lockring การใช้

• The smaller diameter thread on the fixed side has reverse / left hand threads to accept a lockring.
• Both machines use rotating lockring doors; the larger one is hydraulically turned, the smaller is pneumatic.
• Hyperglide freehubs use a lockring to hold the cassette in place that screws on to the inner part of the freehub.
• Recoil pushes the barrel, lock and bolt backwards until the lockring hits a cam that rotates it unlocking the bolt and barrel.
• The bolt continues pushing the round into the chamber and locks up when the lockring rotates and locks the bolt and barrel extension together.
• This may work for some lighter, or delicate riders, but any repeated reverse or braking pressure on the pedals will eventually cause the cog and lockring to come loose.
• The outer cup covering the ratchet pawls and bearings is pressed into place at the factory, secured by interference fit, leveraging the same inner threads of the shell into which the cassette lockring normally screws.
• Often, the wrong thread type lockring will easily thread onto the wrong hub, but with use over time, the poorly mating thread interface will cause the threads on the hub to become damaged or destroyed.
• There are also different sized threads for the left hand lockring ( English / ISO 1.29 " x 24 TPI ), Campagnolo / Phil Wood ( 1.32 " x 24 TPI ) and Old French ( 33 mm x 1.0 mm ).
• If a track hub is not available, or if a beginner wishes to try a fixed gear bicycle without buying a new hub or rear wheel, track cogs can be installed on a standard Freewheel hub using a right hand threaded ISO English bottom bracket lockring as the lockring for the cog ( the threads are exactly the same ).
• If a track hub is not available, or if a beginner wishes to try a fixed gear bicycle without buying a new hub or rear wheel, track cogs can be installed on a standard Freewheel hub using a right hand threaded ISO English bottom bracket lockring as the lockring for the cog ( the threads are exactly the same ).