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  1. #1
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    Sonix - what size rear shock? and advice.

    I have an '06 Sonix. (16 inch frame)
    Manitou Radium R Rear shock.
    Main Question --> If i want to replace the radium rear shock - where or how do I find what size it is? So I know what to buy?

    Can you guys make suggestions on what shock to buy -
    Rear shock with pro pedal and more adjustability than Manitou Radium R.
    Budget 100 -150 bucks for a used one on EBay

    I've seen fox floats....RP2's from 2008 that are in that range.
    Anything else I should look for?

    I mainly ride XC trails....mostly with lots of roots or smooth.
    I live in TX so no monster downhill sections.

  2. #2
    ride hard take risks
    Reputation: dogonfr's Avatar
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    measure the eye to eye on the shock mounting bolts then go the RS to get the stroke of the shock.

    http://www.sram.com/node/180/brand/rockshox/src/cat

    Configurations 152 x 31mm (6.0 x 1.25"), 165 x 38mm (6.5 x 1.5"), 184 x 44mm (7.4 x 1.7"), 190 x 50mm (7.5 x 2.0"), 200 x 50 or 57mm (7.875 x 2.0 or 2.25"), 216 x 63mm (8.5 x 2.5"), 222 x 66mm (8.75 x 2.6")

    Manitou ISX-4 or 6 are awesome!!!

    http://www.spadout.com/p/manitou-evolver-isx/
    Formotion Products
    http://www.formot

  3. #3
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    7.5 eye to eye and 2" travel or 190mm eye-to-eye and 50.8mm stroke.

  4. #4
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    I ride a Fox RP23 on my Sonix and love it. The RP2 is also a good choice...just a little less adjustability than the RP23. The RP2 will be a nice upgrade over the Radium.

  5. #5
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    Reputation: dunerinaz's Avatar
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    Look for a manitou s-type in your size. They are a great shock for the money. Bikewagon on ebay sells them for cheap. Most of their auctions have a "make offer" option. I bought mine from them and they accepted my first offer which I thought was a low ball offer. I think they make a few different models. Mine is the SR SPV. I like being able to adjust the platform pressure. Keep it stiff for long rides and lower the pressure for a soft plush ride on downhills.

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