What are your opinions on -1 +1 sprocket upgrade compare to the -1 +2? Is it worth it?

Thanks in advance, im still learning about these bikes.

 

quicker accel is all its good for(both). Higher hwy rpms, a wacky speedometer and odometer whatout a corrector(at least 80 bucks) is the result. Just thinks to think about. if its just a fun bike for around town then i would, but if you plan on riding it over a few hours it will get annoying

 

How far off would the speedo be off from +1 compare to +2 on the rear sprocket?

 

the -1 in the front throws it all off because it inaccurately measures the rpms the final drive is spinning that the front sprocket connects to. this measures speed and milage