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The 104 BCD bashring can be added to the crankset to protect a 104 or 64 BCD chainring.

  • Properly sized to fit 104 or 64 BCD chainring

  • Two sizes for ultimate protection: smaller 26-30t (132 mm diameter) and mid-sized 32t-34t (148 mm diameter). 

 

Compatibility

  • These are for use with 104 BCD chainrings or 64 BCD chainrings on 104 BCD cranksets
    • These are compatible with all triple 104 BCD cranksets and mount in the “big ring” position
    • They are compatible with double cranksets that have flat outfacing mounting tabs, like XTR M980. However, many 2x specific cranks, like Shimano XT M785, have a profiled outer surface on the mounting tab so our bashring cannot be mounted on that non-flat surface.
    • These work great with the 104 BCD Elliptical 32t ring. They will work with the 34t as well, but at the max diameter a few teeth will extend just beyond the bashring.
  • Chainring bolt requirements for this bashring
    • 104 x 30t - 10mm bolts are required for use with the bashring.
    • Other 104 BCD sizes - you will need 8mm bolts (stock size that comes on 3x cranksets holding the middle and big rings on). Wolf Tooth does not make these.
    • When using with the 64 BCD you will need 6mm bolts to mount the bashring. Note: Orient the head of the bolt to the inside to provide clearance for the chain (bolts will go in backwards).

      Related Products

      104 BCD chainrings

      64 BCD chainrings

      Chainring Bolts

        Tech Specs

        Weight:  26-30t • 51g  |  32-34t • 55g
        Material:  7075-T6 aluminum
        Outside diameter:  26-30t • 132 mm  |  32-34t • 148 mm
        Made in the USA

          WARNING Handling this product will expose you to chemicals, including lead, known to the State of California to cause cancer and birth defects or other reproductive harm. Wash hands after handling. For further information go to www.P65Warnings.ca.gov.​


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