SunTour - style Power Stem Brand_Park Tool Box One™ Chain Tensioners are

Box One™ Chain Tensioners are extruded then CNC-machined from 7075 aluminium for an optimal balance of strength and weight

imitations

Increased wall thickness around spoke holesFlash welded seam jointCentralised spoke layout for increased spoke angleInternally drilled to reduce weightV-shaped internal rim bed for easier tyre installation or removalLarger flattened bead profile to resist dents and reduce pinch flatsLarge corner radius to reduce hang ups during grindsBox section walls are continuous with no cut-outs to maintain strength around the entire rimERD 388mm

•  Price is for two (2) crank bolts

None are perfectly straight like on a Taiwanese mass produced crank

SunTour - style Power Stem Brand_Park Tool Box One™ Chain Tensioners areTop load old school stem, based on a classic 1980's SunTour Power Stem. Chrome plated bolts and shaft. Available in ED Black, Blue, Gold, Red or Silver. 21. 1mm shaft for 1 inch old school BMX forks. Uses 6mm allen key and 13mm spanner.