Gear ratios

Muttbunch
Muttbunch Posts: 11
edited October 2013 in MTB workshop & tech
Im away to change my 7 speed cassette for an 8 speed but im unsure what the gear ratios mean so far i have seen 11-32 ,12-26, 12-23 and 11-28 is there a certain one i need for the chain i have or is it my style of riding that determines what i need? And will i need to replace my front gears at all?

Comments

  • maringirl
    maringirl Posts: 195
    The first number refers to the smallest sprocket - 11 or 12 is usual. You can't get any smaller than 11. the second number is the biggest sprocket - eg 28,32. The numbers refer to the number of teeth on a sprocket. The bigger the sprocket the easier the gear is to ride 34 is likely be the max number of teeth for your bike's rear mech if it is a mega range one and you have a triple crankset - if not then you might have to settle for 32.
    The chain doesn't matter as long as it is a 7/8spd one.
    You'd only need to replace the front gears of the teeth are worn the chainrings
  • Muttbunch
    Muttbunch Posts: 11
    Perfect cheers, thats helped loads didnt want to wreck the gears putting the wrong one on lol

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