Shimano produces an extensive line of bicycle cranksets for use in on-road and off-road cycling. The M341 and M361 cranksets are found on a number of production mountain bikes and trail bikes. Each has triple chain rings that work in conjunction with a front derailleur on multi-speed bikes. Similarities and subtle differences are found when comparing the Shimano M341 and M361 cranksets.
Product Line
The M341 and M361 are among Shimano’s Acera line of accessories. The cranksets are made from cast aluminum alloy with silver or black finish. Mechanical options are 170 mm crankarms for improved leverage in tight situations and 175 mm crankarms for increased top-end. Gearing options of 42-32-22T and 48-38-28T are available with either model.
Design
The triple chainrings are mounted to the main crankarm assembly and each ring is separated by critical spacers. In addition, each ring is machined with a tapered face that allows the chain to travel smoothly from a smaller ring to a larger ring during gear changes.
Considerations
The weight of an accessory is typically not a factor with most recreational riding. The M341 is heavier and priced below the M361. For precision applications where weight is a concern, the lighter and higher-priced M361 would be preferred. Each model is manufactured with the durability that is synonymous with the Shimano name.
Installation
Typical conversions and installations include installation of a compatible bottom bracket and front derailleur. Each chainring bolt is tightened to the manufacturer’s torque specifications, and the assembled cranksets are held in place with a threaded lockring. Alignment of the derailleur and adjustment of the shifting cable is done by cycling through the gears and rotating the pedal cranks with the bicycle elevated on a repair stand.
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