Machined for perfect parallelism. Guaranteed. A threadless headset depends on perfectly parallel surfaces to keep your fork secure through every twist, turn, bump and descent. Which is why we precision grind each and every one of our carbon spacers for perfect parallelism it's a detail we feel too important to pass up. Clear coated exterior with Zipp logo. Available in 1 18 diameter, in lengths of 4, 8, 12 and 30mm.
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