Frame Material: all tubes 4130 chrome moly steel. main tube 2 in. .035 wall, front tube 1 3/4 in. .035 wall
Vehicle Weight: 35-50 lbs. This varies widely depending on tires, seating, and component choices
Wheelbase: 50 in.
Overall Length: 70 in.
Overall Width: 34 1/2 in.
Ground Clearance: 6 in. Knees, toes, and hands are all approximately this high
Overall Height: 28 in. to top of seat back
Front Brakes: Shimano or equivalent discs linked to one brake lever
Back Brake: Sachs drum
Transmission: two Schlumpf Mountain Drives and a Sachs 5 speed internal hub give 15 widely spaced gears with no overlapping ratios ranging from 3.7 to 55 gear inches. No derrailuer. All gears can be shifted while stopped.
Turning Radius: 9 feet
Price: $5000

S+S Coupling : This amazing coupler allows the bike to be taken apart into two pieces for shipping. The coupler costs less than a one way truck ride across the country. Now we can use UPS or Fed Ex and fit the whole bike into two boxes.

Seating

All vehicles have custom seat width and leg support length. Sternum support is fully adjustable for height, tilt angle, and fore and aft location. Padding, foam, and straps all custom.

Wheels

We offer three distinct rim sizes. They are all about the same overall height (top of the tire to the ground). But the rims are quite different. This gives us the amazing range of tires available to bicyclists. The only foolproof way to refer to these three different rim diameters is to use the ETRTO number. Don't worry if it seems to complicated, like there are too many choices, we will figure out the best tires for you together when you order.

451 mm (sometimes called 20 by 1 1/8) is the skinny road racing rim. There are several different tires that fit. The ultimate road racer is the 1 1/8 120 psi tire. There is also a fatter tire called 1 3/8 for the road,and a 1 3/8 tire with knobs for light off-road use.

406 mm (also known as 20 by 1.75 or 20 by 2.125) is the bmx size rim found on most kids bikes. these rims are wider than the 451 and offer an astounding range of tires. This makes the all purpose bike because there are skinny road-racing tires in this size as well as every size and tread pattern of fatter tires. We recommend the flat cross section trials tires for serious off-road riding.

387 mm (also called 18 by 2.50) is the big fat back wheel used on 20 inch trials bikes. There is only one tire available to fit this rim. And it is fat! A full 3 inches across, we mostly use this rim size just for the rear. We also have them for the front, making the ultimate bike for sand, snow, mud and downhill racing. These tires are designed to be used at very low pressures and are quite effective as suspension.

Gearing Options

Remember, it's not the number of gears that matters as much as the range of ratios. Our 15 speed transmission system offers a far wider spread than a regular mountain bike with 27 gears. The gearing can be easily changed up or down by changing sprocket sizes. The stock gearing gives a low of 3.7 gear inches (about 5 revolutions of the cranks for one revolution of the rear wheel) and a high of 55 inches, that's equivalent to the normal gear for a BMX bike. The wider steps between gears that we offer is better for a vehicle where you have to move your hand off the cranks to shift. In our experiments using derrailuers, we found ourselves often shifting two gears at a time. The close ratios designed for regular bicycles are really only appropriate on a regular bicycle or where the shifters are mounted on the crank handles.

Other Options

Custom Paint: The "other half" of One-Off is Leni Fried Designs. She is probably the best known bicycle paint artist in the world.

Warranty

One-Off has the best warranty in the business. When you call with a question, you talk to me, and I know about each bike. If something happens to your bike, I want to know about it. A large manufacturer has to write their warranty so that it becomes effectively meaningless. A small company like us can offer personal attention to detail and instantaneous response, i.e., the best warranty there is.

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