Potentially silly question about gear shifters

pllnm001
pllnm001 Posts: 2
edited March 2012 in MTB beginners
Hi

Just bought a new Trek 4300 which has Shimano Acera gear shifters. I've noticed that the levers on the left hand side shifters operate differently to the right hand side.... I've not had a bike in about 10 years before this but I was certain they should both do the same thing but I obviously could be wrong. I'll explain below.

Pushing the "thumb" lever of the left shifter INCREASES gears say from 2 to 3 on that particular shifter whereas pushing the "thumb" lever on the right hand shifter DECREASES the gears say from 9 to 8.
The "finger" lever on the left decreases gears whereas the "finger" lever on the right increases gears.

Sorry about any wrong terminology etc but I'm sure it makes sense... hopefully.

So I was wondering if this is intended or if it has been connected wrong.

Thanks

Comments

  • oodboo
    oodboo Posts: 2,171
    That's right, pushing the thumb lever pushes the chain to a larger ring.
    I love horses, best of all the animals. I love horses, they're my friends.

    Strava
  • nicklouse
    nicklouse Posts: 50,675
    unless it was rapid rise.
    "Do not follow where the path may lead, Go instead where there is no path, and Leave a Trail."
    Parktools :?:SheldonBrown
  • oodboo
    oodboo Posts: 2,171
    Can you get a rapid rise acera?
    I love horses, best of all the animals. I love horses, they're my friends.

    Strava
  • nicklouse
    nicklouse Posts: 50,675
    nope his old kit may have been though.
    "Do not follow where the path may lead, Go instead where there is no path, and Leave a Trail."
    Parktools :?:SheldonBrown
  • The Rookie
    The Rookie Posts: 27,812
    To clarify to the OP...

    Yes that is perfectly normal behaviour, 95% plus of MTB's work that way.

    Simon
    Currently riding a Whyte T130C, X0 drivetrain, Magura Trail brakes converted to mixed wheel size (homebuilt wheels) with 140mm Fox 34 Rhythm and RP23 suspension. 12.2Kg.

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