| Features |
Shaft Drive System |
Chain system |
| Maintenance |
Low -
No chain, no grease, no pain / Simple internal gear shifting |
High -
Dirty and greasy chain / Complicated derailleur and chainwheel system |
| Safety |
Gears will not fray / Gears
in an enclosed shaft-drive
|
Broken chain
Falling chain |
| Efficiancy |
Consistently 90%-94% |
75% - 97% depending on condition |
| Lifespan |
Up to 10,000 miles |
2,000 - 2,500 miles |
| Repair & Replacement Cost |
Low - no external parts to damage; shaft drive easy and inexpensive to replace |
High - all parts wear and will need expensive replacements |
| Noise |
Low |
High |
| Movement |
Smooth/continuous |
Rough/uncontinuous |
| Assembly |
Simple |
Complicated |
| Handling |
Safe - no external sharp or greasy parts |
Hazardous - all sharp and greasy parts exposed |