20 spd vs 18 spd

t4tomo
t4tomo Posts: 2,643
edited June 2011 in Road buying advice
With a 10 speed reach cassette do you generally (i.e in normal off the shelf bike spec) get an extra higher or lower gear or is the extra cog in the form of one less 2 tooth jump at the lower end of the gear range?
Bianchi Infinito CV
Bianchi Via Nirone 7 Ultegra
Brompton S Type
Carrera Vengeance Ultimate Ltd
Gary Fisher Aquila '98
Front half of a Viking Saratoga Tandem

Comments

  • rich164h
    rich164h Posts: 433
    It could be any of the scenarios you've described. It depends on the individual cassette.
  • night_porter
    night_porter Posts: 888
    More often than not the extra cog is mid-range so giving you less of a jump.

    Just look at the standard supplied with most bikes of both 18 and 20 gears and it is usually the same top and bottom gears.

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