It's the "new booster rocket seat pack" that Scott adjusted for the Thudbuster. Check out this page: http://www.flickr.com/photos/60767053@N07/6258050789/#in/set-72157627564429564/
It's actually a detail picture of the bag Scott made for me before he sent the kit out.

But shoot Scott an email and he'll help you figure out exactly what works best for your needs. I wanted a bag that would be able to hold a good 12 liters of stuff. In the bag on my bike in the above pic, I have a sleeping bag, down sweater, a long sleeve layer, arm and leg warmers. Amazing. What else I really like about the bag is the bungee on the bottom for a pair of Native shoes (super light camp shoes) or flip flops or whatever.

Let me know if you want any more details or pics.

I just received a full kit from Scott. These bags are awesome. Excellent attention to detail, constructed of the exact same materials as Revelate and Carousel. Awesome to work with. We talked A LOT regarding small design elements that I was interested in. Scott replied to every email within a day. Worked with me to get me exactly what I wanted and from the time I put my order in until I received my kit it was perhaps a little over a month (and that was stretched because he had to move in the middle of that period -- even then he responded to questions post haste). Scott is an awesome guy who has ridden many self-supported tours so he understands the needs of the bikepacker intimately. There's nothing bad I can say about his work, in fact, I want to make clear that all I can say is how awesome they are.

mountaingear.com currently is running a sale on lots of their down jackets. some pretty good deals actually. worth looking into.

A few years ago I bought a food dehydrator. And let me tell you, total game changer. I live in Los Angeles and luckily have lots of awesome Mexican supermarkets around that sell killer seasoned/marinated carne and pollo asada. A few pounds in the dehydrator for about eight hours, no need to add anything else, and you got ample super-light, incredibly tasty, high protein fuel. I love chomping on a handful of dried almonds and homemade beef jerky, an instant shot of super power for me. NB: unrefrigerated homemade jerky can go bad in about 2 weeks, particularly in the desert (I'm thinking about long climbing/camping trips in Joshua Tree, Red Rocks, etc.)

Also if you're taking some pasta or couscous or quinoa throw the dried meat in with the water, the seasoning from the asada marinate adds flavor in a pretty awesome way as the meat is rehydrating. [I'm a big fan of couscous and quinoa, both excellent, super light, readily seasoned. In fact quinoa's "protein content is very high (12%–18%). Unlike wheat or rice (which are low in lysine), and like oats, quinoa contains a balanced set of essential amino acids for humans, making it a complete protein source, unusual among plant foods. It is a good source of dietary fiber and phosphorus and is high in magnesium and iron. Quinoa is gluten-free and considered easy to digest." (wikipedia)]

If you're looking for pasta sauce without the hassle of jars, containers, etc., you can dry it in the dehydrator into a sort of fruit leather that readily rehydrates in water. All of this can be done in a single cup (I use the Snow Peak giga power stove – 3.6 oz; titanium cup/lid – 4.4oz; fuel – 6.4oz.; light my fire spork - .2oz.; mesh bag for all of it - .1oz; altogether my kitchen weighs under 15oz and fits inside of the cup, and a single small giga power is ample fuel for several days in the back country for me. I’m sure I’ll eventually move on to an alcohol stove, but eventually is eventually.)

the nanopuff is awesome. I just saw this sale (http://www.theclymb.com/brand-event/480/Mountain-Hardwear-Men-s---Boy-s) on mountain hardware down and synthetic jacket you might want to check out. I climbed mt whitney with one of their synthetic puffies and loved it. super light, surprisingly compressible, and quite comfortable.

