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Had the rear sprocket sheer off one of my old AX1's at night on the road from Emei to Chengdu. That had cast alloy wheels and a kind of cush drive but the reason was simply cheap metal manufactured and repaired Chinese style.
I still think it would be worth trying better bolts. Not only are those bolts exposed to stresses from various direction but also lots of corrosive elements.
CC
I'm not sure of the criteria used by designers for choosing one type of transmission shock absorber or another, or even for including one at all. As for the cush drive one, this rubber between the components cushions the shock that occurs from engine and braking torque. Transmissions, clutch, and spokes will last much longer with a cush drive hub setup.
Suzuki didn't see fit to include one on the DR range either, so it's not a Qingqi failing. It maybe that they consider the shock absorber fitted to the clutch basket is enough for this purpose. It's the springs fitted between the primary drive gear and the clutch basket itself, like on this photo:
http://www.telecable.es/personales/a...utchbasket.jpg
Hello friends, I bought my bike recently.
I have sailed on the forum MCM and valuable information received. I would like to thank the way my questions answered. I am happy to be able to count on the help of all. :clap:
Thank you
LC :thumbsup:
Luis Carlos. Have a look at posts number 26 and 27 on this thread:
http://www.mychinamoto.com/forums/sh...p?t=511&page=3
It seems that the XF200 which is a Qingqi made by some sort of subsidiary called Shandong Pioneer at http://www.xfmotor.com.cn/en/ and superficially LOOKS like our bikes, IS fitted with a cush drive rear hub and a completely different rear sprocket fixing method. It looks superior to me and wonder how the two makers doing what appears to be the same bike can come up and justify these differences.
There are good photos of the arrangement, courtesy of poster "fenouilledes" from France.