These spline fit chainrings are designed for the DMR MK3 Chieftain and CRISIS cranks and use tough splines, not a single drive bolt, to transfer the power. Spline Drive rings lock to the crank using a Shimano pattern lock ring and spring clip.
The 36t and 38t chainrings are drilled to take the DMR Sideplate and a 28t chainring is available for street and park use. Designed to runs with geared chains.




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