I've been wearing the patagonia down sweater for years now through many sub-freezing joshua tree winters. They've put out a down hoody and it's pretty awesome. It's a slim fit and incredibly compressible. You can stuff it into it's own pocket and have a killer down pillow. There are actually two models of the hoody, a regular one (15.2 oz) and an ultralight version (9.3 oz). Combined with some sort of rain proof shell and a decent base layer, you're pretty much set. I've been eyeing these myself lately and found a few left overs from last years stock on sale on various websites, saving about a $100, but you it's orange colored (still can't figure out why they make these awful lime green and clementine orange colored clothes that are always left over at the end of the season). It's not a cheap option, but it's a incredibly warm, compressible, and a surprisingly durable piece of gear. I've down a lot scrambling around the rocks and even some climbing with just my down sweater and a cotton tee shirt at nights in jtree -- always felt great and not the slightest damage to the jacket. (full disclosure: I'm a native southern californian, i.e. a total marshmallow when it comes to the cold.)

I'm a Southern Californian native so needless to say I'm a bit of marshmallow when it comes to cold. For years I've used a Marmot Sawtooth 15 degree down bag through many winters of camping in Joshua Tree for the climbing season when it dips well below freezing every night. Rarely too cold and on those nights I threw on my down sweater and was fine. The Sawtooth I have is a few years old and has a 600 fill and weighs about 3.5 lbs. It's a great bag for the money.

However I just bought the new Marmot Plasma, 900 fill down, and must say it's pretty much the greatest bag I've ever used. The Plasma weighs just under 2 lbs, together with my Pacific Outdoors Peak AC sleeping pad, I can very easily get my sleeping set up stuffed down to a bundle about 7" wide with a 6" diameter -- and this is with very little forcing. My tent is pretty small too, a Big Agnes Seedhouse 1, also under 2 lbs, and extremely easy to pack down about 8" long, 5" diameter. I'm trying to balance ultra light and somewhat comfortable, also I'm not cool with critters and I've heard too many horror stories about snakes in sleeping bags to even consider a tarp tent or bivy or whatever. Admittedly I'm a bit of a nut when it comes to gear and really like going light as I often carry lots of heavy climbing gear. This is probably one of the lightest, warmest, and smallest sleeping set ups, but it's a bit expensive and not particularly necessary. But it's pretty awesome. 

got to second the porcelain rocket. scott is an awesome guy. spent several hours on the phone with me discussing my needs and patiently answered all of my questions. his turn around time is spectacular compared to the other guys and he does things they don't. his handlebar harness actually is sort of roll out that seals with an exterior pouch. he uses the exact same materials as revelate and carousel. good work from a good man who knows from his own experiences on the great divide and azt etc what riders want and need.

Hi Jacques

I just came across this webpage myself and was about to post the same question. I haven't done any of it. But would be interested in exploring all of it. THe website says there's only 20% left to go.

Curious if anybody has any new information since Jacques original post a couple years ago.

Jacques, you interested in maybe tackling it sometime soon?

Hello Everybody

My name is Ali, go by the handle alirawk here. Born in 1975. Just had my birthday two days ago, in fact. Bought a Salsa Fargo this year as a present to myself. Really new to the mountain biking world and bike-packing, but been riding two wheels for some three decades. Spent a few years on the motorized variety, but prefer my own human powered ones more.

Lifelong Los Angeles resident until a few years ago when I moved down to Irvine to do my PhD in Comparative Literature.

Grew up surfing, but had shoulder surgery a few years ago and just can't paddle for a damn anymore. Somehow though I can rock climb still, which is actually what I do as much as I can (or rather did till I got my Fargo). As a climber, I've well honed my addiction to gear. Apparently this sport allows me to further harness that inclination.

One of my favorite things about climbing is the awesomely supportive community invested in it. Already, the little bit of exposure I've had to the likes of people riding bikes through mountains has allowed me to enjoy a similar familiarity, certainly the wealth of information contained and knowledge freely shared on this site are terrific testaments to that. Scott thank you so much for setting up this site, and thanks to all who have participated to make it so useful and interesting.

I'm stoked to be able to explore new terrain. Likely with a pair of climbing shoes and some chalk tucked inside the pack somewhere just in case I come across that perfect virgin splitter in the middle of nowhere.