Join Date: Apr 2009
Location: New Rochelle, NY
Bikes: too many bikes from 1967 10s (5x2)Frejus to a Sumitomo Ti/Chorus aluminum 10s (10x2), plus one non-susp mtn bike I use as my commuter
Mentioned: 46 Post(s)
Tagged: 1 Thread(s)
Quoted: 1768 Post(s)
The one different key or timing notch is what puts the glide into xxx-glide shifting. It ensures that the shift gate is positioned where the chain will meet the new sprocket oriented to engage smoothly. phased and gated shifting serves a similar purpose to synchro-mesh in manual auto transmissions.
Failure to line up the timing marks or key notches won't in any hurt when running on any sprocket, but can cause delayed or sloppy shifting, or that bit of slippage that folks riding before gated shiftinmg remember so fondly.
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