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Amazon.com : Zipp Speed Weaponry Service Course SL Stem - 100mm, 31.8 Clamp, +/-6, 1 1/8", Aluminum, Matte Black, B2 : Sports & Outdoors
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Amazon.com: Zipp Speed Weaponry Service Course Stem - 90mm, 31.8 Clamp, +/-6, 1 1/8", Silver : Sports & Outdoors
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