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Review on Boost Chainring Stability and Performance with Zivisk Single or Double Chainring Bolts - Premium 7075 Aluminum Alloy M8 Crankset (5 Pcs) by Chris Norman

Revainrating 5 out of 5

A double eyebolt fits for my extra support.

Exactly what I was looking for. I bought twin sprocket bolts to replace the single bolts I originally used on this sprocket. The individual bolts did not go deep enough and were able to loosen as they exited the bank collapse. The thread fit is excellent and the deep outer shell is the best for this single chainring. I bought aluminum bolts and used blue Loctite and they work great for me. There is about 0.025 left before the shell sinks onto the stud, providing extra support for the single sprocket stud.

Pros
  • double star screws: shank diameter with nut: 10 mm. Shaft length with nut: 6.5 mm. Bolt Head Diameter: 8mm Screw head length: 8.5mm
Cons
  • Not bad