What's the difference between SRAM Eagle GX Fat4 and SRAM Eagle GX Fat5 cranks?- Mtbr.com
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  1. #1
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    What's the difference between SRAM Eagle GX Fat4 and SRAM Eagle GX Fat5 cranks?

    The price is different ($120 vs $170), the part number is different (00.6118.489.000 vs 00.6118.489.003), but they have the same listing descriptions.

    I saw a listing on Jenson that suggested the more expensive crank was CNC.

    There's nothing on the SRAM website.

    Only availability before November is from German vendors.

    Looking to get a set in 165mm.

    Anyone?

  2. #2
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    It seems like it's the chainline.

    This indicates the fat4 has a 66.5 mm chainline (https://www.bike-components.de/en/SR...-Model-p57648/) while the fat5's is 76.5 mm (https://www.bike-components.de/en/SR...-Model-p57649/).

    Tim

  3. #3
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    4" and 5" tire clearance, so I am assuming correct chain lines for 170(177) and 190(197) rear ends.

  4. #4
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    Yes, chainline is different, but why such a price difference?

    I wonder if there is a CNC version.

    Also, Truvativ has a version of this crank at a low price point, but only in 170 and 175.

    I'll probably just order from Germany, can't wait until November.

  5. #5
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    The cranks look identical, so the 100 must be in the ring/spider. Maybe the ring is more expensive?

  6. #6
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    I believe the fat4 is for 100mm bottom bracket shell and fat5 is for 121mm shells

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