Has anyone used a seatpost rack on their Brompton? If so, how do you like it?
I'm planning to do some light touring(2-3 days) on my Brompton, I have the front mounting block and C-Bag. I've checked out the Brompton rear rack and seen the following setup, seems that I can carry A LOT MORE stuff with a rear rack, I especially like it that it can take a regular backpack at the back.
However, I have some reservations about the brompton rack:
it'll add another ~2lbs, and vast majority of the time when I ride, I won't need it
Expensive, ~$170 for parts and $200+ if have it installed by the bike shop
This is purely subjective, but I don't like the look of a rear rack added to the Brompton
Which is why I'm considering a seatpost rack, they seem to be able to take similar weight, they're cheap, and I can take it on/off pretty easily when needed. One drawback I'm aware of is that I won't be able to carry a large backpack to the rack anymore since the rack will be much higher situated than the Brompton OEM one. Maybe a smaller backpack will still fit.
I've looked at this too, if you have the rack too low down your heels will hit your luggage. Higher up and you will significantly increase the stress where the seat post enters the frame. This can lead to seat post, and/or much more expensive frame damage. It also makes folding the bike more inconvenient. I have mounted a handlebar bag mount at the top of my saddle post and limit the weight to around 4kg (including the bar bag) . Even so, it is much harder to raise and lower the saddle with the bar bag on. I only use it on my longest summer tours, but hope to be able to do away with it in the future.
IMHO the main reason to fit a Brompton rack is to reduce the buzz from the back wheel In my experience, it is only useful for carrying a bit of tarp we sit on at lunch and carrying two 1 l cartons of milk at the end of the day. Oh and carrying a rucksack as per the pictures you posted.
I just got the Brompton rack+fender and installed it the other day.
The rack makes the bike noticeably heavier when carrying it around. Not annoyingly so, but you do notice.
The Eazy Wheels are FRIGGING AWESOME when the bike is folded or half-folded, even if you just use them to reposition the bike on the ground. I'm looking forward to using the Brompton in "shopping cart mode".
The rack and fender is a pain in the ass to install, so if the shop offers to do it for you, and you are not wrench-handy, take the offer. My problem was dealing with small parts - I'm used to big parts and clearances on my non-folding bike, and everything in the Brompton is much smaller.
On the other hand, having a rear rack is essential to me. The included elastic cords with hooks are pretty good, and they let me easily secure my backpack - I hang it from the seat stays with a carabiner, and secure it with the Brompton's cords.
The rack puts the rear light in the correct location. Without rack, the light goes by the brake caliper, which doesn't seem right to me.
I do like the multi-storey approach in the photo that fietsbob posted
Thanks for sharing your experience and suggestions!
Hitting the luggage with my heels is something I haven't thought about for seapost rack, good to know...
I've also heard about tricky install for the Brompton rack, I think for now I'm not going to add it and just go with the seatpost rack option like this. Because it's just too expensive of an add-on for not much of a use for me most of the, and the bike weight is pretty much at the top of how heavy I would want to carry for 2-3 stories of subway stairs. Will re-consider having one installed for my next Brompton though
Oh, yes the eazy wheels are great and I frequently use the bike in shopping cart mode during grocery shopping. They should absolutely come standard on every Brompton, there is just no con for them...