The Bike is a 2016 Brompton M6R with some aftermarket parts.
Rear View Mirror- Hafny Bar End Mirror. Absolutely essential piece of equipment! The mirror is large enough to see what’s going on behind you. Highly adjustable, easy to install, tightens down with an allen key. Only con I can think of is that it does require you to flip the mirror down if you’re using dropbars. May not be a con for you.
I tried the ones that clip on to your eyewear. Doesn’t work for me. The mirror is too small, and the mirror is to close for my eyes to focus on.
I also tried the Zefal Spy model which is also trash. Make sure the mirror you buy has a large enough mirror and will fit on your bike.
Lights– Rear Rack Light: Busch & Müller Toplight Line Permanent. Excellent. Wide and bright red. Runs (seemingly forever) on one AA Battery. Does not flash. Front light: CatEye Volt 400. Handsome looking, USB rechargeable. Unfortunately, only 4 hours running time on high-mode. Charges very slowly. Low is not sufficient for riding in poorly lit rural roads. High is passable. I would buy something better.
Water Bottle Holder- Monkii Cage. Highly recommended for carrying your water bottle. Great design. Although I didn’t break it, hopefully future designs will be a little more robust. Carrying wide bottles over 1 liter causes the plastic to flex on the bottom.
Pedals- MKS Touring- Lite Ezy. There’s nothing functionally wrong with Brompton’s default pedals, but I swapped them out for a set of these MKS pedals. These quick release pedals are very convenient for packing up the bike so the pedals don’t poke through the box or bag. They grip fairly well without toestraps, but that will depend on your footwear.
Grips– Ergon GP1. Had to be cut down for the brake lever clamps. Or you can try the short models designed for GripShifts – GP 1S.
Rear Rack- Nitto Brompton Rack. Chromoly steel rack. Looks cooler than the stock rack, in my opinion. Not sure if changing from the default aluminum rack is necessary. Nitto rack has a higher weight carrying capacity (and also weighs more).
Drive Train- Shimano Claris compact road double cranks, Claris FD2400 Front Derailleur (matched with a Claris SL-400 shifter). LitePro Braze-on clamp for Dahon. I do not recommend that you install a front derailleur on your Brompton. Ride your other bike instead.
Bags on the Bike:
Saddle Bag – Carradice Camper Longflap. The bag carries a fair amount of stuff with its 23L capacity. The leather straps and buckles get annoying after a while. To complete “the look” you will need a Bagman rack from Carradice. This will cause you to lose the rear half of your seat rails limiting your saddle adjustability. Personally, I do not recommend this bag with my top complaints being: Not storm-proof due to the flap closure system; Leather straps is fiddly and annoying if you access the bag often; No shoulder strap included with an already expensive bag. However, you may love it.
Trunk Bag – Axiom. The model I used has been discontinued, but the same features exist in the newer models: Fold-out side “panniers” comes in very handy, I put my Abus mini U-lock in there. I mainly used the trunk bag for tools and stuff I don’t use much. Handy side velcro straps for your pump. Expandable top, I like this bag a lot. Not waterproof, but includes a rain cover.
Brompton T-Bag & Front Carrier. Great bag. Fits a ton of stuff, but you know all about this bag already. Not much left for me to tell you.
REI Flash 18 strapped onto the Carradice bag.