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  1. #1
    mtbr member
    Reputation: djork's Avatar
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    Need a biiger middle chainring for Shimano LX M582 crankset

    Current configuration is 22-32-44. I want to reconfigure it 22-36t-bash. I'm also considering 34t for the middle ring.

    Will any 4 x 104bcd work? If so, which brand ring works best? I prefer one with pins and ramps and made of aluminum. I mainly see DH or single-speed rings in 34 or 36t with no shift ramps or pins. There seems to be a Shimano LX M580 36t aluminum ring, but I can't confirm this.

    If I'm running an XT 11-32t cassette, which is a better front missdle ring? 32t, 34t, or 36t?

    Last question! Can the middle ring be removed without taking out the crankset? I know I can remove it from the BB, but I'd still have to remove the 22t ring to take out the middle ring. Besides, I really don't want to remove crankset if the 32t ring can be looped out of the crank arm.

  2. #2
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    bump

  3. #3
    Always Learning
    Reputation: BruceBrown's Avatar
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    Quote Originally Posted by djork
    Current configuration is 22-32-44. I want to reconfigure it 22-36t-bash. I'm also considering 34t for the middle ring.

    Will any 4 x 104bcd work? If so, which brand ring works best? I prefer one with pins and ramps and made of aluminum. I mainly see DH or single-speed rings in 34 or 36t with no shift ramps or pins. There seems to be a Shimano LX M580 36t aluminum ring, but I can't confirm this.

    If I'm running an XT 11-32t cassette, which is a better front missdle ring? 32t, 34t, or 36t?

    Last question! Can the middle ring be removed without taking out the crankset? I know I can remove it from the BB, but I'd still have to remove the 22t ring to take out the middle ring. Besides, I really don't want to remove crankset if the 32t ring can be looped out of the crank arm.
    Race Face makes a 104mm BCD middle ring with ramps/pins 34T and 36T. Shimano makes a 36T as well. Middleburn makes a 34T and 36T with ramps and pins. I'm sure there are several others as well....

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