View Single Post
Old January 11th, 2019, 04:27 PM   #45
Mohawk
ninjette.org guru
 
Mohawk's Avatar
 
Name: Chris
Location: Bristol, UK
Join Date: Feb 2016

Motorcycle(s): ZZR250, VFR800

Posts: 475
You can always try this calculator
http://www.timeinthegarage.com/exhaust-calculator/

For the ZZR the numbers are Exhaust 66BBDC 26ATDC @14000rpm for a 125cc cylinder

For the Ninja 250R - 61BBDC 31ATDC @12000rpm for a 125cc cylinder
Mohawk is offline   Reply With Quote