 am with the last riders expected through at approximately 10.10 am.
On the 52 mile route there is also a water station at Clapham Common where riders are expected between 10.15 am and 11.45 am. Other places to watch the 52 mile riders include the London Eye, Tower Bridge and St. Pauls. However, if you decide to watch your loved ones here it is unlikely that you'll make it back to the Royal Hospital Chelsea in time to see them finish.
On the 100 mile route there are additional water stations at Leatherhead Road, Windy Gap, The Drift Cricket Club and Hurst Meadow.
2. What's happening at the Royal Hospital Chelsea
For the first time in the history of the Bikeathon, all three routes will start and finish in the grounds of the Royal Hospital Chelsea where we'll have things going on throughout the day.
On the main stage the big screen will be playing videos, displaying good luck messages and providing progress updates and a live leaderboard for the 100 mile riders taking part in the Surrey Hills time trial.
A hog roast and barbeque are on hand to cater for your culinary requirements while Lucozade and water will also be available to quench your thirst.
For cycling enthusiasts there are also a number of display stands with information on all aspects of the sport from nutrition and clothing advice to bike tips and accessories.
3. Ways to show your support
By turning up at to cheer on your friends and family, you'll already be showing your support for the charity. However, if you'd like to support us further there are a number of ways you can get involved:
Send a good luck message
Are you on Twitter and Facebook? Send riders a good luck message on twitter using the hashtag #LDNBikeathon or leave a comment in the comment box of our good luck wall post on Facebook and we'll display it on the big screen at the Royal Hospital Chelsea.
Send us your photos
Whether it's a photo before you set off or from somewhere along the route, we'd love to receive your photos of this year's London Bikeathon. Tweet your photos to our @beatbloodcancer using the hashtag #LDNBikeathon.
Alternatively, you can post your photos on our Facebook wall.
Wear Leukaemia & Lymphoma Research branded clothing
Put on your LLR t-shirts and jumpers, wear your LLR wrist bands, dig out your red and white wigs and help us turn the Royal Hospital Chelsea red and white!
We cannot wait for Sunday and are really looking forward to seeing you all on the day. Together we are Unstoppable!