I'm planning to get a set of UR pulley. should I buy the belt too or is it okay to use the stock belt?

 

smaller pulley will require a smaller belt

 

oh no..... here we go again......

 

UR pulley mod was one I was really wanting to do...the full Ultra SS set, until I read the Dinan white papers..

 

can u briefly explain what was said on the Dinan white papers?

 

UR pulley = resonating vibration in crank = bad (theory)

 

do we really need to have another 12 page UR pulley causes damage.. no they dont..yes they do.. no they dont.. arggg!! do a search before another endless debate starts

 

Here ya go....link

Im not saying its good/bad or right/wrong...but something that causes this much of an argument/controversy when it comes up is why i mentioned it. With all aftermarket parts/accessories there is always risk of malfunction, whether due to a installer mistake or product defect, which equates to risk/reward. There is risk with all aftermarket parts and we all know this. But my decision with all parts comes to performance/reliability/cost/risk. It's a risk like anything else...one I may or may not take...i havent yet decided...