Buy a Bike from Zize Bikes Today. We Guarantee You'll be Glad You Did!

At Zize Bikes, we sell bikes that are built strong enough customers of any size.  So what is it that makes our bikes so special?

• We're the only builders of bikes that carry up to 550 pounds.
• Our 100% guarantee on our own Zize Bikes. If you don't love it, we will buy it back!
• Extensive selection including bicycles, tricycles, and electric bikes.
• Zize Bikes are unmatched in quality of parts, materials, and construction.
• Superior design and construction.
• We carry a wide array of Zize-appropriate accessories, each one tested to be the best for your use.
• Toll-free support in choosing the best bike and for technical questions. Best prices on the best products.

If you find one of our products for less, let us know and we'll match it!*

100% Guaranteed

We want you to love your bicycle from Zize Bikes. If, after a full 90 days, you are not satisfied for any reason, please let us know. We will arrange for repair, replacement, or refund of your purchase price, as you wish.

Please note, if you wish to return your bicycle, we will send you a label to attach to the box, to be used with the identified carrier company (usually UPS or FedEx). The cost of shipping the bike back to Zize Bikes will be subtracted from your refund

A Strong Bike Makes All the Difference

When we were young, biking meant freedom!

• No more walking
• You didn't need to be chauffeured
• Freedom to go where you wanted, on your own power

Ah, but things have changed.  Somehow the years and the pounds have multiplied, an

d perhaps bike riding has gone off the program?  And why is that?   The majority of

bicycle companies today don’t make cycles for big people, strong bikes that are built to comfortably support  bodies that are bigger than 200 pounds.  In fact, to ride on one of these bikes is to invite trouble and there have been no options available for the heavy bike rider. Until now.

Custom Built Bikes don't have anything on our Frames!

Big riders know instinctively that bike frames may be precarious. The key to making a superior bike for our customers is in the frame. We use chrome-moly steel tubing from the aircraft industry, which provides a stronger base than steel or iron, yet retains subtle flexibility and lightness. This alloys kept the bicycle from being too heavy, yet provides a comfortable ride.

The structural integrity will last for a lifetime of riding.

1. Our frames are built with aircraft-grade seamless chrome-moly
2. Our frame material thicker than anywhere else in the industry
3. Using rolled, seamless tubing means your frame will never split

Extra Large Bikes Require Extra Strong Brakes

Who doesn't remember the little rubber pads attached to the end of the calipers as being all that stood between you and stopping? For the XL bicycle rider that would not be enough. Selecting the modern disc brakes that are becoming standard on more elite bicycles was the superior way to look at this element. Gone is the brake fade we all remember, and so too is any sense of urgency whenever you feel the need to use your brakes. Whether you use your brakes to stop gently in front of your favorite coffee shop when you're out for an afternoon ride or for an emergency stop heading downhill, you'll be able to ride in confidence.

Heavy Riders Need Comfortable, Stable Seats

On any bike the seat is the comfort zone. Tires are where the rubber meets the road, but this is where the human meets the bike. And as we gain in age it's more important than ever.

• Our seats are wide, padded and built for comfort
• Tested from many designs to provide hours of easy riding.
• Seat posts are firmly locked to the bike—no quick-release levers (which can mean a sliding seat)
• Seat clamps are integrated inside the post, which means no wiggling seat for heavy riders

The solid connection of the seat to the bike frame will give you the direct feel of the bike and raise your confidence riding, whether you're meandering on a country lane or negotiating traffic in a city. Every rider expects this connection, and with Zize Bikes, heavy riders meet, and exceed, these same expectations.

Bikes for Big Riders Require Big Tires and Wheels

The tires you see on most bikes today haven't changed much since the days when you first started riding. But for bigger folks, it makes sense that we're going to need something more than thin tires with low thread counts that seem to get flat just by looking at a bumpy road.

We created super strong tires that take big people and the bikes they ride through rough terrain and smooth. These are better tires that transport riding a bike from a task of appreciating friction to gliding on air. For big riders it is a matter of, once again, adding to confidence in riding through nearly effortless motion and positive feel of the road.

• • Our wheels are wide, but not so ride that they can't fit into most standard forks
  • Our spokes are 14-15 gauge, the strongest in the industry
  • We use 36 double-butted stainless steel spokes per wheel
  • Our tires measure 2.4", and great for support and stability
  • Our tires are three times more durable than traditional cruiser bike tires
  • Our tires have well rounded side walls for ease in handling
  • The smoothness of our tires creates low rolling resistance
  • Our inner tubes are sealed with Slime® so it keeps the tires from losing air or getting flats

Why You Need Tougher Pedals and Cranks

While the pedal assembly may seem simple, it is actually a cantilevered piece that absorbs all the rider's weight when pedaling, especially under the stress of going uphill or obtaining speed.

For the plus sized rider this is a crucial component. We didn't need to look further than to the area in biking where the bikes are stressed on a regular basis—the world of BMX racing. The parts selected for our Zize Bikes will easily stand up to a plus size rider.

• Shimano® anodized aluminum cranks for integrated strength
• Heavy duty steel alloy platform pedals
• Pedals with oversized cartridge bearings to keep the pedals in place all the time
• Pedals are mounted close to the crank, eliminating bending

The Gears Make You Feel like You're on a Customized Cruiser Bike!

If you've never ridden with internal gears before, you are in for a wonderful surprise! No more gears slipping, no more grease on your pants leg, no more chains falling off, no more timing of the shifting. With our Shimano designed, internal gear system, you no longer have to think about the standard dérailleur with its plethora of open gears, exposed chain and the requisite grease and oil. The ease with which you can change speeds truly will make you feel like you're on a customized bike.

• Riders can shift gears faster, easier, and in any position, including at a full stop
• 90% easier to use than external gears
• Adjust your gears once, almost no need for further adjustments
• Stronger than external gear systems
• Chains NEVER fall off

A Custom Built Bicycle Finish

Zize Bikes are assembled with the care of a limited run feeling. Paint, the standard, less expensive option, would chip and ding quickly and soon enough lose the allure of the flowing lines. We spend the extra time to powder coat our bikes. The polished glass look in the photos is what you will find when you remove your bike from the shipping box. Durable, and beautiful,it's the custom built bicycle finish you deserve.

We are happy to ship most of our bikes worldwide and we offer live international shipping rates from DHL Express. Simply add your purchase to your cart, enter your address and your shipping will be calculated at the time of checkout.

If you live in Alaska or Hawaii, please contact us directly at Zize Bikes for a shipping quote.

Please note that since shipping within the continental US is included, we’ve deducted that amount from the quoted rate.