For those of you who don't follow BromptonTalk...
I'd like to tell you that I passed all 4 Brevets this year, and I've
qualiefied for PBP.
The Brevets were of 200, 300, 400, and 600 km.
PBP, if you don't know, is Paris-Brest-Paris, a cycling event of
1,200km that should be covered in less than 90 hours. It will happen
this August in France.
I did the 600km (actually a little less, but more than 560km) in 38
hours total, of which 27 hours were ride time.
A little about my bike:
It started as a S6R.
Major features and modifications:
*) Double chainring (using SP bracket) of 53/33T. The 53T helped me
keep close behind a stronger rider at speeds exceeding 45 km/h in
Max speed downhill was 70 km/h (my max speed record is 79 km/h, with
Schwalbe Marathon tyres as well)
*) Standard Brooks B17 saddle
*) Ergon M2 grips
*) Shimano A520 SPD pedals
*) Schwalbe Marathon tyres (fitted new before the 600km ride)
*) Lights: Battery, Cateye HL-EL320 in front
*) Luggage: Rear rack, with Carradice Super-C rack bag.
No front carrier block and no saddle bag.
I used a bento box for keeping food handy during the ride, and also
my small triangular frame bag with most needed tools
*) Water: 2 1l Zefal Magnum bottles.
One on the handlebar post using a Zefal Gizmo,
and the other on the seatpost using Twofish Quick Cage
My Brompton is my only bike, and I use it for Brevets, weekend rides, commuting, leisure, etc.
The Brompton isn't the weakest link, it's the rider.