I have a Pulsar 180 UG3 with the following setup:
1. Both tyres have tubeless valves. K&N installed with 125 sized jet. Open Chain cover.
2. R15's front tyre was installed 5000 kms before, and they work fine!
3. Rear tyre WAS a Ceat Vertigo Dual Purpose type, but it developed a problem whereby some air was mysteriously trapped within the tyre... It resulted in a bumpy ride.
Have a look below, the tyre has gone fat in one place only:

This is how it was from the inside:

So, I got a rear tyre from R15 itself, which is a Zapper-S 100x80/17. It was installed successfully:
\Grip levels are awesome now, with both tyres from R15! And the bike is slightly under-geared now, after the rear tyre change. Balance is good.The wheel moves freely and the tyre is well aligned on close inspection.
But despite all this, the performance has decreased. Somehow the bike feels less torquey at the low end and mid range too.
So, my questions are:
1. Is it true that Soft Compound tyres do not give much speeds compared to hard compounds, like I read in a MotoGP 3D Game too?
2. What went wrong with the CEAT tyre? Why did it catch air within itself? Although it will be refunded under warranty, was it any of my mistake that caused this? There was no puncture in the place where the tyre caught air.
3. What can I do to get the torque back, keeping the same tyre only? Can I apply something on it, that will reduce grip and give me the low end response back? I admit I never heard of anything applied on a tyre.






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