Re: New Chain and Sprockets

Posted by gonebiking-2 on Oct 01, 2008; 10:19pm
URL: http://vintage-and-classic-hondas.81.s1.nabble.com/New-Chain-and-Sprockets-tp458168p458169.html

I have a 1981 CB750K which was factory fitted with a 15 -44 set up. Great acceleration and reasonably good fuel consumptiom at around 42-45 MPG. I changed sprockets and chain after the genuine Honda sprockets/chain were completely worn out after some 6,000 miles. I replaced the rear sprocket with  40 teeth, and despite some problems with starting on hills and two up, she runs a 1000 rpm less at higher cruising speed. The rev counter rarely sees 4500 RPM at 130-140 KMH ( 80 - 90 MPH ), but performance has dropped. As I am doing a ground up restoration I am going back to a 15 - 44 set up again and that sould suit the bike just fine. There are many different sprocket set ups, but it also depends what the ratios in the gearbox are.