This is not the Shifter Kit right sprocket to chainring BMX chain or the left 415 chain - this is speed chain for derailleurs and of course is fine for non-motorized multispeed bikes as well.
We recommend you replace your bike chain if you install a shift kit on a used bike, and we think this chain will serve you well. If your old chain has more than a couple years on it, you will be surprised how much smoother running and shifting your bike will be with a new high quality chain.
Posted by Chris on May 7th 2017
got it to upgrade my roadmaster mtn bike chain cuz I added a 80cc engine but with any pressure it slips
SBP says - Chris: We have reached out to you as to where/what you are using this speed chain for because we don't understand how any properly tensioned and fitted chain can cause slipping. Please respond.