What is cottered crank?
Cottered cranks are crank arms that slide onto a round axle and are wedged in place with a cotter pin. They got a lousy reputation on cheap, bike-boom bikes from the 70s, but there was a time when they were top line racing equipment, and they can be quite lightweight.
What is Cotterless crank?
Often referred to as ‘cotterless’, since this was the design that was introduced after cottered spindles, square taper was once the most popular (and only) style ‘cotterless’ crank. This interface consists of a spindle with square tapered ends that fit into square tapered holes in each crank.
What is octalink crankset?
Octalink Bottom Brackets. This system, designed by Shimano, was the first successful alternative to the older square taper. The Octalink system uses a larger and stiffer spindle with eight splines. The splines provide a greater contact area between crank and spindle for a stiffer interface.
Can you reuse cotter pins?
As a general rule, cotter pins should not be reused as the extra bending weakens the pin. This can lead to the pin failing where a fresh pin would not resulting in a broken lock allowing the nut to spin loose.
How do you use R clips?
R-clips, also known as retaining pins are commonly used to secure the ends of round shafts such as axles and clevis pins. The straight leg of the R-clip is pushed into a hole near one end of the shaft until the semicircular part grips one side of the shaft resisting any force removing the R-clip.
Is a split pin the same as a cotter pin?
A cotter pin, also known as a split pin, is a metal fastener with two tines that are bent during installation. Typically made of thick wire with a half-circular cross section, split pins come in multiple sizes and types.
What is the difference between octalink v1 and v2?
Octalink exists in the marketplace in two variants, Octalink v1 and Octalink v2. The difference between the two can be seen by the depth of mounting grooves on the bottom bracket spindle.
What does F N mean on a bike?
FN (Fabrique Nationale de Herstal) is a Belgian company established in 1889 to make arms and ammunition, and from 1901 to 1967 was also a motorcycle manufacturer.