This weekend sees the British capital give itself over to bikes for the Prudential RideLondon events. The 100-mile ride from East London to Surrey and back to The Mall will be the biggest closed-road sportive ever organised in the UK, and for many people it'll be the first 100-miler they've done. Here's the chaps at Global Cycling Network with some useful tips for preparing so you finish the ride and have fun.
Got your own tips for 100-mile fun, or even just survival? Of course you have! Share them in the comments please.
Our official grumpy Northerner, John has been riding bikes for over 30 years since discovering as an uncoordinated teen that a sport could be fun if it didn't require you to catch a ball or get in the way of a hulking prop forward.
Road touring was followed by mountain biking and a career racing in the mud that was as brief as it was unsuccessful.
Somewhere along the line came the discovery that he could string a few words together, followed by the even more remarkable discovery that people were mug enough to pay for this rather than expecting him to do an honest day's work. He's pretty certain he's worked for even more bike publications than Mat Brett.
The inevitable 30-something MAMIL transition saw him shift to skinny tyres and these days he lives in Cambridge where the lack of hills is more than made up for by the headwinds.