Gear up kits

[pete130]

Im wanting to get more top end with a bbk i know i need the extra taque to push bike with gearing mods.
Iv desided to get the 
15/42    9.1/1
Or
17/45    9.2/1
Theres not of diffrence the 15/45 is straight cut gears and 17/47 is worm KN brand should i go with the Malossi or the KN same price and shipping 

What would you buy 

[spaz12]

I'd get the straight cut gears in a scooter because there is less loss. In a high horsepower car I would pick helical because they can take more power.

[gsx600racer]

Dec 18, 2017 21:19:35 GMT -5 spaz12 said:

I'd get the straight cut gears in a scooter because there is less loss. In a high horsepower car I would pick helical because they can take more power.

Here is an article to support your comment.

As for gearing choice, its going to boil down to how much low end acceleration you are willing to sacrifice. The taller gears are going to take away from your take-off acceleration. Having more power will overcome some of this setback.