I've finally saved up and had my Brompton modified to the kind of spec I always wanted. I went to Fudge Cycles in Kensal Rise London Please pm me if you want details of the bike shop or you can Google it). The owner Andrew has a real can-do attitude and is a major UK Dahon dealer who started stocking Bromptons recently. He even has the Go cycle which ones doesn't often see in both its electric and normal forms! After some discussion Andrew was up for the mods and ended up doing a superb job. I guess Andrew can be added along with Steve Parry (UK) and Julianna Neuss (Germany) as serious Brompton modder now! The Alfine works a dream on the Brompton. Details as follows:
1) An 8 speed Shimano Alfine hub. I love the silent and smooth shifting of this hub and it can achieve a very nice range with the right chainset. The range on my Brompton is now 28"-101" which is pretty respectable. Pound for pound the Alfine hub is as good as it gets.
2) A front Son dynamo hub to power the rear light and a new Lumotec IQ Fly Senso front light which has great luminosity and uses an life-long LED emitter rather than a bulb.. I'm really pleased with the power of the Son hub and the Lumotec light has a great beam for a dynamo driven light at night. Both front and rear lights have built in capacitors and standing lights when stationary.
3) Added new Shimano brake levers and Koolstop brake pads.The brakes on the newer Bromptons are better but there was always room for improvement to make them a little more responsive.
4) I intend to add a Titanium seatpost to complement the raw lacquer more but it also has the small bonus of taking around 1kg off the total weight of the bike. The mods added only a marginal amount of weight. My aim was a highly specced Brompton rather than a featherweight one. I'm happy to carry 11-12kg for shot bursts and the bike rolls very nicely on the Eazy wheels anyway!