When I was speaking to an automobile enthusiast, I came across a situation where I couldn't express what I had in my mind about the kick-starter bikes.
I want to know the better conjunction to connect two clauses. The second clause has to be contrasted more than the first clause.
Clause 1: Sometimes the Kickback even from bikes with lower displacement could be more painful while kick-starting.
Clause 2: You could think how tremendously painful it could be when the bikes with higher displacements kickback while kick-starting.
Kickback means, a sudden forceful recoil of a kick lever used for kick-starting.
Which conjunction can be used to convey increase of contrast?