Performance
Folded—front view
Most folding bicycles are intended for commuter and utility purposes, and hence they emphasize ruggedness, comfort and convenience over speed. A small number of high-end folding bikes are made for speed. In the interest of compact folding, certain trade-offs are common: Most folding bicycles use small (20" or less) diameter wheels. All else being equal, smaller diameter wheels give a rougher ride than larger wheels. Folding bicycles often have a shorter wheelbase, which also contributes to a rougher ride. To avoid losing any more comfort, narrow tires are rarer than for non folders. Suspension systems can be incorporated into the design of a bicycle to give a smoother ride. The suspension, however, will also absorb some of the pedaling energy that would otherwise be used to move the bicycle forward in a more rigid bicycle.
Folding bicycles often separate or fold in the middle of the frame, which, depending on the design, can weaken the frame and cause more energy-absorbing flexing. Folding bicycles often have elongated seatposts and stems. These longer components, which project above the frame like masts, experience greater bending stresses where they meet the frame, compared to the shorter components of regular bikes. There have been sporadic reports of failure in these components in online message forums, and at least one recall due the failure of the steering mechanism. Folding bicycles necessarily have more parts, to allow folding and to lock the frame when unfolded. This results in a more complicated design, with more parts that can potentially fail.
Size
Overlaid photographs of a 20" wheeled KHS F20 folding bicycle and a conventional, 700c wheel, non-folding KHS Flite 100. The saddle, handlebars and bottom bracket are in more or less the same relative positions on both, and the wheelbase is similar.
Folding bikes generally come with a wider range of adjustments than conventional bikes for accommodating different riders, because the frames are usually only made in one size. Seatposts and handlebar stems on folders extend as much as four times higher than conventional bikes. For even greater range of adjustment, longer after-market posts and stems are available. While folding bicycles are usually smaller in overall size than conventional bicycles, the distances between center of bottom bracket, the top of the saddle and the handlebars, the primary factors in determining whether a bicycle fits its rider, are usually similar to that of conventional bikes.
The wheelbase of many folding designs is also very similar to that of conventional, non-folding, bicycles. However, full-size (26") wheeled bikes that fold are becoming more prevalent in the folding bike world. Many manufacturers are producing folding bikes designed around folding systems that allow them to utilize 26" wheels. For example, Montague Bikes are all folders based on the 26" full-size wheel.
Folded—front view
Most folding bicycles are intended for commuter and utility purposes, and hence they emphasize ruggedness, comfort and convenience over speed. A small number of high-end folding bikes are made for speed. In the interest of compact folding, certain trade-offs are common: Most folding bicycles use small (20" or less) diameter wheels. All else being equal, smaller diameter wheels give a rougher ride than larger wheels. Folding bicycles often have a shorter wheelbase, which also contributes to a rougher ride. To avoid losing any more comfort, narrow tires are rarer than for non folders. Suspension systems can be incorporated into the design of a bicycle to give a smoother ride. The suspension, however, will also absorb some of the pedaling energy that would otherwise be used to move the bicycle forward in a more rigid bicycle.
Folding bicycles often separate or fold in the middle of the frame, which, depending on the design, can weaken the frame and cause more energy-absorbing flexing. Folding bicycles often have elongated seatposts and stems. These longer components, which project above the frame like masts, experience greater bending stresses where they meet the frame, compared to the shorter components of regular bikes. There have been sporadic reports of failure in these components in online message forums, and at least one recall due the failure of the steering mechanism. Folding bicycles necessarily have more parts, to allow folding and to lock the frame when unfolded. This results in a more complicated design, with more parts that can potentially fail.
Size
Overlaid photographs of a 20" wheeled KHS F20 folding bicycle and a conventional, 700c wheel, non-folding KHS Flite 100. The saddle, handlebars and bottom bracket are in more or less the same relative positions on both, and the wheelbase is similar.
Folding bikes generally come with a wider range of adjustments than conventional bikes for accommodating different riders, because the frames are usually only made in one size. Seatposts and handlebar stems on folders extend as much as four times higher than conventional bikes. For even greater range of adjustment, longer after-market posts and stems are available. While folding bicycles are usually smaller in overall size than conventional bicycles, the distances between center of bottom bracket, the top of the saddle and the handlebars, the primary factors in determining whether a bicycle fits its rider, are usually similar to that of conventional bikes.
The wheelbase of many folding designs is also very similar to that of conventional, non-folding, bicycles. However, full-size (26") wheeled bikes that fold are becoming more prevalent in the folding bike world. Many manufacturers are producing folding bikes designed around folding systems that allow them to utilize 26" wheels. For example, Montague Bikes are all folders based on the 26" full-size wheel.
Filing Folders Self-Adhesive Paper
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