Means that their surface need not to be shaved? Just grind and install? Yani jo salooq 70 ka valve ka sath hotha ha?
Frankly after this valve job o feel it lost some top speed.
I think price of gs valve would be sky high, qingqi should be cheap and durable?
Here in pindi I don't see many sazgar shops.. Rickshaw market is captured by new Asia, and siwa. New rickshaws even use disk brakes. Though their disks were very thick.
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