Rock The Bike

Should I buy a Xtracycle SUB or a Mundo Utility Bicycle?

One of the key questions to ask yourself about purchasing a long-wheelbase bike is whether you need a true cargo bike, or whether you’re in need of a solution for bike commuting, or something in between. You probably have certain images in mind of what you’re going to do with your long-wheelbase bike. If your image is of you carrying a laptop and lunch to work, then a cargo bike is overkill for your needs. You probably need a regular city bike with a rack and panniers.

If you imagine yourself dropping off two kids at school, then a long-wheelbase bicycle is a must. Both the Xtracycle and Mundo are good options at this point. Cost may be the deciding factor.  The Mundo is a cheaper solution if you are starting from scratch. The Xtracycle FreeRadical is less expensive if you already have a mountain bike or city bike you are willing to convert.

If you picture yourself regularly carrying 50-150+ pound dead loads like lumber, canned food, water, bricks, and heavy tools, you’ll benefit from the Mundo’s stiff cargo racks. Carrying heavy loads is more predictable causes less frame flex with the Mundo. Its rear wheel is incredibly strong, which also contributes to a predictable, safe ride when carrying heavy loads.

Carrying Audio Gear on a MundoCarrying Audio Gear on a Mundo

If you’re the type of person who enjoys developing your own system for carrying things, you’ll like the bare-bones load platform of the Mundo. It’s easy to customize to your unique needs. If on the other hand you’re the type of person who is easily frustrated by having to tie loads down with straps or bungees, you’ll probably prefer the Xtracycle carrying system — it comes ready to use with sling-like bags and integrated tension straps. The Xtracycle FreeRadical can’t carry as much dead weight as the Mundo, but if you are unlikely to carry 100 pound loads, you may never need the extra load-capacity of the Mundo.

Note that carrying people is always easier than carrying dead weight loads like water jugs. This is because people respond to the turns and road conditions. They can ‘post’, standing up a bit on bumpy terrain. Carrying a 150 pound person on an Xtracycle is a lot easier than 150 pounds of dead load. Frame flex is less of an issue when carrying people also. Carrying people who weigh closer to 200 pounds does begin to get sloppy on an Xtracycle. However, it should be noted that only the strongest riders can carry 200 pounds on a bicycle on anything but flat terrain.

Speaking of pedaling difficulty, if you live in a hilly area, the weight of your bike will be more of a factor than in flat terrain. An Xtracycle FreeRadical installed on an aluminum or lightweight steel mountain bike will be noticeably lighter than a Mundo Utility Bike. You’ll notice this weight savings when accelerating from a red light and climbing hills. The extra weight of the Mundo helps make it stiffer when carrying the heaviest loads, but if you’re only going to carry 30-75 pound loads, and the occasional passenger, you might be happier with a lighter long-wheelbase bike.

Watch this space as we continue to help customers understand which utility bike is best for them. It’s not a one-size-fits-all answer.

Here are some of the many considerations:

  • The loads you’ll be carrying
  • What type of use? Daily commuting? Distance touring? Deliveries? Family and friend transport?
  • Cost
  • Weight
  • Simplicity
  • Issues of city use: theft, leaving the bike outside
  • Parts quality
  • Bicycle fit
  • Color

Light v. Stiff

The Mundo is stiffer for two reasons:

1. It’s got a straight-gauge, seriously trussed out steel frame front to back. Look how the massive top tube leads straight into the beefy seat stays, which then go all the way to the rear of the Side Loaders.

2. The load-carrying system is a simple steel chassis.

The Xtracycle is lighter for two reasons:

1. The FreeRadical frame is thin-wall cromoly, and you’re likely to be putting it on a thin-wall cromoly or aluminum mountain bike.

2. The Xtracycle load-carrying system is composed of a variety of lightweight materials: Nylon fabric panels, Aluminum tubing, plastic buckles.

Do I need legendary stiffness?

Do I need speed?

Chassis v. Snowshoe

Lighter Mundo

The creators of the Mundo have made the current model 13 pounds lighter. The new model is noticeably sportier on hills, and easier to carry down a flight of stairs.

The weight savings is related to the narrower gauge tubing in the Mundo’s carrier. The carrier also has fewer tubes.

All Mundos sold by Rock The Bike as of June 2009 have this improvement.

If there’s something you find reassuring about having a taillight this powerful, this large, on your long bike or commuter bike, trust your instincts. Get the Down Low Glow.

