Blackspire KM-1 C4

Blackspire KM-1 C4

Review KM-1 C4

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Blackspire KM-1 C4 (MSRP $129.99) — For Frames w/ BMX BB shells New Bolt-style Y-Plate w/ flush backside to accomodate more frames with low pivots New Lighter C4 3/8” Polycarbonate Bashring New Molded Upper Slider and Guide Roller Fits 36t – 38t rings 104, 110BCD

Specifications Compare to other ChainGuides

Release Date 2010
Price $130
Weight 400 g
Color Options Black
Mounting Standard BMX BB
Mounting Standard - Chain guide mounting standards determine its compatibility with your frame. Older frames will use a simpler version known as ISCG. Most new age frames will use ISCG05, however there is adapters made for cross compatibility.
Single/Dual Ring Single

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