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Replacement chainrings must be chosen with a bolt-hole count and spacing that matches the spider. Chainrings designed for use with multi-chainring crank arms may have ramps or pins to aid in shifting. The middle chainring, in the case of a triple crankset, usually has the most shaping to aid in shifting up and down.
The Jaffe/Swearingen SA-32T is a prototype American turboprop- powered training aircraft with side-by-side seating. A single example was built in the late 1980s, but no production followed. A single example was built in the late 1980s, but no production followed.
Deore XT is a mountain and touring bike groupset first introduced by Shimano in 1983. [1] It was Shimano's first mountain bike groupset, based on their existing Deore touring groupset, and it consisted of a triple-, double- or single chainring crankset, front and rear derailleurs, handlebar-mounted "finger" shifters, cantilever brakes, and large-flange hubs. [1]
A gear case, also known as a chain case or chainguard, is an enclosure for the bicycle chain and sprocket assemblages commonly employed by utility bicycles.It serves to protect the cyclist from being soiled or trapped in the chain rings and tends to fully enclose the drive train.
Biopace triple crankset, a non-round crankset The Biopace logo on a chainring. Biopace is a tradename for a type of ovoid bicycle chain ring manufactured by Shimano from 1983 to 1993 [1] [2] The design was intended to help overcome the "dead zone" where the crank arms are vertical and riders have little mechanical advantage.
On a bicycle, the cassette or cluster [1] is the set of multiple sprockets that attaches to the hub on the rear wheel. A cogset works with a rear derailleur to provide multiple gear ratios to the rider. Cassettes come in two varieties, freewheels or cassettes, of which cassettes are a newer development. Although cassettes and freewheels perform ...
PA-32R-300 (1976–1978) Marketed as the Piper Cherokee Lance.Initial version of the retractable PA-32 line, with a standard tail. [4]PA-32RT-300 (1978–1979) After the first half of 1978, Piper modified the tail to a "T" design with the stabilator (horizontal stabilizer/elevator) moved to the top of the vertical tail.
Configurations. The formula is defined as follows: A × B / C or A × B * C with: A = number of wheels (twin-mounted tires count as one wheel) B = number of driven wheels