Down Low Glow as a rear taillight.
Down Low Glow as a rear taillight.
Photo: Rob Arnaud

For years we’ve been selling the Down Low Glow as a Side Visibilty and Ground Effects light for bicycles. Some of our customers have been trying it out as rear light, and I finally set it up that way for myself. The results are in. Never has it been this much fun to take the lane. Read More

Correct assembly of Mundo’s chain guard

The Mundo’s chain guard mounts to a steel bracket that is between the drive-side crank and the bottom bracket. To keep the box small, this bracket is rotated 90 degrees so that it is parallel to the ground. Before installing the drive side crank, this part must be rotated so that it is perpendicular to the ground. The second image shows the correct orientation.

Optional Herbie BiPod Kickstand simpifies loading

The Mundo’s frame accepts standard kickstands, including the Hebie BiPod kickstand. We recommend the BiPod, because it provides the right combination of strength and simplicity needed for utility bike.

The BiPod is not a true cargo kickstand. If it were, it would be much wider. Therefore you cannot expect the BiPod to keep your bike upright when loading heavy loads on one side of the bike. With this limitation in mind, the BiPod does improve the experience of everyday loading enormously. Over the course of a single shopping trip to a farmer’s market, you may use it 10 or 20 times.

Mundo accepts standard child seats

mundo with childseat

Carrying kids on a bike safely doesn’t have to mean enclosing them in a trailer. Some child trailers are built like rally cars, creating a safety cage around your child. But a bike towing a trailer is also much longer than a normal bike, which means that you and your child are more exposed when crossing streets, turning in an intersection, etc.

Why not keep your child closer to you, on a long-wheelbase bicycle that’s built to carry heavy loads to begin with? Read More

Carry heavy and large boxes with ease.

If you find yourself driving short distances to deliver your most recent EBAY sales to the post office, you’ll love the flexibility provided by the Mundo. Its heavy duty rear rack carries plenty of weight, and the large surfaces make it easy to tie loads down. Large boxes can either rest on the top rack, or on the lower load-carrying racks. With a cam strap, you’ll be able to cinch these loads to the frame. Read More

Mundo rear rack: Ready for customization

The Mundo’s rear rack was designed to make it easy for you to customize to your needs. The surfaces and tubes are mostly orthogonal (i.e. parallel), making mods easy.

Spend less time in the workshop and more time riding.

The picture above is a simple modification that attaches large Rubbermaid waterproof bins to the Mundo using sturdy hooks. The parts need to attach the bins to the rack cost approximately $12, and included:

– Stainless steel, nuts, washers, and bolts.
– Hooks.

Tools used:
– Drill
– Screwdriver. Read More

Mundo’s wheelbase and overall length are a hair shorter than Xtracycle SUB

Heading to Berkeley with Ben last week, I observed that he was able to squeeze into the BART elevator without picking up his front wheel. This can only mean that the Mundo is shorter overall than my Xtracycle. I’m not sure customers will notice the difference on the road, but for the occasional tight elevator, it’s a nice bonus.

Xtracycle carrying foam in BART elevator

Carry adult passengers in style and safety

If you’re like a lot of Rock the Bike readers, you’ve been building up a base of stength in your legs over the course of 5, 10, or even 20+ years. Sure, you may not measure your electrolytes or enter the local Sunday morning races, but you’re certainly an athlete, and you can’t be blaimed for wanting to show off now and then. We all do. Read More

One size really does fit most riders

The Mundo’s long wheelbase and low top tube allow riders of all sizes to enjoy the ride. Most mountain bikes can’t accomodate a wide range of riders, because they tip backwards on hills when a tall rider extends the seatpost. However, the Mundo’s long wheelbase allows tall riders to set the seat height where they like it. When you ride this bike hard, even on steep hills, you can’t pull the front wheel off the pavement, because the rider’s weight is distributed between the wheels. This also makes the Mundo a safer bike, as your front wheel, the steering wheel, always has enough weight on it to make safe turns. Read More

Thanks Sunday Streets! Highlights from the Pedal Powered Stage.

Many thanks to Rupa & The April Fishes, Cradle Duende, Izzy Wise, and Cello Joe for their performances. Also thanks to Tara Quinn who did an impromptu ground contortion routine shown above.

The crowd peaked at about 200-250. Rupa raved about the sound from our Pedal Powered Stage, saying “Our set at Sunday Streets sounded amazing, surprising power on his pedaled system.” Justin Ancheta, bandleader of Cradle Duende also thought we’d reached a new level of sound quality: “I think last year [after Sunday Streets in the Mission] I said it was the best I’ve heard, and this year topped it. The sound was great in front due to having Maya manage the board, monitors were working great.”


Above: Rupa Performs as two pedalers keep El Arbol powered up, along with 3 pedalers on stage right using Mundo 500s.

Crew Photo!

After Sunday Streets we hung out with a few new friends and did some social bike repair.