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Where to buy Shimano Deore Rear Derailleur 9 Speed    SEE ALL
 
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Product info

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4 Singletracks members own this.
#26 out of 77 Derailleur
Brand: Shimano



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Rider questions

Q: Can it be used with road sti
A: Yes. At 7, 8, and 9 speeds (the number of rear sprockets), Shimano derailleurs and shifters are cross-compatible between road and mountain as both classes of derailleur have the same actuation ratio--fancy way to say the derailleur's move the same distance per millimeter of cable that the shifter pulls. It's fairly important (for crisp shifting and correct indexing) that the shifter speeds match the number of rear sprockets because distance between the sprockets decreases as you go up in the number of sprockets and shifters are designed to pull the correct amount of cable. Overall, and for example, you can take this 9 speed mountain derailleur, put it on a road bike with Shimano 7 speed STI's and a 7 speed cassette and expect to obtain perfect indexing.

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Reviews

  • Landonrf13
    ****

    Good value derailleur with quality shifting and raliability. Worth it if on a budget for your rig.

    Pros
    Snappy shifting, fairly light, affordable, easily adjustable

    Cons
    Slightly heavier than it's higher tiered counterparts, shifting comparable but not as good as SLX, XT or XTR

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  • Matthew Bonner
    ****

    This is for the mountain biker that doesn't really care if their derailleur runs perfectly. It's great at everything for it's price range. I'll say this you definitely get what you payed for... a $40 derailleur.

    Pros
    Cheap
    tough for the price
    smooth for the price

    Cons
    none... for the price

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  • Upinflames7
    ****

    shifts mostly alright, but fits my needs well, better than any cheaper shimano stuff but still cheap enough to be replaceable. have already destroyed one and had my current one repaired after getting severely bent.

    Pros
    cheap
    works

    Cons
    cheap
    needs constant adjusting

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  • stumpyfsr   ✓ supporter
    ****

    Yes, this derailer not as quick and precise as more expensive ones, but what you get what you pay for. If you're a racer, look further. If you need a cheap and sturdy unit, then this is it.
    It came stock on my fatbike and I will ride it until it fall appart. Then will upgrade for something better.
    And yes, cable has to be adjusted once in a while

    Pros
    Cheap, reliable, durable

    Cons
    Not as quick and precise shifting as more expensive models

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  • jtorlando25
    ***

    It works and it's cheap. If you don't mind adjusting the cable tension quite often, then it's alright.

    Pros
    -Cheap
    -Shifts well until cable stretches

    Cons
    -One the cable starts stretching, it requires some adjusting every couple rides

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