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2. Shaft-driven bicycle - Wikipedia

   en.wikipedia.org/wiki/Shaft-driven_bicycle

   Dynamic Runabout 7 shaft-driven bicycle Drive-shaft housing A shaft-driven bicycle is a bicycle that uses a drive shaft instead of a chain to transmit power from the pedals to the wheel . Shaft drives were introduced in the 1880s, but were mostly supplanted by chain-driven bicycles due to the gear ranges possible with sprockets and derailleurs .

3. Hydraulic fluid - Wikipedia

   en.wikipedia.org/wiki/Hydraulic_fluid

   Common hydraulic fluids are based on mineral oil or water. [1] Examples of equipment that might use hydraulic fluids are excavators and backhoes, hydraulic brakes, power steering systems, automatic transmissions, garbage trucks, aircraft flight control systems, lifts, and industrial machinery.

4. Hydraulic bicycle - Wikipedia

   en.wikipedia.org/wiki/Hydraulic_bicycle

   Front-wheel drive and two-wheel drive systems can be implemented. (See two-wheel drive) Drive can double as a hydraulic brake, eliminating the weight, cost, and maintenance of regular brakes. The hydraulic (hydrostatic) transmission could be useful for recumbent bicycles because the hoses may be easier to route than a long chain.

5. Front freewheel - Wikipedia

   en.wikipedia.org/wiki/Front_freewheel

   The Shimano Front Freewheel (FFS) was a proprietary bicycle drivetrain design of the 1970s that placed a freewheel between the pedal cranks and the front chainrings – enabling the rider to shift gears while coasting. [2] FFS rear freewheel is different than a standard freewheel because it's "stiff" with more friction than a normal rear freewheel.

6. Hydraulic transmission - Wikipedia

   en.wikipedia.org/wiki/Hydraulic_transmission

   Hydraulic transmission may refer to various transmission methods for transferring engine power to drive wheels, using hydraulic fluid: Diesel-hydraulic transmission , used in railway locomotives Hydrostatic transmission , using hydraulic motors to convert the fluid energy into rotary propulsion

7. Comparison of hub gears - Wikipedia

   en.wikipedia.org/wiki/Comparison_of_hub_gears

   Shimano Alfine SG-500 2006 2016 (?) [15] 8 307% 1600 g City Shimano Nexus Inter-8: 8 307% 5th gear 1550-2040 g City Shimano Nexus Inter-7: 1995 7 244% 1465-1860 g City Shimano Nexus Inter-5E 2019 5 263% 60 Nm 1st gear 1650 g e-bike Shimano Nexus 4 Speed 4 184% 1st gear City Shimano Nexus Inter-3: 3 187% 2nd gear 1220 g City SRAM Spectro E12 (Elan)

8. Mayo looking for stories about Naeve Hospital as removal ...

   www.aol.com/sports/mayo-looking-stories-naeve...

   Sep. 22—As the date to remove the former Naeve Hospital approaches, Mayo Clinic Health System in Albert Lea is seeking to collaborate with community groups and contractors to preserve stories ...

9. Bicycle gearing - Wikipedia

   en.wikipedia.org/wiki/Bicycle_gearing

   Bicycle gearing is the aspect of a bicycle drivetrain that determines the relation between the cadence, the rate at which the rider pedals, and the rate at which the drive wheel turns. On some bicycles there is only one gear and, therefore, the gear ratio is fixed , but most modern bicycles have multiple gears and thus multiple gear ratios.