MKS Track Chain Tensioners: For 10mm Axle MFPN=820-09-029-KIT 5mm stroke (55mm plus 2

5mm stroke (55mm plus 2

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MKS Track Chain Tensioners: For 10mm Axle MFPN=820-09-029-KIT 5mm stroke (55mm plus 2MKS Track Chain Tensioners: For 10mm Axle. MKS Track chain tensioners perfect for adjusting chain tension on your fixed gear or single speed bike. Includes two tensioners Made of cast Stainless Steel using the lost wax method JIS certified compatible with hub axles diameter of 10 mm and smaller and a maximum drop out thickness of 5 mm TECH SPECS Color Gray