Big Bore Kit : Yamaha R1 Forum

mr_cute32208 · 08-09-2007, 02:08 PM

What's up folks im wondering if anyone know a link or web site where I can get a big bore kit for my 99 R1. Thanks in advance

kwcomp · 08-09-2007, 02:10 PM

www.wiseco.com
www.jepistons.com

1longR1 · 08-10-2007, 09:49 AM

CP pistons. best in business.. but pricey as well

kwcomp · 08-10-2007, 09:53 AM

Quote:

Originally Posted by 1longR1

CP pistons. best in business.. but pricey as well

Really? I havent heard of them, do they make a standard bore kits with higher comp?

JAYSTENSEC4CYL · 08-10-2007, 08:53 PM

yes they do.

I asked Lee from Lee's performance about them once. He told me they are better made than the others, but don't show more HP on the dyno than the others. He said for the average guy J&E's were more than good enough.

Used the +2mm 13.5 to 1 J&E's on my buddies 04 G1K, 177hp