DC 4127 sprag from AliExpress (2019)

I think VXB may well be sourcing from China now. I think, but can't be sure, that the last one I sourced from them did have the P/N on it but that was some years ago. It seems that if all the parts are in good shape with a good starter and electrical system the E-start works just fine. I know that just replacing the sprag with the beat up parts didn't last. I suspect that the original parts weren't up to snuff - not hard enough and/or not in tolerance allowing the sprags to roll and lock.
 
I forgot to mention, the vendor who I bought the sprag clutches from is The Special Bearing Store.
 
Everyone is pulling in the clutch lever before hitting the magic starter button , right ?
Saves a bit on the wear and tear on our sprags.
Otherwise you add clutch-gearbox weight/ resistance into the starter system. That stresses the sprag more unnecessarily. Enjoy.
 
Still going strong with two years hard use. This is the HWB bearing Co. Item. Running in a tough core case hardened sprocket.
 
Ok, but at a $22.40 cost, are you made of money? :)
My $17 sprag is still working perfectly, all done incorrectly running in worn original parts.
Can't seem to kill it!

Glen
 
Everyone is pulling in the clutch lever before hitting the magic starter button , right ?
Saves a bit on the wear and tear on our sprags.
Otherwise you add clutch-gearbox weight/ resistance into the starter system. That stresses the sprag more unnecessarily. Enjoy.
Thanks for the tip. Kind regards
 
Back
Top